What is concrete?
Concrete is an essential material. With a worldwide estimated consumption of between 21 and 31 billion tonnes of concrete in 2006, concrete is the second most consumed substance on Earth after water*! A world without concrete is almost inconceivable!
Concrete is a mixture of sand, gravel and/or other aggregates (the matrix), bound together by a water-based binder, cement. Admixtures (modifying agents) and additives (fine mineral powders) are sometimes introduced to improve the characteristics of the fresh concrete, of the mixing process and/or of the final hardened material.
*World Business Council on Sustainable Development, Concrete Recycling - A contribution to Sustainability, 2008.
What is a precast concrete product?
A precast concrete product is a factory-made piece manufactured with concrete and which, later, together with other pieces, will become part of a larger structure. Precast concrete elements are prepared, cast and hardened at specially equipped plants with a permanent location.
Once a precast concrete product is produced and all the undertaken quality controls satisfactory, the unit is stored until delivery. It is then transported for use at another site.
The main advantages of such a process are: