Home Improvement Expert Danny Lipford

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How to Seal Expansion Joints in a Concrete Driveway


Cracks in the expansion joints on a concrete driveway or sidewalk can allow water to seep under the concrete and erode the soil. Watch this video to find out how to clean and seal cracks in expansion joints to prevent damage to a concrete driveway or sidewalk. ...More




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How to Seal Expansion Joints in a Concrete Driveway

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Cracks in the expansion joints in a concrete driveway can cause problems if they’re not sealed properly. Cracks can allow water to seep under the concrete, creating a void that can cause the concrete to sink.

To solve this problem, use a masonry blade on a circular saw to clean out the crack, then fill it with a bead of silicone caulk that’s made especially for concrete. The caulk will seal the expansion joint and keep water out.

Watch this video to find out more.

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  1. Eddie Says:
    March 25th, 2013 at 3:32 pm

    i would say in the video he needs ,first to clean out the joint from concrete dust a long the side and depending on depth apply a backer rod ,and would go back with a urethane caulk , in my opinion it sticks better to concrete than silicon.

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