Concrete


 * CONCLUSIONS ABOUT CONCRETE**

The concrete is a material that is product of the manufactured mixture of cement and water, and other materials. It provides and economical substitute for traditional materials.

Concrete was used for the Egiptians in ancient ages, but, is in the 1860s when this product had a real importance for architecture by the invention of reinforced concrete. The reinforced concrete was invented by Joshep Monier, this material was developed to add the tensile strenght to the compressive strenght of mass concrete.

Also, concrete is used in hardscape construction, to form the flooring of a patio or to support a wooden deck.

There are three developments in the production of concrete that changed radicaly the architecture of the 20ths century. First, the concrete-shell construction, that permits the erection of vast vaults and domes with a concrete and steel content so reduced that the thickness is comparatively less that of an eggshell.

The second one is the precast- concrete construction, that employs bricks, slabs, and supports. It was maded to increase waterproofing and solidity in a economical way, also to reduce expansion anas contractions.

And finally, the thrid one, the prestressed concrete, that provides bearing members into which reinforcement is set under tension to produce a live force to resist a particular load.

The concrete is a economical and strong material that allow to construct differents kinds of structures and support big weights in a eficient way.