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Composite foamable cements

  • US 4,116,703 A
  • Filed: 09/30/1977
  • Issued: 09/26/1978
  • Est. Priority Date: 09/30/1977
  • Status: Expired due to Term
First Claim
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1. An inorganic cement mixture, capable of being foamed, and consisting essentially of, in percent by weight, 8-20% crystalline hydraulic cement, 22-35% of a hydraulic cement in the form of a silicate glass powder, and 45-70% of quaternary ammonium silicate solution.

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