FIELD: manufacture of building materials; production of light-weight concrete mixes on base of porous fillers; manufacture of concrete and reinforced concrete solid and hollow blocks for external walls of buildings.
SUBSTANCE: proposed light-weight concrete mix contains portland cement, porous filler, natural quartz sand and water; used as porous filler is burnt porous sand from silicic marl at the following ratio of components, mass-%: portland cement, 21.8-47; natural quartz sand, 0-47; sand from silicic marl, 10.2-41; the remainder being water.
EFFECT: reduced density and heat conductivity of finished articles at retained strength.
1 tbl, 2 ex
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