EFFECT OF GRADING MODULUS ON COMPACTION BEHAVIOUR OF SAND-CEMENT MIXES

This paper reports an Indian investigation of the effects of 'grading modulus' (GM) on the compaction behaviour of sand-cement mixes. It first reviews some of the relevant literature. Specific types of Indian sand and cement were used in the experiments. The following tests were conducted according to the Indian Standard Code of Practice on sand-cement mixes: (1) grain size analysis, using a standard set of sieves; and (2) the I.S. light compaction test, to determine the optimum moisture content (OMC) and maximum dry unit weight corresponding to six grades of sand-cement mixes. Examples of graphs are given for: (1) moisture content against dry unit weight for sand GM 15; (2) variation of OMC with cement content; (3) variation of maximum dry unit weight with cement content; and (4) variation of OMC with equivalent GM (EGM). It was found that: (1) the OMC for a sand-cement mix decreases with an increase in sand GM for a given % of cement content; and (2) the maximum dry unit weight for a sand-cement mix increases with cement content. An empirical equation is given for the OMC of a sand-cement mix as a linear function of the logarithm of its EGM.

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  • Corporate Authors:

    Indian Roads Congress

    Jamnagar House, Shahjahan Road
    New Delhi,   India  110 011
  • Authors:
    • NARASIMHA RAO, A V
    • RAVINDRA KUMAR, V
  • Publication Date: 1995-2

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 5-9
  • Serial:
    • Indian Highways
    • Volume: 23
    • Issue Number: 2
    • Publisher: Indian Roads Congress
    • ISSN: 0376-7256

Subject/Index Terms

Filing Info

  • Accession Number: 00720021
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Apr 26 1996 12:00AM