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Aerated inorganic polymer compositions and methods of making same

  • US 8,795,428 B1
  • Filed: 10/05/2012
  • Issued: 08/05/2014
  • Est. Priority Date: 10/07/2011
  • Status: Active Grant
First Claim
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1. An inorganic polymer composition, comprising the reaction product of:

  • reactive powder comprising 85% or greater fly ash, andan activator, wherein the activator includes a citrate or citric acid, and wherein the activator further includes sodium hydroxide;

    in the presence of water and an aerating agent selected from the group consisting of blowing agents, foaming agents, and mixtures thereof,wherein the reactive powder includes 5% by weight or less of Portland cement,wherein the activator is present in an amount of from 1.5% to 8.5% dry weight, based on the weight of the reactive powder, andwherein the aerating agent is present in an amount of from 1% to 8%, by weight of the reactive powder.

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