Non-firing materials using clay soils

Abstract

This paper is concerned with the creation of non-firing technologies for strengthening clay soils in places with high groundwater level. The procedure for predicting the properties of composites by the activity of the surface of the fillers, carried out using modern diagnostic methods developed by the authors, has shown the effectiveness of its application on construction sites in the Voronezh region when building road bases and strengthening soils for buildings and structures. Using the defrosting effect on the construction site allows one to extend the seasonality of work on roads and construction sites and improve the quality of soil preparation due to the increased dispersion of unfrozen clay. The increase in the deformation modulus and strength of soil foundations was measured to be 2–3 times, as well as the decrease in porosity and the increase in soil density by 1.25 times, the decrease in moisture concentration over time due to the ability of the slag block to absorb moisture from the soil for a long time. Strengthening the soil by the broken stone materials formed during the demolition of buildings and structures allows one to create reliable homogeneous soil bases at construction sites in difficult hydrogeological conditions.