Reinforced Concrete Contractors Blog

Formwork is a temporary structure or mould that casts liquid concrete into a solid structure. It plays a crucial role in building strong concrete structures in construction work. The transition of formwork from wood pieces to steel, aluminium, and plastic changes the scenario in construction. Materials like aluminium and steel offer more sustainability and durability of the structure. They also help reduce the cost of construction.

Timber-Based Formwork Solutions in Past Days

Let's see how timber-based formwork solutions gradually evolved.

Timber as the First Material

From the early days of civilisation, timber has been used in construction as a support structure. In ancient culture, for example, Romans and Greeks built houses using timber. Its affordability and flexibility made it the first material for supporting structures. However, one of its downsides is its lack of durability.

Handcrafted Formwork Techniques

Roman civilisation was known for using the first formwork in construction. Ancient Roman buildings like the Pantheon and the Colosseum were built using timber formwork. Timber formwork was readily available and flexible, which was one factor in ancient civilisations' choosing timber as a material for formwork. So, you can understand how people were fond of design and quality back then.

Transition to Steel and Aluminum and Benefits

Later, after the discovery of steel and aluminium, people shifted towards these materials, and they became a popular choice for construction formwork.

Transition to Steel

One of the main reasons for replacing timber with steel formwork was its durability, strength and sustainability. Steel formwork is comparatively more substantial and more durable than timber. Besides, you can precisely shape a steel formwork component. The precision of steel formwork adds aesthetic value to the concrete structure. It results in a smooth and well-finished surface.

Aluminium: Lightweight and Efficient

On the other hand, contractors now use aluminium formwork solutions to improve the ease of building construction. A Canadian engineer, J.W. Malone, developed an aluminium formwork system in the 70s. It revolutionised the construction industry. An aluminium formwork system is more lightweight than steel. So, you can use aluminium formwork to construct your high-rise building.

Innovations in Formwork Technology in the Present Era

Let's discuss how modern innovation trends in the development of formwork solutions have shaped its adoption in construction.

Precast and Modular Formwork

The rise of precast concrete in modern construction work is evident. Modular formwork is also a trend. The primary reason for using a modular formwork system is that it requires less time to assemble and install. Besides, contractors don't need to purchase the system; they can hire it for a particular project.

Plastics and Composite Materials

Now, you can also see the development of plastic materials to be used as a formwork solution. The main reason for using plastic is that it's lightweight and cost-effective. You can quickly assemble and de-mould plastic formwork solutions.

Automated and Digital Formwork Solutions

3D printing technology brings innovation and autistic design to formwork solutions. Formwork contractors and architects use 3D-printed formwork solutions to give concrete elements in a building a unique look. So, you have the opportunity to implement complex design to increase the attractiveness of a building.

Sustainable Formwork Solutions

Increasing awareness about sustainability has also influenced practices in the construction industry. Formwork contractors have adopted sustainable approaches to building formwork solutions.

Recycled and Eco-Friendly Formwork Materials

The use of recycled plastic materials has become a common practice in the creation of formwork solutions. Reducing plastic waste is a positive approach to sustainability, and formwork contractors have now developed formwork panels that can be used multiple times in multiple projects.

Reducing Construction Waste

Using durable formwork solutions to implement sustainable practices in the formwork installation and construction industry is important. Formwork contractors must reduce waste and reuse old materials. For example, using plywood and Timber might not be beneficial in adopting a sustainable practice. The main reason is that these materials cannot be used for long. After a few uses, plywood and other wood materials will turn into waste.

Conclusion

The evolution and transformation of construction formwork solutions are fascinating. Considering the first usage of formwork in Roman civilisation, you understand how important it is in constructing large buildings. Modern constructors have adopted sustainable practices by utilising more durable formwork solutions like aluminium and steel. Besides, 3D printing technology has revolutionised formwork construction, improving a building's aesthetics. Reinforced Concrete Contractors is a reliable name in the construction industry. Contact us today for various services, such as formwork and reinforced concrete construction.

Choosing the right concrete mix is crucial to the sustainability and durability of concrete structures. You should select a specific concrete mix based on the purpose of the computer structure. For example, you may plan to build a driveway or a patio. Both have different uses; the former concrete structure will likely have heavy car loads, while the latter might not have to carry such high loads. In the following discussion, you will learn to choose the right type of concrete mix for your projects. You will understand that it is essential to consider the project requirements and environmental scenario before choosing the right concrete mix. Continue reading to learn how professionals select concrete mixes for different concrete structures.

Know your project requirement.

First things first, you must have a clear understanding of the purpose of your reinforced concrete construction project. If you are building a concrete structure to carry car loads, it should be strong enough not to crack under pressure. Besides, the concrete will also be subject to extreme cold and heat. On the other hand, if your concrete structure is meant to carry loads of a building, the concrete mix must be different.

Consider environmental conditions

When constructing a concrete structure, you must consider the environment and conditions. For example, if you are building a concrete structure in a place with extreme seismic activities, the concrete mix has to be different than usual. Similarly, if you are constructing in an environment where extreme rain and cold are common, you must choose concrete mix accordingly. Generally, reinforced concrete structures are durable under rain, heat, or cold. However, the difference in the water, sand, cement, and aggregate ratio makes all the difference. Let's discuss different types of concrete mixes and their load-bearing capacity.

Understand different concrete mixes.

To ensure your concrete achieves the required durability and strength, it is essential to choose the right mix of cement, sand, and aggregates. Let's see which type of concrete mix has the required compressive strength. The compressive strength of the concrete is measured in psi, which stands for pounds per square inch.

There are several other grades of concrete beyond M25. They start at M30 and go up to M70. The cement, sand, and aggregate ratio is designed to meet the concrete durability requirement. These are also called Design Mix concrete, as their mixtures are created based on project requirements.

