| abstract |
FIELD: building materials, concrete mixtures. SUBSTANCE: complex addition has, %: sodium salt of sulfonated condensation product waste in phenol production based on cumenephenol and dimers of α-methylstyrene with formaldehyde 10.0-79.99; sodium sulfate 20.0-85.0, and n-butyl alcohol polyhydroxypropylene ester or polymethylsiloxane liquid 0.01-5.0. Properties: crack-resistance coefficient of concrete with addition is up to 0.95; shrinkage deformation of concrete - up to 1.1 mm/m ((×10 -5 )); concrete strength is up to 36.5 MPa, and mobility of concrete mixture is 23 cm. EFFECT: enhanced quality and properties of concrete. 1 tbl |