Effect of pH on Compressibility Behaviour of Cement Treated Soil

Volume 8 Issue 1 December - February 2018

Research Paper

Effect of pH on Compressibility Behaviour of Cement Treated Soil

B. Bhavana *, T. Vamsi Krishna**

*-** PG Student, Department of Civil Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, India.

Bhavana, B., and Krishna, V, T. (2018). Effect of pH on Compressibility Behaviour of Cement Treated Soil. i-manager’s Journal on Civil Engineering, 8(1), 24-34. https://doi.org/10.26634/jce.8.1.14009

Abstract

To enrich the performance of structures, the stability of underlying soils must be checked. The stability of soil may change due to the discharge of pollutants into water bodies without adequate treatment, which causes momentous changes in the behavior of water, further leading to changes in the pH of water. In the present study, the black cotton soil has been treated with Ordinary Portland Cement (OPC) of 53 Grade and Portland Slag Cement (PSC) with different percentages (3%, 6%, and 9%), and laboratory tests such as Atterberg limits, Compaction, Unconfined Compressive Strength (UCS),California Bearing Ratio (CBR) and Consolidation have been performed. This paper attempts to assess the effect of pH (pH=5, pH=7, pH=9) levels on curing time (7, 14 and 28days) and behavior of cement treated soil. Tests results have shown that there is an increase in Optimum Water Content (OMC) which leads to decrease in Maximum Dry Density (MDD). The UCS and CBR strengths of soil got increased due to the addition of cement, besides that there is a reduction in the compressibility with the addition of cement content which were cured for ages (7, 14 and 28 days).