Additive for, method of adding thereof and resulting cured cement-type concreations for improved heat and freeze-thaw durability
OwnerWilliam W. Suppleeinventor
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Abstract
An additive for, a method of adding thereof to uncured mixes for and resulting cured cement-type concreations such as cured embodiments of concrete, marcadam, and roof-top shingles each exhibiting improved heat and freeze-thaw durability resulting from reduced efflorescence and stability against sun ultraviolet light exposure.
Claims94
An anti efflorescence cementitious additive comprising in combination chemically different compounds "a)" and "b)" compound "a)" including at least one particulated polymer having particles sizes of about 0.01 angstroms to about 10,000 angstroms, and compound "b)" including at-least one hydrophobic compound.
A cementitious additive composition for reducing efflorescence and improving durability of cementitious composition comprising (a) about 5 to about 75 weight percent of at least one particulate polymer compound selected from the group consisting of polyepoxide, styrene butadiene, polyvinyl acetate, acrylonitrile-butadiene latex rubber, polyacrylic ester, polyvinylidene chloride-vinyl chloride, polyethylene-vinyl acetate, acrylic latex,. calcium stearate, ethylene-vinyl acetate, polyacrylic ester, polyurethane, and acrylic latex, and (b) at least one hydrophobic compound, wherein the particulated polymer has a size ranging from about 0.01 angstroms to about 10,000 angstroms.
Dependencies are inferred from the claim text.