C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/1, 6/225, 40
C08L 81/04 (2006.01) C04B 28/36 (2006.01) C08K 3/06 (2006.01)
Patent
CA 1182944
ABSTRACT OF THE DISCLOSURE Novel sulphur cement pre-mixes and sulphur cement and concretes derived therefrom are provided. They contain in addition to the sulphur, a bonding agent which is adapted to stabilize the sulphur cement or sul- phur concrete against progressive embrittlement and mechanical failure un- der thermal or physical stress, the bonding agent being either a viscosity increasing, surface active, finely divided solid inorganic agent, of a size passing through a screen having a sieve opening of 0.147 mm and which is fly ash, dolomite, pulverized limestone and a mixture of pyrites and pyrrhotite, preferably being fly ash, or liquid olefinic hydrocarbon poly- mer material preferably derived from petroleum and having a non-volatile content greater than 50% by weight and a minimum Wijs iodine number of 100 cg/g either as such or in a form prereacted with sulphur, or a mixture of such inorganic particulate stabilizer and such organic stabilizer. Novel sulphur concretes are also provided, which are made from such sulphur cement and conventional natural or manufactured aggregates. These sulphur cements do not suffer from the progressive embrittlement and mechanical failure under thermal or physical stress, of the heretofore provided con- ventional sulphur cements.
251362
Borden Ladner Gervais Llp
Buchanan (g.d.) Professional Corporation
Pearce (albert F.) Professional Corporation
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