Benefits of choosing the right concrete mix

When choosing the right concrete mix for your construction project, you get the following benefits.

Durability

You get a reliable concrete structure when you select the right concrete mixture based on the compressive strength requirement. For example, if you choose a concrete mixture with low psi for your driveway, it will not be durable. It will soon decay as it doesn't have the required compressive strength to carry car loads. Choosing the right concrete mix makes the concrete structure durable.

Cost-effective

If you use the right concrete mix for the concrete construction, it reduces resource wastage. Besides, its durability makes it strong enough to sustain for extended periods. So you don't have to repair the structure within a short period.

Peace of mind

With the right mix of concrete, you don't need to worry about its structural integrity. Once you construct a concrete structure with the required concrete mix, it gives you peace of mind. It allows you to focus on your other tasks or projects.

Final thoughts

Before you start your concrete construction project, understand why it is done and what its purpose is. If you have a clear idea of how much carrying load capacity will be required, you can select the specific concrete mixture. As a result, you will get a durable and long lasting structure that will not required in very often.

Constructing the RC frames is not easy at all. Although they look smooth from the outside, the contractors face many hurdles entering the circle. Let's examine the tough points and determine how they require the application of both efficiency and skill.

1. In Battle of Uncertainty:

Weather Imagine pouring concrete on a sunny day, only to have sudden rain ruin everything. Weather plays a huge role in RC frame construction. The rain could wash away the freshly poured concrete, and the high temperature would remove water from it rather quickly, causing cracks, as the cold weather will slow down the curing process. All of this could affect the whole project and cause delays. The model contractors are consistently effective in paying attention to the weather and modifying themselves so that the quality of the structure is not compromised.

2. Material Quality Assurance

The strength of an RC frame depends significantly on the brand of materials being used. If the concrete mix is not up to the mark or the steel reinforcements are of poor quality, the entire structure can be weak and unsafe. Finding reliable suppliers and performing regular quality checks are essential, but occasional flaws can slip through even then. RC frame contractors must act as detectives, inspecting every batch of materials to guarantee safety and durability.

3. Overcoming Time Limitations

Construction deadlines are usually not very forgiving, too; they are horrible nightmares for many contractors. A tight schedule is fixed for the job, and any delay, whether caused by bad weather, lack of material, or labor issue, leads to an entire chain reaction. Meeting such deadlines requires planning and prompt decisions all the time.

4. Addressing Structural Defects

Even with the best planning, unexpected structural defects can arise during or after construction. Cracks in concrete, uneven surfaces, or weak joints can occur for various reasons, such as improper curing or design errors. Fixing these issues isn’t just time-consuming—it can also be expensive. Contractors need to act fast, identifying and rectifying defects before they compromise the building’s safety.

5. Adapting to Conditions at Site

Every construction site is different and comes with specific problems for each one. Uneven terrain, limited space, or proximity to other buildings could make setting the RC frame in place tough. Contractors must get creative, using specialized equipment or altering construction techniques to suit the site. It’s like building a house of cards on a windy day—requiring focus and ingenuity.

6. Keeping Up with Regulations

Construction isn’t just about building; it’s about following rules. Local building codes and safety standards are strict, and failing to meet them can result in hefty fines or even demolition of the structure. Staying updated on these regulations and ensuring every step aligns with them adds another layer of complexity to the contractor’s job.

7. Budget Constraints

Last but not least, money matters. Clients often have tight budgets, and contractors must find ways to deliver quality work without overspending. Cutting corners is never an option when safety is on the line, so contractors must get creative with cost-effective solutions while maintaining high standards.

RC or reinforced concrete frames are the main elements of modern construction. RC frames help build strong and sustainable concrete structures. Please continue reading to understand RC frames and how they support a building's strength. In this article, you will learn how RC frame contractors utilise modern technologies and elements to make a strong RC frame and structure.

What is an RC frame?

Reinforced concrete frames are mainly made of two components: beams and columns. These concrete components are made of concrete and reinforced steel. Modern concrete contractors focus on building a strong RC frame to construct a building. RC frames provide a strong foundation for the building that will be constructed. Columns and beams with steel rods reinforced inside provide structural stability to a building. Strong and sustainable RC frames can save your building from disastrous earthquakes. You can contact Reinforced Concrete Contractors (RCC) for solutions to any reinforced concrete solutions.

Why do I need to build RC frames?

Modern-day building construction is based only on a strong and sustainable reinforced concrete structure. There are valid reasons for this, which include:

Structural stability: Constructing a strong and sustainable reinforced concrete frame provides structural stability to buildings. If you plan to create a high-rise building, first, you must build a structurally strong reinforced concrete frame. Your contractor can make RC columns and beams necessary to support the building's construction. Site engineers and designers plan meticulously before constructing RC frames so you and your family can live in a safe and secure house.

Design flexibility: Reinforced concrete frames are built with concrete and steel rods. RC frame contractors can create bespoke designs for your building according to your requirements. The design flexibility of RC frames is one reason you can use them to construct your building. Iconic buildings worldwide, such as the Burj Khalifa, are also built using reinforced concrete structures.

Protection against seismic activities: Multistory buildings built using strong, sustainable reinforced concrete frames can protect seismic activities. Earthquake-prone areas like Japan, Taiwan, and others use RC concrete structures to make buildings earthquake-resistant. If you plan to build your house in the UK in an area with high seismic activity, ask your contractors to design earthquake-resistant RC frames.

Fire resistance: Instead of using timber or other metal bars, RC frames can be vulnerable to a fire accident in a building, which can lead to financial and human losses. However, RC frames do not readily catch fire, making buildings and human lives safer. It provides higher structural stability than timber or metal bars and is fire-resistant. In a fire accident, you will have more time to escape the building as the structure will not catch fire instantly.

