Demolition facilitating agent

Details Demolition facilitating agent Demolition facilitating agent

1985-04-24

1986-08-05

Metz, Andrew H.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 90, 106109, 106111, 106118, C04B 704

Patent

active

046041435

ABSTRACT:
A demolition-facilitating agent for durable structures, for example, concrete structures and rocks, comprises (A) 100 parts by weight of a mixture in the form of fine particles, consisting essentially of (1) 90 to 99% by weight of a clinker consisting of (a) 15 to 97% by weight of free CaO crystals, (b) 3 to 85% by weight of free 3CaO SiO.sub.2 crystals and (c) 0 to 10% by weight of an inevitable impurity, the clinker having been produced at a sintering temperature of 1200.degree. C. or more, and (2) 1 to 10% by weight, in terms of gypsum anhydride (CaSO.sub.4), of at least one gypsum compound; and (B) 0.4 to 4 parts by weight of a cement water-reducing agent.

REFERENCES:
patent: 3884710 (1975-05-01), Allen et al.
patent: 3947288 (1976-03-01), Kawano et al.
patent: 4076546 (1978-02-01), Simeonov et al.
patent: 4316583 (1982-02-01), Kawano et al.
patent: 4378997 (1983-04-01), Kasama et al.
patent: 4508574 (1985-04-01), Kurandt et al.

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