Non-efflorescing cementitious bodies

Details Non-efflorescing cementitious bodies Non-efflorescing cementitious bodies

2005-08-02

2005-08-02

Green, Anthony J. (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C106S692000, C106S694000, C427S397700, C428S703000

Reexamination Certificate

active

06923857

ABSTRACT:
A non-efflorescing cementitious body is formed from sources of calcium aluminate, calcium silicate, calcium sulphate and reactive silica, these ingredients being present in such relative proportions that, upon hydration, both monosulphate (C3A.CŜ.12H) and hydrated alumina (AH3) are formed. Also disclosed is a hydraulic binder and a paste from which such bodies can be formed and a method for forming such bodies. In addition to exhibiting low efflorescence, these bodies retain satisfactory physical properties, especially good durability to natural weathering conditions.

REFERENCES:
patent: 4357166 (1982-11-01), Babcock
patent: 5366549 (1994-11-01), Imaizumi et al.
patent: 6641658 (2003-11-01), Dubey
patent: 2002/0157573 (2002-10-01), Pellett
patent: 2002/0161071 (2002-10-01), Mills et al.
patent: 61-286256 (1986-12-01), None
patent: 09-48649 (1997-02-01), None
Derwent Abstract No. 1999-562325.abstract of South Africa Patent Specification No. 9811374A (Aug. 1989).

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