Why RC frames are the backbones of modern construction?

Reinforced concrete frames are the backbones of contemporary construction because they have higher load capacity than traditional timbers or other materials. Concrete frames with reinforced steel bars have higher resistance against shear forces and bending moments. If a structure faces high loads or is weaker than other building parts, it may develop cracks. Instead of breaking down under pressure, these tracks on concrete frames and walls can inform property owners of the potential risks.

Large building construction and RC frames

The large building construction process also utilizes RC frames and structures. Providing structure and stability and securing the building are RC frames' fundamental objectives. Modern techniques of RC frame construction involve using metal fibres. The type of reinforced concrete fibres used depends on the load-bearing capacity. Mixing concrete and steel fibres can help build RC concrete frames or slabs with higher load-bearing capacity. RC structure with steel fibre enforcement also helps to create a building structure with unique designs.

Conclusion

If you are planning to build a multistory building, make sure that you construct a strong and sustainable RC frame. It will protect you and your family from significant accidents like earthquakes or fires. Use the best materials available to build RC frames and slabs. Why should you contact a professional RC frame contractor? If you are not an expert civil engineer, leave the reinforced concrete construction with a professional RC frame contractor. We provide the necessary resources to build reinforced concrete frames and slabs at Reinforced Concrete Contractors. Our experienced experts are skilled in providing two of our customers with the required solutions.

Reinforcing bars, or rebar, are a common element in construction projects. Different types of reinforcing bars help to strengthen a concrete pile or column, and rebars improve the tensile strength of concrete columns, bars, or piles. Are you planning to construct a reinforced concrete slab or foundation? Do you need ideas on selecting the correct type of rebar for your construction project? First, you need to know what types of rebars are used in construction. Read on to learn about different types of rebars used in construction projects. You’ll learn about different types of rebars and their unique characteristics.

Carbon steel rebar

One of the most commonly used rebar is the carbon steel rebar. The high carbon content in the reinforcing bar gives it the iconic black colour. This is why it is also called the ‘black’ rebar. These types of rebars have excellent tensile strength. One of the downsides of carbon steel rebar is its vulnerability to corrosion. It can undermine the structural integrity of the concrete and develop cracks around it.

Epoxy coated rebar

Epoxy-coated rebar is a better version of carbon steel rebar. It has an extra coating of epoxy on carbon steel rebar to make it corrosion-resistant. The tensile strength of epoxy-coated rebar is similar to that of carbon steel rebar. If you have the budget and are willing to increase the lifetime of the rebar used in your construction project, you should go for epoxy-coated rebar. It will safeguard the reinforcing bars from corrosion and maintain the structural strength of your building.

Mild steel rebar

Mild steel rebar is made of iron and carbon, but it has a relatively lower percentage of carbon, around 0.16% to 0.29%. The lower carbon content makes it less vulnerable to corrosion and improves its elasticity. These reinforcing bars are available in different diameters, from 6mm to 50mm. Mild steel rebar is most suitable for joints in concrete for its flexibility.

Deformed steel rebar

The name deformed steel rebar comes from the seeming deformity on the surface of the rebar. This type of reinforcing bar has patterns or indentations on its surface that increase the bond with the concrete. It also helps to improve the tensile strength of the concrete. Deformed steel rebar can improve the structural integrity of a structure if it comes with added epoxy coating. Speaking about resistance against corrosion, two types of deformed steel rebars are there:

Thermo mechanically treated (TMT) bars TMT rebars are treated with heat to make them incredibly strong and highly corrosion-resistant.

High-strength deformed bars This type of bar, unlike TMT, is cold-processed. It also has excellent tensile strength and resistance to corrosion, but it is relatively economical to produce.

European rebar

European rebar is a less expensive reinforcing bar that uses an alloy of steel and manganese. The choice of alloy makes it easy to bend, which denotes reduced strength of the rebar. You should not use European rebar if you plan to use it in an earthquake-prone area. You should not use these types of bars if the building is in a region with extreme weather.

Galvanised rebar

Galvanised reinforcing bars are superior corrosion-resistant. The coating of the galvanised bar is much more resistant to corrosion than the epoxy-coated reinforcing bars. Epoxy-coated reinforcing bars have a delicate epoxy coating that can wear off during transportation or construction. The high value of galvanised rebar comes with a higher price than carbon steel rebar or epoxy-coated rebar.

Glass Fibre Reinforced Polymer (GFRP)

Glass fibre reinforced polymer (GFRP) is an excellent option for reinforcing bars because it is fully resistant to corrosion. It is almost similar to carbon fibre. While it can be used as a reinforcing bar in construction, it cannot be bent or given a customised shape on site, making it a significant challenge to use in construction projects. GFRP comes with a high cost, limiting its usage for customers with budget constraints.

Stainless steel rebar

Another type of rebar that is highly resistant to corrosion and damage is stainless steel reinforcing bar. This type of rebar is the most highly valued in the construction industry and is more expensive than epoxy-coated rebar.

Concluding thought

The construction industry has a wide range of reinforcing bars, such as carbon steel rebar, epoxy-coated rebar, galvanised rebar, and stainless steel rebar. You should select a reinforcing bar depending on your budget and the construction area. If you have a higher budget, go for galvanised or stainless steel rebar. Otherwise, you can opt for epoxy-coated reinforcing bars for better protection against corrosion. Alternatively, you can contact Reinforced Concrete Contractors and let us deal with the selection of rebars for your construction.

A cantilever beam is a strong structure used in construction. It is supported at one end and the other end is free of any external support. It is a unique design of beams used in construction. In this article, you will get an idea of the cantilever beam. You will understand how it can carry loads without support on the other end. In this discussion, you will learn what bending moment and shear forces are required for a cantilever beam.

