Geomechanics and Engineering

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Stabilization of expansive soil using industrial wastes

  • Mohanty, Soumendra K. (Department of Civil Engineering, Veer Surendra Sai University of Technology) ;
  • Pradhan, Pradip K. (Department of Civil Engineering, Veer Surendra Sai University of Technology) ;
  • Mohanty, Chitta R. (Department of Civil Engineering, Veer Surendra Sai University of Technology)
  • Received : 2015.12.15
  • Accepted : 2016.09.22
  • Published : 2017.01.25
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Abstract

Swelling and shrinkage characteristics of expansive fine grained soil cause volumetric changes followed by distress and damage to the structures. Soil stabilization can be explained as the alteration of the soil properties by chemical, mechanical or any other means in order to enhance the engineering properties of the soil. Utilization of industrial wastes in soil stabilization is cost effective and environment friendly. This paper presents an experimental study on stabilization of expansive soil using industrial wastes, viz. fly ash and dolochar. The paper includes the evaluation of engineering properties like unconfined compressive strength and California bearing ratio (CBR) of expansive soil collected from Balasore district of Odisha stabilized with fly ash and dolochar in different proportions and to predict the influence of these additives on engineering properties and strength characteristics of expansive soil. Both fly ash and dolochar were found to increase the CBR and decrease many index properties such as liquid limit, plastic limit, plasticity index, swelling index and UCS, thus enhancing the strength parameters of expansive soil.

Keywords

References

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