Process for manufacturing concrete of high corrosion resistance

Details Process for manufacturing concrete of high corrosion resistance Process for manufacturing concrete of high corrosion resistance

1982-09-30

1984-09-25

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

C04B 702

Patent

active

RE0316822

ABSTRACT:
Concrete having high resistance to corrosion is prepared by using low aluminate (C.sub.3 A) cement, preferably having less than 5 weight percent of aluminate, and, in addition to conventional concrete constituents, at least 10 weight percent of finely divided, reactive silica based on the cement weight.
A highly corrosion resistant cement composition comprises, in addition to conventional cement constituents, 70-90 parts by weight of low aluminate cement and 10-30 parts by weight of reactive silica.
An additive useful for making concrete highly corrosion resistant comprises 80-90 weight percent of reactive silica, 0-10 weight percent of low aluminate cement, 3-8 weight percent of formaldehyde condensed sodium sulfonate, 3-8 weight percent of lignosulfonate.

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patent: 3995086 (1976-11-01), Plunguian et al.
patent: 4036839 (1977-07-01), Plunguian et al.
patent: 4088808 (1978-05-01), Cornwell et al.
patent: 4310486 (1982-01-01), Cornwell

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