How best to patch this?

Discussion in 'Building' started by Mike26, Jun 4, 2018.

  1. Mike26

    Mike26

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    There is a storage area in the basement under the porch shown here. I noticed water coming in during heavy rains and checked the outside wall to see where the water might be getting in. I noticed that the foundation blocks were covered in a layer of cement that seems to have pulled back from the cement block and allowed water to get in behind it (at least I hope this is where the water is coming from :D ). I started to remove the loose cement and noticed that there's quite a big gap behind it. My question is, what's the best way to patch this up?

    IMG_20180603_194145.jpg IMG_20180603_194154.jpg IMG_20180603_194159.jpg
     
    Mike26, Jun 4, 2018
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  2. Mike26

    ralphhughes

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    There are special silicone caulk products for sealing concrete gaps like this. I would recommend you use them for filling these gaps. Look in the masonry section of your hardware store. Since they're silicon-based, their a lot easier to work and smooth out than an adhesive.
     
    ralphhughes, Jun 22, 2018
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  3. Mike26

    zimmy1948

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    get a bag of type S mortar you just have to add water and trowel it on.
     
    zimmy1948, Jun 24, 2018
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