Scientific and Societal Issues Involved in Developing Sustainable Cements

The Portland Cement Manufacturing Industry is under close scrutiny these days because of the large volumes of carbon dioxide emitted in the manufacture of Portland cement clinker. This paper examines the practicality of replacing Portland cements with alternative cements that could help reduce the global carbon dioxide emissions related to cement manufacture. Today the cement industry is responding rapidly to the perceived societal need for reduced carbon dioxide emissions by increasing the production of blended Portland cements, using supplementary cementitious materials that are principally derived from industrial by-products such as blast furnace slags and coal combustion fly ashes. The supplies of such by products of suitable quality are limited, so more radical solutions to the problem may ultimately be needed. This paper shows that the most promising alternative systems currently appear to be those based at least in part on calcium sulfates, the availability of which is increasing.

Language

  • English

Media Info

  • Media Type: Print
  • Features: References; Tables;
  • Pagination: pp 446-458
  • Monograph Title: Role of Cement Science in Sustainable Development

Subject/Index Terms

Filing Info

  • Accession Number: 01004172
  • Record Type: Publication
  • ISBN: 0727732463
  • Files: TRIS
  • Created Date: Sep 6 2005 1:59PM