Precast Concrete Floor Wiki

Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement cement paste that hardens cures over time.

Precast concrete floor wiki.

3 5 this compression is produced by the tensioning of high strength tendons located within or adjacent to the concrete and is done to improve the performance of the concrete in service. Precast concrete designing buildings wiki share your construction industry knowledge. The precast concrete slab has tubular voids extending the full length of the slab typically with a diameter equal to the 2 3 3 4 the thickness of the slab. The reduced weight also lowers material and transportation costs.

Precast concrete is a construction product produced by casting concrete in a reusable mold or form which is then cured in a controlled environment transported to the construction site and lifted into place tilt up. Concrete floor designing buildings wiki share your construction industry knowledge. When these materials are mixed together they form a workable paste which then gradually hardens over time. Concrete is a composite material consisting mainly of portland cement water and aggregate gravel sand or rock.

In contrast standard concrete is poured into site specific forms and cured on site. Precast concrete is a form of concrete that is prepared cast and cured off site usually in a controlled factory environment using reusable moulds. It is substantially prestressed during production in a manner that strengthens it against tensile forces which will exist when in service. Precast concrete elements can be joined to other elements to form a complete structure.

It is typically used for structural components such as. In the past limebased cement binders were often used such as lime putty but sometimes with other hydraulic cements such as a calcium aluminate cement or with portland cement to form portland cement concrete named for its visual. Precast stone is distinguished from precast concrete using a fine aggregate in the.