What is a cantilever beam?

A cantilever beam is a unique structural element. It is a horizontal beam that extends its arm to carry loads. A cantilever beam is only supported at one end. The unsupported part of the beam is called the cantilever. It often extends beyond the support point. If the cantilever beam is not constructed with proper engineering calculations, it may fail to carry the loads. Building contractors and engineers carefully design a cantilever beam. They should ensure that the unsupported portion is substantial enough to hold the weight of the building. A powerfully built cantilever beam improves the aesthetic appeal of a building or structure. In modern construction, this type of beam showcases engineering advancement.

What is the shear force and bending moment for a cantilever beam?

Shear force and bending moment are crucial elements to design a cantilever beam. Shear force is the force that acts parallel to the surface of the cantilever beam. The total load on a cantilever beam equals the total shear force. On the other hand, a bending moment is a measurement of force that causes a structural element to bend. For cantilever beams, the bending moment is the total of moments between the section and the beam's free end. The design of a cantilever beam depends on shear forces and bending moment. Similarly, construction elements used in cantilevers impact their capability to carry loads.

How are cantilever beams designed?

The can believer beams may be vulnerable to deflection, shear forces, and bending moments. Bending moment and shear forces occur at the supported part of the beam. Alternatively, the maximum deflection happens at the unsupported part of the beam. In engineering, deflection refers to the movement of a beam from its original position. The total load affects the deflection of a beam in a building. Hence, the design process of the cantilever beam is tricky. Engineers calculate the total load and length of the cantilever beam for its design. Depending on these factors, a reinforced concrete cantilever beam will be constructed. The higher the load, the stronger the cantilever beam will be. More reinforcement will be required. A cantilever can also be made of steel or concrete, depending on the load these beams must carry.

Where are the cantilever beams used the most?

The cantilever beam's unit design makes it suitable for modern construction. It is used in roofs, balconies, stadium roofs, bridges, etc. The cantilever mechanism is also used in cranes. A cantilever supports the midsection of a bridge. The Forth Bridge is a great example of a cantilever bridge in Scotland. Temporary cantilever beams are also used during building construction. They help support the structure of the building and can easily be removed when the work is done.

Advantages and disadvantages of cantilever beam

If you do not consider the engineering point of view, a cantilever beam improves the aesthetic appeal of a building. It reflects engineering expertise. That being said, cantilever beams are more accessible to construct. It is a better option to compensate for negative bending moments with positive bending moments. In building bridges, cantilever beams provide support without scaffolding work. On the other hand, a cantilever is often not regarded as an economical truss. This type of structure is also vulnerable to large deflection.

Conclusion

Cantilever beams are an excellent option for supporting roofs, balconies, and other structures. They are also used in bridges and large cranes. However, a cantilever beam is vulnerable to large deflection at its unsupported end. At the same time, the supported part is susceptible to shear force and bending moments. Engineers calculate the total load cantilever beams are to carry and construct these beams accordingly. If you use cantilever beams in your building, it may also improve its aesthetic appeal. However, you should contact a professional contractor. Contact Reinforced Concrete Contractors today for your residential construction project. We offer a free quotation and excellent service.

In construction work, different types of beams are used, which are made of steel, timber, or reinforced concrete. Beams support large buildings like bridges, high-rise buildings, etc. Beams are made to withstand shear forces and bending moments to protect the structure from collapsing. Intense beams ensure the safety of the building and are efficient for domestic, commercial, or industrial purposes. In this blog, we shall discuss different types of beams and their usage in construction. If you plan to construct a residential building or an industrial warehouse, continue reading the blog to learn about beams and beam structures.

Why are beam structures essential?

Different beams and beam structures are essential as they help increase a building's structural support, protect it from structural settlement, and improve its attractiveness. If used efficiently in construction work, beam structures can significantly improve their ability to absorb shear forces and bending moments.

What are the different types of beams used in construction?

The following section will discuss different types of beams used in construction.

Fixed beams

Fixed beams are most commonly used in structures among different types of beams. It is also known as a clamped beam and is supported at two ends. The fixed beams' rigid nature helps carry dynamic and static loads. Fixed beams are ideal for structures that require protection against bending moments and minimum structural deflection. These beams are used in bridges and large buildings like industrial warehouses.

Cantilever beam

The cantilever beam is a solid and rigid structural element in a building or structure. It is fixed through reinforcement or anchoring at one end and free on the other. A cantilever beam is exposed to vertical loads on its free side. The free side or arm-like extended part of the cantilever beam can bend downwards depending on the vertical load on the structure. Due to such downward bending, the upper fiber of the free end is subjected to tension, and the lower end of the beam is subjected to compression. As the free end of the cantilever beam is exposed to more tension, more reinforcement is provided in that section. 

Supported beam

Of all the different types of beams, supported beams are the most common and widely used in construction. The name of the structure suggests the simplicity of the beam’s making. It is supported at both ends, and load is carried on the rest of its parts. Its easy construction process makes it the first choice for domestic or small-scale industrial construction. The most common use of simply supported beams also includes beds of machine tools due to their load-bearing capacity.

Overhanging beam

Overhanging beams are similar to supported beams. However, this type of beam extends both ends beyond its support. The extended part of such a beam helps to carry additional weights at the overhanging section.

Continuous beam

A continuous beam supports more than two points. Its design helps distribute loads on multiple support points. Walls, columns, or other structured elements support a continuous beam. The distribution of loads in multiple points increases the beam's structural ability, which helps reduce bending moments.

Tie beam

A horizontal beam connecting two or more columns and structural elements is called a tie beam. The function of the beam is to tie together all the structural elements and prevent them from falling apart. This type of beam is generally used in constructing houses and industrial structures. Tie beams are used in a building to maintain structural rigidity and stability. Reinforced concrete is often used to build tie beams at the ground level to connect all the columns and create a platform for the building. It also helps to prevent differential settlement of the building structure.

