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Alkali activated class C fly ash cement

  • US 5,565,028 A
  • Filed: 06/01/1995
  • Issued: 10/15/1996
  • Est. Priority Date: 09/10/1993
  • Status: Expired due to Fees
First Claim
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1. A cement which is denser than ordinary Portland cement, consisting essentially of stratlingite and calcium-silicate-hydrate, and either containing no ettringite, or containing ettringite in a concentration sufficiently small so as not to substantially weaken the dense microstructure of said cement as compared to the strength of the dense microstructure of an otherwise identical cement containing no ettringite.

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