Process for increasing the strength of granules

摘要

Process for achieving certain physical properties, for example increasing the strength of granules, in particular granules of large pore volume, such as for example slag, pumice, artificially foamed granules, vermiculites etc., in which a foam composition is formed from water and a foaming agent. An additive for achieving certain physical properties, for example cement dust for the purpose of increasing strength, is introduced into the foam composition, so that an initial foam composition is obtained. The granules are introduced into the initial foam composition. <IMAGE>