Hip beam

A hip beam is used to build a building's roof. It is placed between the ridge board and the outside corner of the roof. A hip beam supports a hip rafter and is mainly used in residential building roof construction.

Conclusion

Beams are essential to a building as they help maintain its structural integrity and rigidity. Different beams, including fixed beams, supported beams, cantilever beams, etc., play a crucial role in a building based on their efficiency. Reinforced Concrete Contractors have a team of experts who can help you with all kinds of reinforced concrete solutions. Contact us today for a personalised quote.

Different types of reinforced concrete are used in construction work to withstand bending, shear, torsion, etc., forces. Reinforced concrete (RC) has revolutionised the art of construction by increasing structural durability and its life cycle. In this discussion, you'll learn about different types of reinforced concrete and recent developments in this area. The advantages and disadvantages of these types of RC will help you determine the most suitable type for your construction work. Different reinforced bars and materials, such as steel fiber, polymer, etc., are used in such concrete to extend its structural integrity. For domestic usage, reinforced steel bars manufacture concrete slabs or reinforced beams.

Precast concrete

Precast reinforced concrete, or simply precast concrete, is manufactured away from the construction site in a factory using a mould. Reinforced bars are used to make strong and durable precast concrete.

Advantages

If a strict construction timeline is your priority and you want to build a durable structure in harsh weather, precast concrete is your best option. You can use precast concrete walls, slabs, beams, or columns to reduce time and labor costs in construction.

Challenges

Precast concrete offers limited flexibility for design and customisation unless a specific direction is provided to the manufacturer. It can also break or be damaged during transportation, another challenging factor.

Steel fiber reinforced concrete

Steel fibers of different shapes and sizes are used in RC structures. Reinforced concrete is a strong material but can be vulnerable to bending or shear forces. Unevenly distributed steel fibres help protect the concrete from developing cracks and reduce its brittleness. The use of steel fibres is widely practised, and commercially sold steel fibres are expected to grow by 20 per cent worldwide (Liew and Akbar, 2020).

Advantages

Steel fibres have replaced steel mesh in reinforced concrete, providing design flexibility. Steel fiber-reinforced concrete offers superior resistance against compression, torsion, or shear forces on the concrete. You can build concrete structures with less material, which provides resistance and durability similar to traditional concrete.

Challenges

The length and size of steel fibres must be appropriately calculated before they are used in different types of reinforced concrete. A fixed standard size is not suitable for all concrete structures. Another challenge is that steel fibers can sometimes protrude from the concrete surface, undermining its aesthetic values.

Prestressed reinforced concrete

Concrete structures are more likely to develop cracks under heavy compression, torsion or shear forces. To avoid this vulnerability, you can use a prestressed reinforced concrete structure. Prestressed concrete uses pre-tensioned steel reinforced rods before the concrete is cured. It strengthens concrete strength against tensile forces.

Advantages

Prestressed RC is more durable and resistant to shear force than traditional reinforced concrete. Due to its high load capacity, it is used in large construction projects such as bridges, rail tracks, concrete piles, etc.

Challenges

However, this type of concrete may cost you more at the initial stage and more for maintenance.

Carbon fiber reinforced concrete

The construction industry has used carbon fiber in RC since the 1970s. The material has been used to construct walls or partition walls. Carbon fiber-reinforced concrete increases its tensile strength and improves resistance against cracks.

Advantages

One of its advantages is the higher load capacity of carbon fiber-reinforced concrete. Due to the strong material quality of carbon fiber, it has a higher load-bearing capacity than traditional steel rod-reinforced concrete. Carbon fiber also safeguards concrete structures from corrosion or rust, as it does not rust like steel rods. Due to its lightweight characteristics, thin walls can be constructed without developing cracks.

Challenges

However, if you plan to build a carbon fibre-reinforced concrete wall, you must be prepared for a comparatively high construction cost. This type of reinforced wall also makes it challenging to modify once cast, making it difficult for further maintenance.

Conclusion

Reinforced concrete is one of the most solid and durable elements of construction. However, its brittleness makes it vulnerable to torsion, compression, or shear forces. Continuous development takes place to help you construct a strong and well-built structure. Modern developments suggest using steel or carbon fibre in RC structures to make them torsion or crack-resistant. Prestressed concrete is also being manufactured to manage high compression force and is used to carry heavy loads. Whatever your purpose, a reliable RC contractor is essential. At Reinforced Concrete Contractors, we can deliver reliable construction services to you. Contact us today for a personalised quote.

External links

Liew, K.M. and Akbar, A., 2020. The recent progress of recycled steel fiber reinforced concrete. Construction and Building Materials, 232, p.117232.https://doi.org/10.1016/j.conbuildmat.2019.117232

What are the different types of reinforced concrete beams?

A reinforced concrete (RC) beam is a crucial element of a concrete structure that carries loads vertically and faces forces such as bending, shear, torsion, vibration, etc.

Different types of reinforced concrete beams are used according to their utility during construction. The following discussion will include an account of various kinds of RC beams so that you understand how and why these beams are used in concrete construction. Before we start our discussion, some crucial terms must be explained to help you understand the debate better.

Important terms

Tensile strength- The maximum mechanical stress a material can withstand before it breaks if pulled or stretched.

Bending moment- A bending moment occurs in a concrete structure like a beam when an external force is applied, causing the structure to bend.

Ductile failure- In a reinforced concrete beam, when the steel reaches the point of failure sooner than the concrete, it is called ductile failure.

Now, let's discuss the different types of reinforced concrete beams and how concrete beam design varies accordingly.

