scope:

This European Standard specifies the properties of lightweight aggregates and fillers derived thereof obtained by processing natural or manufactured materials and mixtures of these aggregates for concrete, mortar and grout, bituminous mixtures and surface treatments and for unbound and hydraulically bound applications for construction works. This European Standard covers lightweight aggregates of mineral origin having particle densities not exceeding 2000 kg/m3 (2,000 Mg/m3) or loose bulk densities not exceeding 1200 kg/m3 (1,200 Mg/m3) including: a) natural lightweight aggregates; b) lightweight aggregates manufactured from natural materials; c) lightweight aggregates manufactured from by-products of industrial processes or from recycled materials; d) lightweight aggregates as by-products of industrial processes. A list of the source materials that have been considered and are within the scope of this standard is given in Annex A (normative)