Electropositive bivalent metallic ion unsaturated polyester complexed polymer concrete
AssigneeThe United States of America as represented by the United States Department of Energy
InventorsToshifumi Sugama, Lawrence E. Kukacka, William H. Horn
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Abstract
Quick setting polymer concrete compositions with excellent structural properties are disclosed; these polymer concrete compositions are mixtures of unsaturated polyesters and crosslinking monomers together with appropriate initiators and promoters in association with aggregate, which may be wet, and with a source of bivalent metallic ions.
Claims6
A water compatible polymer concrete composition which will achieve compressive strengths greater than 2000 psi within one hour after mixing over a temperature range of from -5.degree. C. to 40.degree. C. comprising based on the total weight of the composition, the following components:
- (a) from 8% to 20% of a polyester composition which contains an unsaturated polyester, from 30% to 60% by weight, based on the total weight of the polyester composition, of a vinyl crosslinking monomer, and from 0.02% to 5.0% by weight, based on the total weight of the polyester composition, of a promoter selected from the group consisting of cobalt napthenate, dimethyl aniline, mixtures thereof,
- (b) a minor proportion, up to 5% by weight, of a free-radical initiator for curing the polyester and the crosslinking monomer,
- (c) from 60% to 80% of an aggregate system composed of silica sands or silica sands mixed with limestone and/or crushed stone,
- (d) from 0.75% to 10% water, and
- (e) the balance Portland cement which will release calcium ions into an aqueous system,
- said composition polymerizing to produce a polymer concrete.
Dependencies are inferred from the claim text.