Ready-mix concrete LCHP20HE50

Concrete is a construction material made from the combination of cement, water, fine aggregates (such as sand), and coarse aggregates (such as crushed stone). In Australia, AS1379 details the specification and supply of concrete based on compressive strength, slump, mix proportions, durability criteria and testing methods. The standards define two classes of concrete in relation to their design and application, these being normal and special. Normal class concrete is typically used for residential applications, such as house slabs and driveways, where compressive strength is the sole specification. Special class concrete, however, is commonly used for commercial projects, such as bridges, roads, and high-rise buildings, with more detailed specifications which may require concrete of high strength, performance, slump, workability or durability.