Strength Characteristics of Clayey Soil Stabilized with Brick Kiln Dust and Sisal Fiber

Abstract

AbstractConstructing structures over soils possessing poor geotechnical characteristics is a challenging task for civil engineers. The present study is focused on improving the geotechnical properties of clayey soil using brick kiln dust and sisal fiber so as to use it as a sub-grade material. Various percentages of both the materials, i.e., brick kiln dust varying from 10 to 30% and sisal fiber varying from 0.5 to 1% have been used to perform Atterberg’s limits, compaction, and California bearing ratio tests. It was revealed that the addition of brick kiln dust to clayey soil reduced liquid limit. The addition of 20% brick kiln dust along with 1% sisal fiber gave maximum dry density value. The California bearing ratio value was improved by adding optimum amount of both the materials to clayey soil. This ensures that the combination of brick kiln dust (20%) and sisal fiber (1%) to stabilize poor soils is cost-effective and eco-friendly.KeywordsBrick kiln dustSisal fiberConsistency limitsCompactionCalifornia bearing ratio