Benefaction of concrete and aggregate using calcium phosphate

Details Benefaction of concrete and aggregate using calcium phosphate Benefaction of concrete and aggregate using calcium phosphate

1987-07-14

1989-02-07

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 1412, C04B 1400

Patent

active

048029238

ABSTRACT:
A phosphate additive, such as apatite or monocalcium phosphate monohydrate, is used to treat concrete aggregate and concrete to improve its resistance to natural and salt induced breakdown. The phosphate can also be used in association with road salt to prevent spalling and breakdown of concrete surfaces and damages to cars. Used alone as a surface treatment, it has the same effect.

REFERENCES:
patent: 1296467 (1919-03-01), Blumenberg, Jr.
patent: 2048932 (1936-07-01), Hartvedt
patent: 3087825 (1963-04-01), Meier-Grolman
patent: 3887488 (1975-06-01), Scott et al.
patent: 3973056 (1976-08-01), Fessler et al.
patent: 4000076 (1976-12-01), Bodine et al.
patent: 4054460 (1977-10-01), Buchet et al.
patent: 4072533 (1978-02-01), Barrall et al.
patent: 4168983 (1979-09-01), Vittands et al.
patent: 4605572 (1986-08-01), Omata et al.

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