COMPOSITION FOR STABILISATION OF CLAY SOIL AND METHOD FOR CREATING GROUND ROADS USING THEREOF Russian patent published in 2016 - IPC E01C7/36 E02D3/12 

FIELD: construction.

SUBSTANCE: invention relates to road construction of local and ground roads, including water-logged loam and clay soils with low bearing capacity. Composition for stabilisation of clay soil contains cement, brown coal fly ash, and soluble calcium salts in following proportions, wt.%: cement, 5-50, soluble calcium salt, 1-3, brown coal fly ash, the rest. Also described is method for creating ground roads using composition for stabilisation, and minimum processing of soil for depth of 5 to 15 cm, taking into account features of clay soil and proposed stabilising composition. Calcium salt solution or suspension in amount of up to 0.6 kg/m² are added with water for soil moistening up to 16-20%, during creation of road surface. When adding inert filler, adding porous materials also suggested, and after compression and profiling, processing with polymer emulsions is suggested to impart hydrophobic properties to surface.

EFFECT: technical result is upgraded strength of ground roads owing to composition for stabilisation of soil, which has properties of regeneration, and diffusion hardening soil into depth with time, due to diffusion of soluble calcium salts.

20 cl, 2 tbl, 4 ex, 6 dwg