Methods for producing laboratory samples of soils reinforced with inorganic binders

Abstract

The article discusses the methods for producing laboratory samples of soils reinforced with inorganic binders. In the Russian Federation, production of laboratory samples of reinforced soils is regulated by SS 23558-94 “Road and airfield construction mixtures of black stone, gravel-sand and soils reinforced with inorganic binders. Technical conditions (with amendments No 1, 2) and SS “Public roads. Soils reinforced with inorganic binders. Specifications”. These documents describe two approaches to sample production: the impact method and the static load method. The article studies the application of these methods in the laboratory conditions. It was found that the impact method has a number of drawbacks that distort physical and mechanical characteristics of reinforced soils. It was found that the static load method is the most accurate and less labor intensive. The use of cylindric forms for producing samples of reinforced soil simplifies the production process and improves geometric characteristics of the samples.