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US 6,833,188 B2Granted
Lightweight cementitious composite material
OwnerBlaine K. Semmensinventor
Life of this patent
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Abstract
A lightweight cementitious composite material includes expanded synthetic polymer particulate having a particle size of between 0.0625 and 0.5 inches. A dispersant coating on said particulate suppresses electrostatic attraction between particulate particles. A matrix surrounds the particulate and is present from 0.25 to 1 pound per gallon of dispersant coated particulate.
Claims13
A structure produced from a composite material comprising:
- an expanded synthetic polymer particulate having a particle size between 0.0625 and 0.5 inches;
- a dispersant coating of polyvinyl alcohol on said particulate so as to suppress electrostatic attraction therein;
- a matrix material of magnesium oxy-chloride cement surrounding said particulate, said matrix material is present from 0.25 to 1 pound per gallon of said particulate.
Dependencies are inferred from the claim text.