Demonstrating of Desiccation Crack Improvement in Clay Soils | Original Article

ABSTRACT:

Many constructions work done by using fine grained soils; are affected by the changes in the mechanical properties of the soil because of cracking Hydraulic conductivity is also affected by the Desiccation cracking in the clayey soils. Compacted clay liners are considered as very important part of waste landfills. The leakage tends to take place if less hydraulic conductivity is found. It is observed that the hydraulic conductivity tends to rise in the wet soil after cracking. The overall performance of the landfills gets affected by the Desiccation of landfill clay liners. Shrinkage in the cracks also takes place because of the desiccation process. Moisture tends to migrate into the landfill through cracks which ultimately increases the efficiency of the soil and ground water contamination. Some of the studies suggest that above the clay liner, the surface moisture should be used. It is observed that the repeated cycles tend to form the desiccation cracks. It is also noticed that the desiccation cracking in compacted clay can be reduced by using fibres. An attempt is therefore done to study the formation of cracks in clay liner materials and to control the desiccation cracks by using arbitrarily dispersed distinct fibres.