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    Minor-Fifth's Avatar
    Minor-Fifth Posts: 1, Reputation: 1
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    #1

    May 1, 2016, 08:11 AM
    Crack on other side of concrete wall after hammer drilling.
    I recently drilled 6mm pilot holes for anchors in a 6in interior concrete wall with a thin plaster coating in my apartment. After drilling and a day or so later, I noticed a 5 ft long vertical crack on the OTHER side of the wall from which I was drilling. I noticed it from a bulge in the plaster. How serious is this?

    https://drive.google.com/open?id=0B4...Us3bzZaUGFHZmc

    https://drive.google.com/open?id=0B4...Us3bzZaUGFHZmc
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
    		  
    #2

    May 2, 2016, 04:51 AM
    That jut looks like crack in the plaster to me. A settlement crack that has been repaired before. Probably there before you drilled for the anchors you just didn't notice it.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #3

    May 2, 2016, 07:45 PM
    An interior wall in an apartment made of concrete? How sure are you that its solid concrete and not block? If its not a load bearing wall no big worries.
    smoothy's Avatar
    smoothy Posts: 25,490, Reputation: 2853
    Uber Member
    		  
    #4

    May 2, 2016, 07:58 PM
    If its Europe... its actually a type of rough unglazed terracotta brick or block that's got a sand loaded plaster (almost like a real stucco that's cement based).
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