How do I fill concrete expansion joints?
How to Replace Concrete Expansion Joints Sweep away any dirt and debris from the area. Dig out and remove all the old material that’s in the joints with a putty knife. With a wet-dry vacuum, clean out the joints between the slabs very well. Apply a bonding adhesive, usually epoxy, into the joints with a…
How to Replace Concrete Expansion Joints Sweep away any dirt and debris from the area. Dig out and remove all the old material that’s in the joints with a putty knife. With a wet-dry vacuum, clean out the joints between the slabs very well. Apply a bonding adhesive, usually epoxy, into the joints with a brush. Insert foam backer rod. Cover and seal the joint. Click to see full answer. Keeping this in view, can I fill expansion joints?Just remember that expansion joints should always be sealed and filled with a flexible joint sealer and never be epoxied or coated over. Contraction joints can be filled in the same manner after a coating or sealer is applied.Similarly, how do you fill large gaps in concrete? Although Sakrete crack filler can be used for cracks up to this size it’s best to fill in large gaps with the foam tubing. The foam tubing should be slightly wider than the crack to create a tight fit. I used a 5/8 inch wide variety. Place the tubing in the crack and push it down. Likewise, people ask, where do you put expansion joints in concrete? So for a 4 inch thick concrete slab, expansion joints should be no more than 8 to 12 feet apart. They should also be placed around structures that go deeper than the concrete slab, such as columns or walls.Should I seal concrete expansion joints?Expansion joints must be sealed with a flexible sealant, like QUIKRETE Self-Leveling Polyurethane Sealant or QUIKRETE Non-Sag Polyurethane Sealant (dependent on application), or an expansion joint strip, to prevent water from penetrating the joint and deteriorating the sub-base.
