Shrinkage Parameters of Modified Compacted Clayey Soil for Sustainable Earthworks

The shrinkage limit is one of the Atterberg limits and a fundamental geotechnical parameter used to assess settlement other volume change parameters engineering soils containing clays. This paper describes index tests results on expansive soil treated with rice husk ash (RHA) 5%, 10% 15% quicklime activated (QARHA) obtained using laboratory testing procedure. representative was subjected classification it found be high soil, an A-7-6 according American Association States Highway Transportation Officials (AASHTO) poorly graded Universal Soil Classification System (USCS). It classified as highly plastic soil. treatment exercise at rate 0% (reference), 2%, 4%, 6%, 8% addition RHA, 5%-QARHA, 10%-QARHA 15%-QARHA by weight dry RHA improved properties; varying rates ranging from 5.7%, 27.9% for respectively reference control experiment. And index, improvement also substantial i.e. 7.8% 55.7% 2% effect 5% lime (5%-QARHA) showed 6.6% 34.4% 5%-QARHA Also, (10%-QARHA 15%-QARHA) properties presented which shows that higher activation quicklime, pozzolanic performance Finally, its composites achieved process have shown alternative cementing materials use binders in modification utilized subgrade materials.