I have a poured concrete foundation that has some very small narrow cracks in the basement floor. What is the best way to fix them myself and what products should I use. What about moisture blocking brush on products. I know the major consensus from the experts on this board is that brush on concrete water-proofing product don't prevent water from entering your basement, but are they usefull to help block moisture from damp spots?
House is in Massachusetts. built in 1940's. The only cracks exist near the spot I have my furnace. It looks some past owner did some work on the floor under the old furnace. You can almost see a rectagle outling in the floor surrounding the furnace. The cracks run along parts of the rectangle...in a very geometric way (not in a random pattern). I can post pics if helpful. When I had water in my basement a year ago, water was getting sucked in from these cracks. This weekend we had major rain and flood conditions here in Mass. and my floor didn't get any water but I did notice a few spots on the crack got moist. Thanks Philip
Many years ago they placed the heavy furnace equipment before they poured the floor. At some time later they removed the heater and replaced with new. At that time someone patched the hole with new cement. The result is the crack your seeing. Simply use some dash patch to fix. You can also use a good quality paintable caulk if you want to paint the floor in that area. The caulk should also help prevent any moisture from wicking up through.
Posts: 1123 | Location: New Jersey | Registered: 31 January 2006
What is dash patch? Will any concrete patch work? What is a good technique to inject as much patch as possible in narrow cracks 1/8th to 1/16 wide? Do you recommend any floor paint to help moisture avoidance?
