Subgrade characteristics of soil mixed with foundry sand and randomly distributed steel chips

Foundry sand is a waste material imposing hazardous effects on the environment and human health. It cannot be disposed of properly and its disposal is not economically viable. The inherent properties of foundry sand can be used to make this material environmentally friendly in terms of solving the problem of its disposal. Similarly, steel chips are industrial wastes which can be reused. This paper discusses the improvement of compaction and subgrade characteristics of clayey soil by blending it with foundry sand and randomly distributed steel chips. The influence of different mix proportions of clayey soil and foundry sand on compaction characteristics and California Bearing Ratio (CBR) values has been studied. The results show that with the addition of foundry sand in sandy clayey soil, the maximum dry density (MDD) and CBR value of the mixture increase initially, and with further addition of foundry sand, the MDD and CBR values of mixture start decreasing. Similar results were obtained with the inclusion of steel chips in selected soil-foundry sand mixture. The designated mix with optimum percentage of clayey soil, foundry sand and steel chips can be effectively used in the construction of subgrade of roads and embankment, thus presenting a solution to construct good roads at low cost.

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  • Supplemental Notes:
    • Abstract reprinted with permission from the publisher.
  • Authors:
    • Sharma, R K
  • Publication Date: 2014-4


  • English

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 9-16
  • Serial:
    • Indian Highways
    • Volume: 42
    • Issue Number: 4
    • Publisher: Indian Roads Congress
    • ISSN: 0376-7256

Subject/Index Terms

Filing Info

  • Accession Number: 01523953
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 29 2014 7:33PM