Process for production of cellular concrete

Details Process for production of cellular concrete Process for production of cellular concrete

1985-05-06

1987-04-07

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Of inorganic materials

106 88, 106 95, 106314, 106315, 264234, 264347, 264DIG59, B28B 150, B28B 500, C04B 732, C04B 2210

Patent

active

046559795

ABSTRACT:
A novel process is provided for producing prefoam type cellular concrete articles, which uses a foamed slurry (E) consisting essentially of an aqueous slurry (A) of a calcium silicate-based cement compound, an aqueous slurry (B) of a calcium aluminate-based cement compound, a specific setting retarder (C), and an aqueous foamed liquid (D). The process is further characterized in that: (i) the foamed slurry (E) is cast and provided with hardened strength sufficient for demolding in 20 to 120 minutes after it has been poured into a mold; (ii) the demolded article is subjected to precuring under specific conditions of humidity, temperature and precuring time; and (iii) the molded article is then subjected to hydrothermal curing under high pressure.

REFERENCES:
patent: 427591 (1890-05-01), Martin et al.
patent: 2848340 (1958-08-01), Haldas
patent: 3615223 (1971-10-01), Burrqugas et al.
patent: 3772045 (1973-11-01), Haldas et al.
patent: 4057608 (1977-11-01), Hashimoto et al.
patent: 4190454 (1980-02-01), Yamagisi et al.

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