Form and Reinforcement Concrete Packages from BridgeCon: What You Need to Understand

08 September 2022

Because of its great compressive strength, malleability in its form, and widespread availability, concrete is consistently ranked as one of the most popular materials for use in the construction of structures. The use of concrete stretches back farther than a thousand years at this point in history. Because Portland cement was invented in the early nineteenth century, modern cement concrete has been used.

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Why Is Concrete Such a Common Construction Material?

It is not difficult to comprehend why concrete is ubiquitous in urban areas. It is simple to create from inexpensive and easily accessible materials, and it is simple to pour into moulds and form into various forms. However, the primary reason it is so frequently used in construction is that it is exceedingly strong in compression: you can squeeze it or place tremendous weight on it. It is frequently used in walls and foundations because it is excellent at resisting weight that has been heaped on top.

The most significant disadvantage of concrete is that it is approximately ten times weaker in tension than in compression. It quickly fractures or breaks when bent or stretched. Therefore, horizontal beams cannot be constructed from it unless it is reinforced with steel. Despite its appearance of heaviness and solidity, concrete is far lighter than one might expect: it is around one-fifth as dense as lead, one-third as dense as steel, 10 per cent less dense than aluminium, and just marginally denser than glass.

How About Reinforced Concrete?

Concrete is a composite material consisting of a cement matrix with aggregates for reinforcement. As we have seen previously, concrete is a material that functions effectively when compressed but not when stretched. By pouring wet concrete over sturdy steel reinforcing bars, we will be able to remedy that problem. When the concrete cures and hardens around the bars, we are left with a new composite material known as reinforced concrete. This material performs admirably in either tension or compression because the concrete is resistant to being compressed, while the steel is resistant to bending and stretching. Concrete is used as the matrix in reinforced concrete, with steel bars or wires serving as the reinforcement. In this way, reinforced concrete may be thought of as an application of a composite material within another composite material.

Their Advantages

Reinforced concrete is an important building material. It is utilised in one form or another for all constructions, whether large or small, including buildings, bridges, pavements, dams, retaining walls, tunnels, drainage and irrigation facilities, tanks, and many more. It offers more compressive strength per unit cost than most other materials, strong resistance to the effects of fire and water, and is the greatest structural material available for circumstances involving water. During flames of ordinary intensity, reinforcing bars protected by an adequate layer of concrete sustain only superficial damage and do not fail. Additionally, reinforced concrete constructions are extremely robust and have negligible maintenance costs. Compared to other materials, its service life is exceptionally lengthy. Under optimal conditions, reinforced concrete structures can be utilised eternally without degrading in load-bearing capacity. This may be explained by the fact that the strength of concrete does not diminish with time but grows over a very long period, measured in years, due to the protracted process of cement paste solidification.

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