Laboratory Electrical Resistivity Studies on Cement Stabilized Soil

Abstract

Electrical resistivity measurement of freshly prepared uncured and cured soil-cement materials is done and the correlations between the factors controlling the performance of soil-cement and electrical resistivity are discussed in this paper. Conventional quality control of soil-cement quite often involves wastage of a lot of material, if it does not meet the strength criteria. In this study, it is observed that, in soil-cement, resistivity follows a similar trend as unconfined compressive strength, with increase in cement content and time of curing. Quantitative relations developed for predicting 7-day strength of soil-cement mix, using resistivity of the soil-cement samples at freshly prepared state, after 1-hour curing help to decide whether the soil-cement mix meets the desired strength and performance criteria. This offers the option of the soil-cement mix to be upgraded (possibly with additional cement) in its fresh state itself, if it does not fulfil the performance criteria, rather than wasting the material after hardening.

Characterization of Eggshell and Natural Chloride Stabilized Soil Using Geophysical Techniques

“…The gel bonded the soil particles and formed soil cluster those consequently resist the electric charge. The findings of the present study best suited with the results of Vincent et al [17].…”

“…Other notable findings by Vincent et al [17] used cement as a stabiliser in the soil and found an identical trend for UCS and Re at same level of cement content. Pozzolanic reaction of cement lowers the void ratio and resists the electric charge in the matrix.…”