Over reinforced beam

An over-reinforced beam consists of excess steel reinforcement that exceeds the natural requirement of steel reinforcement in the concrete beam. Because the reinforced steel is present in greater numbers, the over-reinforced beam can carry more loads.

The benefit of over-reinforced beams is a longer service life due to their structural solid integrity.

However, in an over-reinforced beam, the concrete reaches the crushing point before the reinforced steel, which causes a sudden fracture of the beam. It is often dangerous for the concrete structure as it does not develop cracks showing signs of structural failure.

Under reinforced beam

In an understanding of reinforced beams, the ratio of steel is less than the required, and if it is under pressure, the steel reaches its crushing point faster than the concrete. This type of beam undergoes ductile failure and develops multiple cracks.

Unlike over-reinforced beams, sudden fracture is not seen in under-reinforced beams. This allows building occupants to safely evacuate as multiple cracks appear before shattering the beam. Engineers use this beam type as it is cost-effective and gives warning before structural failure.

Balanced reinforced beam

The concrete and reinforced steel are placed in a balanced reinforced beam to simultaneously reach their maximum tensile strength. At the bending moment, the reinforced steel and concrete reach their breaking points.

These reinforced concrete beams are considered riskier as they do not develop cracks that would allow occupants to evacuate the building safely. The concrete's sudden structural failure makes it more dangerous. This type of reinforced concrete beam is suitable for buildings in moderate seismic zones and can be used for residential and commercial buildings.

Singly reinforced beam

A singly reinforced concrete beam places Steel bars near the tension zone. This type of reinforced beam is used where the load on the beam is comparatively lighter and the concrete is strong enough to handle it.

Singly reinforced concrete beams can be cost-effective but are less resistant to increased pressure. If the load exceeds its carrying capacity, this beam type can develop cracks at the tension zone. Singly reinforced beams may not be suitable for areas prone to seismic activities as they offer lower ductility.

Doubly reinforced beam

Doubly reinforced beams use reinforced steel in both the compression and tension zones. They are more robust than singly reinforced concrete beams and can withstand pressure. Because they have reinforced steel at both tension and compression zones, doubly reinforced beams can be suitable for carrying greater loads. This beam type is ideal for heavy structures and resisting more prominent bending moments. These beams have higher resistance to cracks and structural durability, which helps improve the structure's appearance.

However, it may attract more cost than the singly reinforced structures and may not be suitable for lighter loads.

Conclusion

Understanding different types of reinforced concrete beams will help you in your construction work, regardless of your profession or work requirements. You will now be able to identify the requirement of specific types of concrete beams in different sections of your building.

However, it would be better to consult with expert engineers with years of expertise in construction. They can better advise you on the type of beams your building requires.

At Reinforced Concrete Contractors, our expert engineers, with years of expertise in the field, can offer you the best idea for building a robust building with appropriate reinforced concrete beams and reinforced concrete foundations. 

6 Tips to Choose the Right Reinforced Concrete Contractor

A contractor should have years of experience and expertise in concrete work. His top priority should be his flexibility to assist with your construction work.

Construction work can be tricky and complex if you do not hire a knowledgeable professional. Hiring a trustworthy and knowledgeable professional should be your priority. If you plan to select a concrete contractor, we have the top 6 tips to guide you. 

Table of contents

Define your requirements

Ask for a one-to-one conversation

Look for local contractors

Check background works

Ask for a quote

See if the contractor is trustworthy

How do you find a dependable and trustworthy concrete contractor?

We understand that finding a good and dependable contractor requires a lot of energy and time. Our guide to choosing a quality concrete contractor will help you add value to your construction work.

Define your requirements

Before looking for a reinforced concrete contractor, define your criteria. This will make the selection process much more manageable.

Decide if you have a budget constraint when choosing a concrete contractor. If so, look for a talented but relatively new one. Choosing a new contractor does not mean you must compromise on quality. There are new contractors with promising capabilities who are eager to provide you with quality services. Try to learn more about their service qualities, materials they use, professional knowledge, years of experience and others.

If you do not have financial constraints, you should go for concrete contractors with expertise in their field. They may charge you higher than any new contractors in the industry but will deliver value and expertise for your work. If you prefer quality work, then choosing a professional would be right.

Ask for a one-to-one conversation

How do you determine the level of professionalism and expertise in the work? One-to-one conversation can be an excellent way to do so. Ask for a date or time to meet with your potential construction contractor or talk with them over the phone.

Ask relevant questions to verify their knowledge of construction. A detail-oriented professional will be able to solve your query patiently. Ask them -

What is the ideal cement-water ratio you use for reinforced concrete construction?

Which type of steel should be used in the construction?

What type of concrete should be used for the ground condition of the construction site?

If you feel satisfied with his answers, ask him to survey the construction site. However, if your potential contractor does not have proper knowledge about reinforced concrete construction, he may not be able to answer your question correctly.

If he avoids your question or fails to give you the correct answer, change your direction and move to the next potential contractor.

Look for local contractors

You should look for a reliable concrete contractor by asking your friends and families. They should be able to provide credible information about the building constructor they worked for.

If they worked with a local constructor, you would learn about him from many local projects he had undertaken.

Local contractors also have sound knowledge of the local soil quality, so they can better advise you on the type of reinforced concrete construction suitable for your site. Local contractors may also give you a discount on the contract price as they will have to bear comparatively lower transportation and other costs.

Check background works

To verify their expertise in reinforced concrete construction, you can ask them for references to their past works, which may be around the local area. You may directly contact the customers and evaluate their satisfaction for yourself.

You can ask specific questions to past customers to understand the potential constructors’ professionalism. Your questions may include -

How did the contractor perform the task?

How much time did it take to be completed?

How helpful was his advice for your construction work?

Do you consider his quality of construction work value for your money?

