COMPOSITION FOR THE ARRANGEMENT OF FUNCTIONAL LAYERS OF THE ROADBED Russian patent published in 2021 - IPC E01C7/10 C04B28/18 

FIELD: road construction.

SUBSTANCE: invention relates to road construction and can be used to create functional layers of the roadbed by complex strengthening of local soils in the construction of roads and railways. The invention is aimed at improving the physical and mechanical characteristics of the composition for arranging functional layers of the roadbed due to the use of a complex binder obtained by joint grinding of Portland cement clinker and additives of various functional purposes and the qualitative introduction of the polymer component into its composition. The composition for the arrangement of functional layers of the roadbed contains soil, binder and water. In this case, the soil is used in the form of loam with a plasticity index under 12, the binder is used in the form of a complex binder obtained by joint grinding of Portland cement clinker, gypsum, anionic oligomer such as Melment F10 additive, wollastonite, active silica with a specific surface area of 450 m2/kg with a ratio of materials 17:1:0.2:1.7:0.1; at the following ratio of the components of the composition, mass percentage: loam 72-76, complex binder 8-10, water the rest.

EFFECT: better physical and mechanical characteristics of the composition for arranging functional layers of the roadbed.

1 cl, 1 tbl