| 摘要 |
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 |
