AUTOCLAVE ASH FOAM CONCRETE Russian patent published in 2018 - IPC C04B38/10 

FIELD: construction materials.

SUBSTANCE: invention relates to construction materials and can be used to make articles in industrial and vehicle construction. Autoclave ash foam concrete made of a mixture comprising, in % by weight: portland cement 25.81–28.19, lime 10.80–11.06, sand with specific surface area S_sp = 200 m²/kg in slurry form 18.20–19.00, ashes from incineration of sewage sludge with specific surface area S_sp = 200–300 m²/kg 6.07–6.33, foam-forming additive "Neopor" 0.342–0.350, polyvinyl acetate emulsion 0.008–0.010, water 36.39–37.44.

EFFECT: technical result is a decreased sorption humidity of the autoclave ash foam concrete, utilization of ash from the incineration of sewage sludge.

1 cl, 1 ex, 1 tbl