These questions will prevent you from investing your time and money in the wrong person. Performing a background check will also assist you in negotiating the price of your construction and getting the best deal for you.

Ask for a quote

If satisfied with the contractor's previous work, you should ask for a quote. After surveying the construction site, he may consider special requirements for the job and provide you with a quote for the service.

Once you receive the quote, you can compare it with other contractors and their service quality.

When deciding on the best quote for the work, consider your priorities.

If quality matters to you, not the price, opt for the best quote that promises excellent service quality.

If you are under budget constraints, look for the lower quote any reinforced concrete contractor offers.

However, if you accept the cheapest quote, you may not get the best value for your money. It may indicate the use of lower-quality materials during the work, and the constructor may not have expertise in the field.

See if the contractor is trustworthy.

If you are satisfied with the service quote, your ability to trust the contractor should be the final criterion for selection.

Think of your interaction with him and how seriously he took you as a customer. Evaluate his answer and advice for your work. Think how authentic he seemed while answering your questions.

If you consider his responses and advice valuable and feel you can trust him with your reinforced concrete construction work, you will experience much more comfort working with him.

Conclusion

Hiring a professional contractor is a complex process that depends on your preferences and criteria. Choosing a local contractor is necessary, as he has expertise and knowledge of the local soil. On the other hand, choosing a reliable contractor who promises quality work at a favorable price may also work for you.

Structural Elements

When it comes to structural elements subjected to stresses, such as beams, columns, and slabs, it is essential to ensure they are properly reinforced. This is crucial to guarantee their ability to bear the loads imposed upon them safely. However, for our discussion, let us focus on concrete bases.

Slabs and Driveways

Reinforcement is generally considered beneficial in concrete construction, and reinforcement, particularly fibers, is standard among ground workers. In the vast majority of circumstances, the introduction of reinforcement is advisable, as it can have a positive impact on the concrete's performance.

Fibers are typically incorporated into the concrete mix during the mixing stage and have minimal effect on pouring or laying the concrete. This reinforcement method is often the preferred choice for ground workers, as it provides a convenient and effective way to enhance the concrete's properties without significantly altering the construction process.

It is rare to encounter situations where reinforcement could harm a concrete base. In most cases, the benefits of incorporating reinforcement, such as improved strength, durability, and crack resistance, outweigh any potential drawbacks. Therefore, reinforcement, particularly fibers, is generally considered a prudent and widely adopted practice in concrete construction.

Cost of materials

The cost of reinforcement can vary depending on the materials utilized and the required reinforcement for the project. Generally, fiber reinforcement will increase the cost of ready-mixed concrete by approximately 10%—a modest price to pay for the product's benefits.

The selection and quantity of reinforcement materials can significantly impact the overall cost of a construction project. Fiber reinforcement, in particular, has been shown to enhance the performance and durability of concrete, often justifying the relatively minor increase in material expenses. When planning a project, it is essential to carefully consider the tradeoffs between cost and the long-term advantages offered by different reinforcement options.

Proper Installation

Improper installation of reinforcement can compromise the structural integrity of concrete. Rebar and mesh require proper support to ensure complete encapsulation by the concrete; otherwise, potential failure or cracking of the concrete may occur in the future if the steel begins to swell due to rusting. In contrast, using fiber can be considered an additive to the concrete mix without the associated risks.

Conclusion

Reinforced concrete presents many advantages that render it the material of choice for numerous construction endeavors. The augmented tensile strength, enhanced load-bearing capabilities, and improved durability of reinforced concrete are well-established. However, the judicious selection of materials and meticulous installation are paramount to optimizing these benefits.

Whether constructing a modest garden shed or laying a driveway, comprehending the appropriate utilization of reinforced concrete can significantly impact the project's longevity, safety, and overall success. Therefore, when engaged in a concrete-based undertaking, it is prudent to consider the potential advantages of reinforcement. In all likelihood, the incorporation of reinforcement will prove advantageous.

At RCC, we offer the perfect concrete solution for your project's success. Our diverse range of concrete types caters to a wide array of requirements. This blog will decisively explore each concrete type's unique features and benefits, empowering you to make an informed choice that aligns flawlessly with your project's specific needs.

10MM CONCRETE - THE SUPERIOR CHOICE

This concrete composition is unparalleled in delivering a flawlessly smooth finish, making it the perfect solution for applications that do not demand heavy-duty concrete. Extensively utilized in cavity wall construction, the smaller stone size ensures the concrete's effort flow, simplifying the construction process. If you require intricate formwork, this concrete is the undisputed choice, offering unmatched versatility and performance.

SPECIALTY CONCRETE: THE SOLUTION FOR EVERY NEED

Specialty concrete is the definitive answer for any construction challenge. These high-performance mixes are engineered to tackle the most demanding applications with unwavering precision. Whether you require lightning-fast setting times, superior flow properties, or unparalleled strength, a specialty concrete solution meets your every need. 

Forget about compromising or settling for less – specialty concrete empowers you to conquer even the most complex construction projects. These advanced materials are designed to deliver tailored performance, leaving no room for ambiguity and uncertainty. Embrace the power of specialty concrete and unlock a world of possibilities for your next venture.

FOAM CONCRETE

Foam concrete is superior for insulation, floor leveling, and void filling. Its exceptional thermal and sound insulation properties make it an unparalleled option for commercial and residential projects. Furthermore, its low density provides outstanding strength while allowing for easier removal, making it the ideal solution for void filling around pipework in road foundations. 

RAPID SET CONCRETE

Rapid-set concrete is the solution for projects that demand swift turnaround. This concrete is the unequivocal choice for repairing roads, installing posts, or any other task that requires a swift return to service. It sets in a matter of hours without sacrificing strength or durability. Forget about lengthy curing times – rapid-set concrete is the decisive answer for projects that need to be back in action quickly. 

