STABILIZATION OF EXPANSIVE SOILS – EVALUATION OF THE BEHAVIOUR WITH LIME

BSTRACT
Expansive soils pose great problem to the structures found on them. When their
extent is very large the only option to cater the problem is to stabilize them. Chemical
stabilization proves to be the most suitable among the other methods. This paper gives an insight to the behavior of the expansive soil and the properties of the constituting clay mineral, and the mechanism of stabilization with lime. The cyclic behaviour of the expansive soil is also important when the stabilization is carried out, as the longevity
of the chemicals is necessary for the long-term stabilizing effect. The paper gives a brief account of the cyclic behaviour and the laboratory methods to assess it. It gives a reasonable exposure in terms of geotechnical practice