Concrete accelerators

Details Concrete accelerators Concrete accelerators

1996-06-28

1999-12-07

Marcantoni, Paul

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106724, 106727, 106819, 106823, C04B 2412

Patent

active

059976306

ABSTRACT:
An accelerating admixture for use with spraying cementitious compositions such as shotcrete comprises (a) a compound selected from aluminium hydroxide, aluminium hydroxysulphate and mixtures thereof, and (b) an acidic substance which essentially does not react with the compound. The preferred acid substances are organic acids.

REFERENCES:
patent: 4296006 (1981-10-01), Bugdahl et al.
patent: 4507154 (1985-03-01), Burge et al.
patent: 5051130 (1991-09-01), Futami et al.
patent: 5453123 (1995-09-01), Burge et al.
patent: 5753037 (1998-05-01), Drs et al.
Derwent Publication XP002077176 and SU 1 509 344 A dated Sep. 23, 1989.
Chemical Abstracts, vol. 104, No. 22, Jun. 2, 1986 JP 6114161 (Jan. 22, 1986).
Derwent Publication 94-183962, of AU 930047466 (Sep. 20, 1993).
"Increasing the Strength of High Alumina Cements" Szilikatip Szilikatted Kerf (Eloadisik), 13.sup.th vol. 3 p 151-6 Kuznetsova et al. 1981.

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