Heat-curing cement composition, method of hardening same, and ha

Details Heat-curing cement composition, method of hardening same, and ha Heat-curing cement composition, method of hardening same, and ha

1989-06-21

1990-10-23

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106 89, 106103, 106707, 106715, 106735, 106782, 106789, C04B 706

Patent

active

049649124

ABSTRACT:
A heat-curing cement composition comprising 60 to 75% by weight of 3CaO.SiO.sub.2, in which the total content of 3CaO.Al.sub.2 O.sub.3 and 4CaO.Al.sub.2 O.sub.3.Fe.sub.2 O.sub.3 is lower than 10% by weight, the alkali content is lower than 0.2% by weight as the Na.sub.2 O equivalent, the balance is composed mainly of 2CaO.SiO.sub.2 and gypsum, and the Blain specific surface area is 3500 to 5500 cm.sup.2 /g. This cement composition provides a hardened body when heat-cured under a high temperature of 35.degree. to 85.degree. C.

REFERENCES:
patent: 3447937 (1969-06-01), Hersey et al.
patent: 4028126 (1977-06-01), Mori et al.
patent: 4230499 (1980-10-01), Nakagawa et al.
patent: 4451295 (1984-05-01), Sprouse

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