Method for restoring and reinforcing wooden structural...

Details Method for restoring and reinforcing wooden structural... Method for restoring and reinforcing wooden structural...

B - Operations, Transporting

27

M

18/715

B27M 3/32 (2006.01) B05D 7/06 (2006.01) B27K 3/15 (2006.01)

Patent

CA 1323742

ABSTRACT OF THE INVENTION A method for reinforcing in-place a hollow wooden structural component, in particular a damaged utility pole, by injecting into the internal cavities of the structural component a polyurethane composition which forms, upon curing, a rigid polyurethane having a density of at least 40 lbs/ft3 and a flexural strength of at least 3,000 psi. The polyurethane composition is produced in situ by continuously metering and blending an isocyanate-containing liquid component and a polyol-containing liquid component.

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