E - Fixed Constructions – 04 – D
Patent
E - Fixed Constructions
04
D
261/48
E04D 7/00 (2006.01) C04B 28/04 (2006.01)
Patent
CA 1138002
ABSTRACT OF THE DISCLOSURE Improved lightweight insulating concretes containing expanded vermicu- lite 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 dis- persing 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 insula- tion boards in the formation of sloped or non-sloped insulated roof systems con- structed at the job-site.
364012
Bragg Ralph J.
Dudley Hubert T.
Smart & Biggar
W.r. Grace & Co.,-Conn.
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