An experimental program is described which explored the extent to which abrasion resistance can be increased through new technology using silica fume addition, water/cementitious ratio, and coarse aggregate type as variables. The details of the experiments are described, and the results are discussed. The findings show that coarse aggregate is the most important factor affecting concrete abrasion resistance measured by ASTM C-779-82. Water/cementitious ratio ranks second in importance. The abrasion resistance of concrete is strongly influenced by the relative abrasion resistance of its constituent coarse aggregate and mortar. However, when the coarse aggregate and mortar have nearly same abrasion resistance, the concrete can present serious skidding or slipping problems when wet due to fairly uniform surface wear. Also, very low W/C can make the concrete nearly as abrasion resistant as high-performance rocks.

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  • Accession Number: 00603431
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 28 1991 12:00AM