oa Civil Engineering = Siviele Ingenieurswese - The influence of aggregates on the compressive strength and elastic modulus of concrete

Volume 34, Issue 5
  • ISSN : 1021-2000



Descriptions are given of the performance characteristics of concrete made with 13 different aggregate types commonly used in South Africa. These aggregates were used to make an extensive series of concrete mixes, covering a broad range of strengths and tested at ages up to six months. Differences in strengths attributable to changes in the type of aggregate used were investigated and found to be generally small, but in some cases amounted to as much as 10 MPa to 15 MPa. For some applications of concrete these differences could be technically and/or economically significant.

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