International Journal of Earth Sciences and Engineering

Darga Kumarn ¹, Ravikant R. Singh ¹

Affiliations
1 School of Building and Civil Engineering, CEST, Fiji National University, Fiji Islands, FJ

Abstract

The large ground displacements caused by loess or collapsing soils can totally destroy roads and structures. In this study, a controlled Oedometer testing is carried out to understand the collapse potential (CP) of loess soil samples prepared at different dry unit weights and admixed with cement proportions 0%, 2%, 4%, 6%, 8% and 10%. When compared to the untreated soil, the reduction in CP is about 35% for the sample prepared at 11 kN/m³ dry unit weight and 200 kPa stress level and for cement proportion of 8% and initial water content of 2%. But for the similar conditions and for cement proportion of 8% and initial water content of 4%, the reduction in collapse potential is observed about 95%. From the results, it can be revealed that CP of loess soil can be controlled with the process of pretreatment.

Keywords

Loess Soil, Void Ratio, Collapse Potential, Cement, Dry Unit Weight.

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