Investigation on Stabilization of Black Cotton Soil Using Waste Paper Sludge Ash as Additive

Abstract

Soil stabilization is one of the highly concentrated areas of pavement construction on black cotton (BC) soil. In the present investigation, the BC soil was considered and an effort was made to determine the optimum dosage stabilizer. In this study, an innovative industrial waste which is one of sources of environmental pollution and degradation i.e., Waste Paper Sludge Ash (WPSA) was utilized and added as a stabilizer and its efficiency of stabilizing the black cotton soil was investigated. The percentages of WPSA incorporated were 3%, 6%, 9% and 12% respectively. From the detailed investigation on various soil characteristic properties like Atterberg limits, Compaction test, Unconfined compressive test and CBR test, WPSA content of 9% was found to be optimum and thus this innovative material may be recommended for BC soil stabilization in resulting cost effective and environmental friendly outcome.