The bulk density of a normal concrete can be, for example, 2,300 kilograms per cubic metre and is essentially determined by the aggregate. The aggregate - for normal concretes mostly gravel, sand or chippings - is part of the concrete recipe along with the binder cement, water and admixtures.
The BS EN 206-1 standard differentiates between normal concrete, lightweight concrete and heavy concrete on the basis of the dry raw density.
Lightweight concrete is concrete with a dry density of less than 2,000 kg/m3, which is achieved by using light aggregate. The low concrete density leads to a lower dead weight and improved thermal insulation of the building components. With our lightweight concrete Insularis® supra, load-bearing and at the same time thermally insulating building components can be realised - without compromising on load-bearing capacity and serviceability.
High-performance normal concretes are used for numerous structural tasks. For normal concrete, the weight of a cube of one cubic metre is between 2,000 and 2,600 kg.
Concrete with an apparent density of more than 2,600 kg/m3 is called heavy concrete. As radiation protection concretes, heavy concretes shield dangerous radiation, for example in the radiology department of a hospital. For the production of heavy concrete, special aggregates with a high bulk density are used, e.g. baryte or ilmenite.
CEMEX offers you an extensive range of high-performance concretes and special building materials for a wide variety of applications - just contact us!