Standardized use from precast to cast-in-place applications

Infra-lightweight concrete (ILC) originally represented an evolutionary stage of structural lightweight concrete (LC) in accordance with DIN EN 206 and DIN EN 1992. This new type of concrete had a significantly lower dry density to ensure low thermal conductivity, whereas its strength was still partially in the range specified in the aforementioned standards. Nowadays, increasingly stringent requirements for the thermal insulation effect of external walls require even lower bulk densities in order to retain acceptable wall thicknesses, which can no longer be ensured by structural lightweight...