A STUDY ON BEHAVIOUR OF CLAY SOIL WITH ADDITION OF CHOLINE CHLORIDE

Abstract

Soil is one of the nature’s most abundant construction materials. Almost all type of construction is built
with or upon the soil. Generally clayey soil has low strength. It is normally replaced with stronger soil material so as
to improve the strength but this is not advisable due to constraints. In this project the strength of soil is increased by
chemical stabilization by adding choline chloride chemical instead of replacing with stronger soil. The process of soil
stabilization refers to changing the properties of soil in order to improve its strength, durability, or other qualities. In
chemical stabilization, soil is stabilized by adding different chemicals. The main advantage of chemical stabilization is
that setting time and curing time can be controlled. Chemical stabilization includes the use of chemicals as
compaction aids to soils, as binders and water repellents, and as a means of modifying the behaviour of clay. It also
includes deep mixing and grouting. The initial strength of the soil is determined by conducting soil tests such as free
swell index, specific gravity test, sieve analysis, plastic limit, liquid limit, shrinkage limit, IS Heavy compaction test
and unconfined compression strength tests. The results obtained are then compared with the soil treated with 0.3%,
0.5%, 0.7% and 0.9% choline chloride (from reference 1).