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Thread: Concrete weeping?

  1. #1
    R93
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    Concrete weeping?

    Munsey this might be up your alley?
    When we shifted house over a year ago I of course relocated my safe.
    It is a rather large and heavy E cat 15 gun safe with 2 bolt holes.
    I hammer drilled about 55mill of concrete for both 10 mm bolts.
    It sat there happily for over a year until I noticed a wet patch at one corner of the safe. Thought I may have spilled some water out of my damp rid that was in there.
    Got home the other day and noticed it still wet.
    Pulled the rubber mat out and noticed one of the bolts all rusted up.
    Managed to get the friggin thing off the bolts to have a look.
    I thought maybe I went to deep with the drill but I didn't.
    I can't work out where the moisture is coming from so decided to shift it further along a bit.
    The concrete around one hole seems damp the other is dry as a bone despite being slightly deeper.
    Got me stumped.
    Any ideas as to what causes this and can I do anything to prevent it when I shift it?



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  2. #2
    Almost literate. veitnamcam's Avatar
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    Central heating?
    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

  3. #3
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    You've gone thru the dam proofing mes thinks, you need to get the bolts out and reseal, water table must be high, is it Wet or just Damp?
    Boom, cough,cough,cough

  4. #4
    R93
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    Concrete weeping?

    Visible moisture if you know what I mean. My old man did a good job resealing the holes.
    The hole that was weeping is only 55 mil deep. Shouldn't have gone thru anything at that depth should I?

    No Cam no heating.


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  5. #5
    Village Idjit Barefoot's Avatar
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    Basement or simply ground floor? Age of concrete?
    As Maca says you may have gone through the DP membrane, or just nicked a waste pipe or water pipe in the slab.

  6. #6
    R93
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    Concrete weeping?

    Single level home 3 yrs old.
    Pretty sure I never hit anything.


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  7. #7
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    Quote Originally Posted by Barefoot View Post
    Basement or simply ground floor? Age of concrete?
    As Maca says you may have gone through the DP membrane, or just nicked a waste pipe or water pipe in the slab.
    Oh yeah I like that, nicked a pipe! Good possibility, 55mm could mean a mean builder?
    Boom, cough,cough,cough

  8. #8
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    Hard to stop hydrostatic pressure sealing from the outside, if your stuck I can talk to a company here that specialises in that shit. Get a product name, it's usually a mongrel to fix
    Boom, cough,cough,cough

  9. #9
    Member smidey's Avatar
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    let me understand this properly. You've drilled into the floor slab? 55mm into it. Does it have blocks around the outside of the slab or is it a poured concrete footing? Is it a raft floor?
    If i could have a full time job shooting pests i'm up for over time.

  10. #10
    dog chaser distant stalker's Avatar
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    Concrete should be plenty thick enough especially if its at the edge of home. Sounds like water pooling in undersheet/on inner edge of ring for some reason and seeping through
    I would reseal and try again elsewhere. Concrete does let a fair bit of moisture through hence guidelines on depth of reo rod etc to prevent early rusting. Presuming builder did pour thick enough pad...

  11. #11
    R93
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    I will see how it turns out mate. Holes were filled with a proper concrete sealant.
    I will be pissed if it does it again.


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  12. #12
    Member smidey's Avatar
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    if its a raft type slab often they are only 80mm thick on top. traditional slabs are around 100mm but they all should have dpm and you shouldn't have any water under the concrete and the side of the footing should be sealed as well. concrete is pourous, perhaps a waste pipe or water pipe has split in the slab, water consumption been higher than normal?
    Maca49 likes this.
    If i could have a full time job shooting pests i'm up for over time.

  13. #13
    R93
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    Concrete weeping?

    It's a poured pad that makes up my garage floor.
    I do not understand how a hole a few inches away and deeper is not weeping?
    Dunno about water consumption, it isn't measured here.


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  14. #14
    Member smidey's Avatar
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    they are all poured, just what is under the slab to what system it is and how it performs.

    water leaks are a tricky thing and worse in concrete. seepage can come from a long way away and the water will take the easy route. hopefully the last you've seen of it.
    If i could have a full time job shooting pests i'm up for over time.

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    Cut a bigger chuck out with a grinder and find out what's going on. It will also be easier to repair, you need to find the cause.
    Munsey likes this.
    Boom, cough,cough,cough

 

 

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