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Expansion joints can be the joints between walls and concrete slabs. Concrete Expansion Joints are cuts in concrete slabs that go totally through the section to the base material. The reason for an expansion joint is to enable the concrete chunk to extend and contract with temperature changes without breaking the piece. Concrete expansion joints must be fixed with a flexible sealant or an expansion joint strip, to keep water from entering the joint and breaking down the sub base. Similarly as with any concrete fix, appropriate regard for joint planning is fundamental to accomplishing victory. Expansion joints ought to be cleared out to guarantee that any stones, earth or free flotsam and jetsam are evacuated.
Self-Leveling Polyurethane Sealant is an exceptionally liquid and flexible sealant that will extend up to 800 percent without coming up short. This considers ground development and expansion and compression from temperature change. For joints, more than 1/4 inch, Backer Rod, which is a froth rope, ought to be put in the expansion joint before applying the sealant. The Backer Rod ought to be squeezed into the joint permitting a sealant profundity of between 1/8 inch and 1/2 inch. Polyurethane sealants work best when they are fortified uniquely to within edges of the break or joint.
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