COMPOSITE CONSTRUCTION MATERIAL Russian patent published in 2014 - IPC C04B28/02 C04B16/00 C04B111/20 

FIELD: construction.

SUBSTANCE: composite construction material comprising a cement binder, a filler, lignocellulose materials and an additive - a mixture of low molecular polyethylene and urea at the ratio of 1:1, additionally contains a non-ionogenic surfactant polyvinyl pyrrolidone at the following ratio of components, wt %: cement binder 20-30, filler 44-56, non-ionogenic surfactant polyvinyl pyrrolidone 0.5-2, lignocellulose materials 5-12, mixture of low molecular polyethylene and urea at the ratio of 1:1 0.5-3.5, water - up to 100.

EFFECT: development of a composite construction material to manufacture concrete products, making it possible to increase compressing strength, cone slump, tensile strength in bending, elasticity modulus and to reduce water absorption.

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