COMPOSITION FOR MAKING POROUS AGGREGATE Russian patent published in 2016 - IPC C04B14/24 C04B20/06 C04B38/00 

FIELD: construction.

SUBSTANCE: invention relates to production of construction materials, particularly to production of porous aggregates based on liquid glass, meant for making light concrete, as well as fill insulations. Composition for making porous aggregate contains, wt%: liquid sodium glass with density of 1.41 g/cm³ 50-75, sodium chloride ground to particle size less than 0.3 mm 1-3, burnt rocks, ground to passage through sieve 0.14 mm, 12-34, nepheline sludge wastes ground to passage through sieve 0.14 mm with content of oxides, wt%: SiO₂ - 31.9, Al₂O₃+TiO₂ - 5.8, Fe₂O₃ - 4.3, CaO - 55.7, MgO - 1.4, R₂O - 1.8, SO₃ - 0.5, 10-15.

EFFECT: technical result is increased compression strength and softening coefficient of porous aggregate, recycling industrial wastes.

1 cl, 4 tbl