Compaction Characteristics of the Lateritic Soil-Mango Leaf Ash Admixed with Cement

Abstract

This study investigated the compaction effect of unmodified and modified lateritic soil using cement-mango leaf waste ash (C- MLWA). The lateritic soil used was classified as A-7-6 (9) and CL using AASHTO soil classification and USCS respectively. The soil was treated with a blended cement of 1%, 2 % and 6 % mango leaf waste ash by dry weight of the soil sample. Effect of cement- mango leaf ash on the modified soil was studied with respect to compaction characteristics, plasticity characteristics, particle size distribution, California bearing ratio, and unconfined compressive strength. Compactive efforts used were British Standard Light (BSL) and West African Standard and the results were examined utilizing analysis of variance (ANOVA) Method. The research shows an increase in MDD with the corresponding decrease in OMC as the percentages of cement content increase with a constant 6% mango leaf waste ash for all the tests carried out for the sample. This was due to the agglomeration of large particles (sand and gravel) consuming bigger space with a comparable drop in dry density and in light of additional moisture needed for the hydration of cement and the pozzolanic response of mango leaf waste ash.