NEW CEMENT USES FLY ASH, COSTS LESS TO MAKE

A new cement material is described which incorporates some 70 percent of fly ash, is superior to portland cement on a number of counts, generates considerably less pollution during production, and is cheaper to make. The new material is made by heating a mixture of 40 parts of fly ash and 60 parts limestone to 1430 deg. c, and rapidly quenching the melt in cold water. The resulting solid, crushed to a very fine powder and mixed with additional fly ash, is tradenamed LTM (Lient Trief Mixed). LTM 300 is considered a direct counterpart of the P 300 grade of portland cement, and LTM 400 is equivalent to the higher P 400. LTM cures more rapidly than conventional cements, generates less heat during curing, has superior resistance to sea water, and has an extended shelf life.

  • Corporate Authors:

    American Chemical Society

    1155 16th Street, NW
    Washington, DC  United States  20036
  • Publication Date: 1976-4-5

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Filing Info

  • Accession Number: 00136321
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 16 1976 12:00AM