Low density cellular concrete with accelerators for rapid hardening
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United States of America Patent
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Nov 26, 2002
Grant Date -
N/A
app pub date -
Mar 2, 2001
filing date -
Mar 3, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Compositions and methods are provided for creating a low density cellular concrete that has a viscosity which rapidly increases after adding an accelerator, while maintaining substantially the same density. The initial components include a cement, water, a surfactant to create a foam, and an accelerator such as sodium carbonate. The accelerator serves to rapidly increase the viscosity of the mixture, thereby entrapping the foam or air within the matrix of the mixture before air can escape. An additional embodiment includes using a byproduct such as fly ash in the composition to further reduce costs and make an environmentally friendly product.
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