COMPACTION CHARACTERISTICS OF A-6 LATERITIC SOIL - RIVER SAND MIXTURE

Abstract

ABSTRACT Soil sample collected from Gidan Kaji Village, Niger State was classified as A-6 soil by American Association of State Highway & Transportation Officials (AASHTO) and clay of low plasticity (CL) by Unified soil Classification System (USCS), was mixed with River sand collected from a construction site. Strength properties of the mixture were investigated at Modified AASHTO energy level. The sand were mixed at 0,5, 10, 15,20, 25 .......... and 100% of river sand each by weight of the lateritic soil. Results showed that the Maximum Dry Density CMDD) iricreases from 0% at 1.935g1cm3 to 95% at 2.085g/cm3 . the percentage increase is 7.2%. While the Optimum .Moisture Content COMC) decreases with increasing river sand as from 0% at 12.8% to 85% at 10.7%. the average percentage decrease in 9MC is 23.64~o. ' Vll