REINFORCE CONCRETE

Reinforced concrete is the premier choice for engineering high-performance structures. By incorporating steel reinforcement, this concrete type delivers unparalleled tensile strength, elevating the structural integrity of buildings, bridges, and any construction project that demands the utmost durability and load-bearing capacity. Reinforced concrete is the backbone of modern construction, providing the strength and resilience necessary to support the most ambitious architectural designs. Its superior performance makes it an indispensable material for architects, engineers, and construction professionals who demand the highest standards of quality and safety.

WATERPROOF CONCRETE

Waterproof concrete is the definitive choice for projects where water resistance is critical. This specialized concrete is engineered to defy water penetration, making it the ideal solution for substructures, basements, and any other application demanding exceptional protection.

At RCC, we collaborate with the industry's leading waterproof supply companies to provide our clients with the most advanced waterproof concrete solutions. We stand behind the reliability of our waterproof concrete, delivering uncompromising water resistance for construction needs.

SELF-COMPACTING CONCRETE

Self-compacting concrete is the superior choice for construction. It eliminates the need for manual compaction, flowing seamlessly into every corner of the formwork solely through its weight. This makes it ideal for intricate molds and heavily reinforced structures, guaranteeing a flawless finish without voids or honeycombing. 

This high-performance concrete delivers unparalleled results, ensuring a smooth, uniform surface without labor-intensive processes. Its self-leveling properties ensure complete coverage, leaving no room for imperfections. Contractors can trust Self-Compacting Concrete to deliver exceptional quality and efficiency, revolutionizing complex construction projects.

If you have a project coming up and require advice on the type of concrete to use, contact our specialist team today.

The Importance of Having Good Foundations

Constructing a robust and reliable foundation is crucial for the safety and longevity of any structure. The foundation serves as the bedrock, literally and figuratively, upon which the entire building rests. Without a solid foundation, the structure is vulnerable to sinking, tilting, or even collapse, putting lives and property at risk.

When planning a new construction project, the appropriate foundation type must be selected after carefully assessing the soil conditions and the anticipated load-bearing requirements. Shallow foundations, such as footings, rafts, and pad foundations, are typically used in scenarios where the surface soil can adequately support the structure. These foundation types are common in domestic projects like walls, steps, and small-scale buildings.

On the other hand, deep foundations are necessary when the surface soil is not strong enough to bear the load. This is often the case in areas with poor soil quality, high water tables, or unstable ground conditions. Deep foundations, such as piles or caissons, are driven or drilled deep into the earth, reaching more stable and load-bearing soil or bedrock layers. These foundation types are essential for supporting larger, heavier structures, such as high-rise buildings, bridges, and industrial facilities.

The appropriate foundation system must also be selected, taking into account factors like the available space, the expected stresses and vibrations the structure will endure, and the overall environmental conditions. Thorough site assessments, soil testing, and engineering analyses are crucial in determining the most suitable foundation design to ensure the long-term stability and safety of the structure.

By investing in a well-designed and constructed foundation, builders and homeowners can rest assured that their structures will stand the test of time, withstanding the various challenges of nature and the elements. A strong foundation is the cornerstone of any successful construction project, providing a solid and reliable base upon which the entire building can flourish.

Constructing Strong Foundations: Unleashing the Power of High-Performance Concrete

Regarding foundations, the demand for superior load-bearing capacity is paramount. In such scenarios, high-strength concrete emerges as the go-to solution, offering unparalleled structural integrity. These applications often involve piling projects, where reinforced concrete columns and steel is essential. Pile foundations may also be necessary for walls that require the creation of deep trenches, ensuring a robust and stable base.

Another type of deep foundation, caissons, is particularly suited for structures built below water level, such as bridges. These specialized foundations provide support and stability, even in challenging underwater environments.

Selecting the appropriate concrete strength is crucial to the success of any foundation project. A lower-strength mix can often suffice for shallow foundations, such as C15/Gen 2 for step foundations, C20/Gen 3 for slab foundations, or C25 for footings. However, much more robust concrete mixes are necessitated for construction that demands the highest level of support.

One of the most commonly used high-strength concrete is C40, which is particularly well-suited for applications with heavy traffic on the surface. However, for projects that require the absolute pinnacle of support, more exceptional concrete mixes are available, such as C50, C55, and C60. These ultra-high-performance concretes offer unparalleled strength and durability, making them ideal for the most critical foundation requirements.

At Reinforced Concrete Contractors, we pride ourselves on offering a comprehensive range of concrete solutions tailored to deliver the exceptional performance your project demands.

Choosing the suitable concrete can make all the difference, whether you're embarking on a domestic renovation or a large-scale commercial development across London, Surrey, Sussex, and Kent. Our team of experienced concrete specialists is here to guide you through the process, ensuring you get the perfect mix to suit your unique project needs.

For domestic projects, you might require a high-strength, durable concrete blend that can withstand the rigors of everyday use, such as for driveways, patios, or foundations. Alternatively, a more specialized blend with enhanced aesthetic appeal could be ideal for decorative features or exposed concrete finishes in your home. Our experts will assess your requirements, considering factors like foot, load-bearing capacity, and desired visual appeal to recommend the optimal concrete solution.

On the commercial side, the demands are often more complex. You might need a concrete mix to support heavy machinery, accommodate expansive floor plans, or even meet specific fire-resistant or environmental regulations. Our knowledgeable team will work closely with you to understand the unique challenges of your commercial project, whether it's a multi-story office building, a complex, or an industrial facility. We'll then tailor our concrete recommendations to ensure the utmost reliability, longevity, and compliance with standards. With our guidance, you can be confident that you'll have the right concrete solution to bring your vision to life.