By sempak. Concrete Tools. Published at Tuesday, July 03rd, 2018 - 22:13:00 PM.
Mixing the Cerlon with the paddle causes heat to start to build up in the mixture. Heat causes the Cerlon to set. Using a heat gun you need to get the temperature up to about 80 to 90 degrees before you pour it into the area that needs to be repaired. Once it reaches 100 degrees you have only about 10 minutes to finish the patch with a trowel.
The next operation was using a hilt chipping hammer to remove all the concrete between the scores down ¾ of an inch so that the Cerlon can be poured at least ¾ of an inch thick. Only a ½” of Cerlon is needed to make the area impervious to the salt, but we figure that we go to ¾ of an inch to make sure the salt will not affect our repair. Once this is done and the spoilage is removed the concrete has to be cleaned and remove as much of the dust as possible. Cerlon will chemically bond with the concrete so you do not need to put any product as a bonding agent as you do with concrete.
Whatever be the reason, cracks in the foundation are very perilous if ignored. Repair must be done as soon as possible. Difficulties involved in the repair process are influenced by how big the cracks are. For tiny moisture created cracks, the repair is relatively simple and can be done by almost anyone. These cracks must first be brushed clean with a wire brush. A jet of water may be passed to remove any loose concrete particles within the crack. The crack is then allowed to dry completely and filled with concrete caulk. If the crack is large, then it is packed with patching materials that are specifically available for concrete. These patching materials must be wet when applied. They are limestone based, and they expand as they dry, filling up the crack completely. The finishing touch is to apply a sealant to the repaired crack.
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