Ultra-low viscosity epoxy sealer/healer

Details Ultra-low viscosity epoxy sealer/healer Ultra-low viscosity epoxy sealer/healer

C - Chemistry, Metallurgy

08

L

C08L 63/02 (2006.01) C04B 41/48 (2006.01) C08K 5/17 (2006.01) C09K 3/10 (2006.01) E04G 23/02 (2006.01) E04G 23/06 (2006.01) C08G 59/50 (2006.01)

Patent

CA 2182633

An epoxy sealer/healer formulation for sealing and strengthening cracked concrete comprising an epoxy resin, an amine and a dialkylene triamine- alkylene oxide adduct, where the formulation provides a modulus and/or compressive strength at least that of uncracked concrete and effective for penetrating a concrete crack at a rate of at least 10 mm/min for a crack 0.5 mm wide when applied by gravity feed. The epoxy sealer/healer preferably has a viscosity of less than 100 centipoise and a tack-free time of less than 12 hours. The epoxy sealer/healer is advantageous in being able to bond to moist concrete surfaces. A method of using the epoxy sealer/healer for sealing and restoring the strength of cracked concrete is also set forth.

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