COMPOSITION FOR ROAD PAVEMENT BASES LAYERS DEVICE Russian patent published in 2020 - IPC E01C3/04 C04B28/04 

FIELD: construction.

SUBSTANCE: invention relates to road construction and can be used for arrangement of base layers of pavement for roads and railways. Composition for pavement bases layers device contains sand from 0–5 mm fraction crushing screenings; dry entrainment fly ash; mineral binder - portland cement with mineral additives; polymer composite in the form of a colloidal solution of high-molecular weight surfactants: poly(1-carbamoylethylene) and products of hydrolysis of polyvinyl acetate, with the following ratio of components, wt. %: sand from crushing screenings - 50–60; flue ash - 20–10; portland cement 10–7; polymer composite 0.5–0.9 (over 100 %); water - 20–23.

EFFECT: technical result is obtaining cost-effective road construction material based on wastes of crushing rocks and wastes of heat power engineering with optimum physical and mechanical characteristics with low content of binder, which will expand raw material base for road construction.

1 cl, 1 tbl