What can I use for concrete expansion joints?
- Sikaflex self-leveling sealant.
- Caulking gun for 29 ounce tubes.
- Utility knife.
- Rags (you'll need several)
- Safety glasses.
- Nitrile gloves.
- DeWALT 4 1/2 Inch Angle Grinder.
- DeWALT Tile Blade for Angle Grinder (this works way better than the blade I used here)
People also ask, when should you use expansion joints in concrete?
The goal of the control joint is to allow the slab to crack, during expansion and contraction, in a known location and in a straight line. Expansion joints are put in place before the concrete is poured. Expansion joints are used to allow the slab to move and not put stress on whatever it abuts.
Also, 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.
Just so, how do you clean concrete expansion joints?
Sweep out the expansion joints to ensure that any pebbles, dirt or loose debris are removed. Scrub and clean the surface of the repair area with QUIKRETE Concrete and Asphalt Cleaner and a stiff bristle brush. Thoroughly rinse the area, after cleaning, and wait for the area to dry, before applying any sealant.
Should you 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.