E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
72/154, 20/17
E04B 5/00 (2006.01) E01C 23/10 (2006.01) E02D 35/00 (2006.01) E04G 23/02 (2006.01) E04G 23/04 (2006.01)
Patent
CA 2021404
ABSTRACT OF THE DISCLOSURE A method to remove a depression in a floor extending on top of a supporting underfloor and to prevent recurrence of this depression thereafter, the method comprising: a) determining the pressure that the floor may withstand in use; b) preloading the floor by exerting onto the depression in the floor a pressure at least equal to the pressure determined in step (a), using, for example, dead weights to do so; c) injecting an expandable polymeric foam in an unexpanded state beneath the depression in the preloaded floor between this floor and the supporting underfloor and allowing the foam to expand and level the floor until the depression is removed; and d) releasing the pressure exerted onto the floor after the depression is removed. The pressure exerted onto the floor in step (b) exerts a compressive strength to both the foam injected beneath the floor and the supporting underfloor. Such a compressive strength in turn causes the foam to reach a density sufficient to withstand any further pressure that could subsequently be exerted onto the floor, while it also ensures that the underfloor is stable enough not to sink.
Robic
Sinki Gamil
LandOfFree
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