Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...
Patent
1979-11-07
1981-10-06
Poer, James
Compositions: coating or plastic
Coating or plastic compositions
Metal-depositing composition or substrate-sensitizing...
106 90, 106 97, 106 98, C04B 735
Patent
active
042933412
ABSTRACT:
Improved lightweight insulating concretes containing expanded vermiculite or perlite aggregate and of the type which are mixed and pumped to roofs of buildings and the like are described. The improved concretes are mixtures in specified proportion of cementitious binder such as Portland cement, expanded vermiculite or perlite, air-entraining agent, polyelectrolytic sulfonate dispersing agent and preferably an inert densifying particulate, which, can be cast as thin cross-section, high strength layers requiring low amounts of "in-place" water, without sacrificing necessary properties such as yield, pumpability, etc. The improved concretes are preferably used as layers over plastic foam insulation boards in the formation of sloped or non-sloped insulated roof systems constructed at the job-site.
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Melment, Applications in Concrete, Sternson Ltd., Brantford, Ont.
Bragg Ralph J.
Dudley Hubert T.
Baker William L.
Parker C. Edward
Poer James
W. R. Grace & Co.
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