Effect of Initial Placement Conditions on Swelling Characteristics of Expansive Soils

This paper discusses the use of "compaction control" for controlling swelling behavior of the expansive clays in Nandipur (North Eastern part of Pakistan). A highly plastic and swelling clay. The problem of the expansive soil of Nandipur came into picture during geotechnical investigation in this area for a proposed road. The effect of compaction control on the swell potential was investigated for suggesting a cheap remedial measure for the expansive soil encountering the road in Nandipur region. Soil samples from the site were compacted at various compaction energies and at various moisture contents and then tested for free swell and swell pressure. Finally, the best range of moisture content and compaction energies were suggested for the Nandipur soil that gave the minimum swell potential