Aerated inorganic polymer compositions and methods of making same

摘要

Inorganic polymer compositions and methods for their preparation are described herein. The compositions include the reaction product of a reactive powder, an activator, and optionally a retardant in the presence of water and an aerating agent. The reactive powder includes 85% or greater fly ash. The aerating agent can be a blowing agent, a foaming agent, or a mixture of these. Also described herein are building materials including the compositions.

主权项

1. An inorganic polymer composition, comprising the reaction product of:
reactive powder comprising 85% or greater fly ash, and an 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, and wherein the aerating agent is present in an amount of from 1% to 8%, by weight of the reactive powder.