about concrete

What I find interesting about concrete is the way it developed its reputation as the leading material in the building industry. Originally, concrete was a simple mixture between cement, aggregate, and water. The result was a cheap and strong building material. The main problems of the material were its poor handling of tension forces and it was extremely heavy. The solution to both of these problems was the introduction of metal reinforcement in the 1850s. These changes made concrete become lighter and more structurally efficient. Since then, concrete has become one of the most common building materials.

then.

heavy. thick. no reinforcement.

 

 

 

now.

light. thin. reinforced.

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