Encyclopedia
Slag pumice
Slag pumice - a material obtained by porosity of molten slag from metallurgical and chemical production
Source: "GOST 25137-82* (CT SEV 5445-85). Non-rock building materials, dense gravel and sand from industrial waste, porous fillers for concrete. Classification"
(introduced by the Decree of Gosstroy USSR dated December 31, 1981 No. 291)