E - Fixed Constructions – 04 – D
Patent
E - Fixed Constructions
04
D
E04D 1/16 (2006.01) B28B 11/04 (2006.01) C04B 24/24 (2006.01) C04B 24/26 (2006.01) C04B 28/02 (2006.01) C04B 41/48 (2006.01) E04C 2/04 (2006.01) E04D 1/04 (2006.01) E04D 1/28 (2006.01) E04D 3/04 (2006.01) E04F 13/14 (2006.01) E04F 15/08 (2006.01)
Patent
CA 2258067
A precast concrete plate, such as a roof tile, floor tile, wall tile or house siding, comprises in total from about 0.2% to about 5% by weight of a polymeric modifier having a Tg of above -40°C. The portion of said concrete which comprises no more than about 50% of the thickness of all the concrete which forms the plate, when measured from the bottom surface of the plate towards the top surface of the plate, includes at least about 60% by weight of said polymeric modifier. The plates have a relatively higher degree of resistance to flexural loadings and resistance to impact-impulse loadings in comparison to concrete plates which comprise no polymeric modifier, thus rendering them less likely to be broken or fractured during their storage, transfer and assembly.
Bowe Michael Damian
Hsin Roger Shan Chung
Gowling Lafleur Henderson Llp
Rohm And Haas Company
LandOfFree
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