Assessment of the compressibility behaviors of some Barind Clay samples collected from Narhatta area, Bogra

Abstract

 One of the major problems of concern to the soils engineer is predicting the amount of volume change or settlement which will occur in a soil when it is subjected to stresses. The compressibility is found to be the intrinsic property of soils to evaluate settlement under a given loading. In this research, the compressibility characteristics of some Barind Clay soils of Narhatta area, Bogra are evaluated based on oedometer consolidation test. The studied soil is low to medium plasticity silt dominated clay. The consolidation test result suggests that the analyzed soils might be normally consolidated to over-consolidated in nature. The co-efficient of volume compressibility (mv) values lie between 0.0317 to 0.2414 m2/MN and the compression index (CC) values range from 0.0051 to 0.3654. Both values suggest that the studied soils are hard to plastic, low to medium compressibility in nature and having slow rate of settlement. Therefore, the studied Barind Clay soils might have good engineering mechanical properties and suitable for building foundations.