Geomechanics and Engineering

Techno-Press (테크노프레스)
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Using cement dust to reduce swelling of expansive soil

  • AlZubaidi, Raddi M. (Department of Civil and Environmental Engineering, Sharjah University) ;
  • AlRawi, Kawkab H. (Department of Building Engineering, University of Technology) ;
  • AlFalahi, Ahmed J. (Department of Building Engineering, University of Technology)
  • Received : 2012.07.15
  • Accepted : 2013.06.11
  • Published : 2013.12.25
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Abstract

Extensive study was carried out on Clay expansive soil. This soil was silty clay and can be classified as CH. The degree of expansion was found to range from low to medium depending on the free swell and swell pressure tests. The research investigated the effect of using cement dust on swelling potential, Atterberg Limit, linear shrinkage, and mineralogical composition of expansive soil. The results showed that the swelling potential, plasticity index, linear shrinkage, and clay minerals decrease with increasing cement dust percentage. The cement dust accumulates in huge amounts as a side product in cement factories, and the disposal of this fine dust is very difficult and poses an environmental threat.

Keywords

References

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