Expansion Joint Question

Sep 11, 2010 4 Replies

The expansion joint where the driveway meets the front of the garage has deteriorated. Both are over 35 years old.



My plan is to slightly grind down what is left of the joint then fill it. My question is, what should I use to fill the joint? There are also some gaps in the joint.



I live in Upstate N.Y. and would like to do this before the harsh weather comes in. Any advice is greatly appreciated.



Bob



Most people just use caulk. Concrete caulk. It is the approx color of concrete and is fairly durable.

Colbyt

Not sure why you would consider using a grinder? Can it be trimmed down with a utility knife? A urethane caulk would certainly seal out water, snow, etc.

I lived in the Adirondack Mountains. Roads would freeze, crack and heave in the seasons. The road crews closed the cracks with a liquid tar type substance.

Remove the existing expansion joint at least to half depth. Abrade and clean the concrete edges. Install backer rod to control caulk depth. Install Vulkem or SL1 polyurethane caulk.

Ditto except I'd recommend Sikaflex Self-Leveling Sealant

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cheers Bob

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