Performance of Cement Paste Partially Replaced by Micronized Sand

Micronized sand is made by selected quartz sand and is purified both mechanically and chemically after extraction. If micronized sand can partially replace Portland cement without significant loss of the performance, it can be expected that this substitution not only reduces the cost but also the emission of CO2. In that case, this material can be used in the cement industry to produce environment friendly products. Porosity and permeability are generally considered as decisive factors with regard to the durability of concrete. This study will focus on how the presence of the micronized sand in cement paste changes the porosity and influences water permeability of cement paste. By means of mercury intrusion porosimetry measurements the pore structure of different specimens of hardened cement paste with or without micronized sands has been studied. Parameters including the amount and fineness of micronized sand and the curing time are used. The results show that the presence of micronized sand in the material will influence the porosity and water permeability. The results can provide the knowledge for producing tailor-made concrete with the cement partially replaced by micronized sand.


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; References; Tables;
  • Pagination: pp 1551-1558
  • Monograph Title: Concrete under Severe Conditions: Environment and Loading. Proceedings of the 6th International Conference on Concrete Under Severe Conditions (CONSEC'10), Merida, Yucatan, Mexico, 7-9 June 2010

Subject/Index Terms

Filing Info

  • Accession Number: 01447003
  • Record Type: Publication
  • ISBN: 9780415593168
  • Files: TRIS
  • Created Date: Sep 21 2012 5:08PM