Steel fixer preparing steelwork prior to concrete pour. This reinforced steel base will make the concrete considerably stronger
Concrete has an ancient history. It was extensively employed by Romans builders and many of their concrete-based structures survive virtually intact to the present day. Concrete is a construction material composed of cement, coarse and fine aggregate and chemical additives. Mixed with water, it quickly cures into an exceptionally hard stone-like material that forms the basis of much modern construction. Concrete is strong in compression but weak in tension as the cement holding the aggregate in place can crack, allowing the structure to fail. Reinforced concrete solves these problems by adding metal reinforcing bars (or glass or plastic fibres) to carry tensile loads. Steel reinforced concrete is the most used type of modern concrete. Care must be exercised and protective equipment worn when pouring concrete, the wet material can cause severe skin burns due to causticity of the mix.
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Location: London, UK
Photo credit: © qaphotos.com / Alamy / Afripics
License: Licensed
Model Released: No
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