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Thread: spalling concrete

  1. #1
    DIY Member tregg's Avatar
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    Default spalling concrete

    What are the remedys for spalling concrete? It's in my basement but not on a load bearing wall. It is next to the stairs going up and is on the edge of the attached garage so there is earth on the other side of it.

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    Retired Defense Industry Engineer jadnashua's Avatar
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    There are various concrete products designed to top your slab. Will this ever be finished with something on it? Maybe tile, carpet, etc.? Then, it may not matter.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  3. #3
    DIY Member tregg's Avatar
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    Thanks Jim!

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    Plumber jimbo's Avatar
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    jad....I think he is talking about a wall surface, not a floor slab. He mentions earth on the other side, and a contiuously wet wall which was not waterproofed on the outside can fall victum to spalling.

  5. #5
    Retired Defense Industry Engineer jadnashua's Avatar
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    Hydrostatic pressure may make any topping fail. You may want to call the manufactuer of the product. Two companies that make stuff for this are Ardex and Custom Building Products. There are others. Check their websites, read the spec sheets, and then call and talk to a tech to find the best product. Some of them require a primer first (a bonding agent), and that usually requires the area to be dry. Depending on the weather and ground conditions, you may only have a narrow window of opportunity to do this.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

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