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Old 03-27-2013, 12:19 PM   #1
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Wet Corner visible after grinding concrete surface


Firstly, thanks to those who replied to my other thread about rust and i-beams.

i am currently re-finishing my basement floor and walls.
hoping to finish the floor with epoxy and walls is drylok followed by paint.

basically rented edco floor grinder with dimaserts and re-finshed all the floor.
yesterday, i took my angle grinder to grind out the 1" or so edges left by the edco grinder and one corner, as i was grinding, noticed that it was getting wet and stayed wet.

it is as if i was too agressive and "broke a seal" and now there is some wetness present.

now, i am 99% done in preparing the floor and ready for epoxy but this corner, about 18" of darker concrete and evident moisture is starting to concern me.

currently, there is nothing i can do from the outside... since the other side of this wall is my indoor pool patio... and option of digging and waterproofing from outside is difficult.

so, my question is, from the inside, is there something i can do to stop water coming in?

option 1:
hydraulic cement in the corner?

option 2:
application of concrete waterproofing liquid/solution?

option 3:
create a 3" concrete ledge and pour cement over that area?

i know that this is going to be a continued problem for me if i apply epoxy without treating this first... but i'm hoping to find a "workable" solution to stop this enough to finish the floor.

so excuse my lack of knowledge and please let me know what is best to take care of this.

thank you in advance,

Al

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Old 03-27-2013, 12:31 PM   #2
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Wet Corner visible after grinding concrete surface


Is this an exterior wall?

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Old 03-27-2013, 12:34 PM   #3
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Wet Corner visible after grinding concrete surface


hmm...

by exterior wall, meaning what is outside and other side of the wall?
right above the wall is indoors, hallway, master bedroom closet, other side of the wall is the "foundation" for the indoor pool patio.

sorry for my lack of knowledge on this matter.
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Old 03-27-2013, 01:53 PM   #4
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Wet Corner visible after grinding concrete surface


Better check the do's and dont's on your epoxy before you try any sealers.
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Old 03-27-2013, 01:55 PM   #5
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Wet Corner visible after grinding concrete surface


Quote:
Originally Posted by kinghong1970 View Post
hmm...

by exterior wall, meaning what is outside and other side of the wall?
right above the wall is indoors, hallway, master bedroom closet, other side of the wall is the "foundation" for the indoor pool patio.

sorry for my lack of knowledge on this matter.
Maybe a quick floorplan sketch or pictures of the wall anf the other side of the wall will help.
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Old 03-27-2013, 01:57 PM   #6
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Wet Corner visible after grinding concrete surface


I'd hate to have you put time and expense into a band aid vs finding out the source of the water.
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Old 03-27-2013, 02:07 PM   #7
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Wet Corner visible after grinding concrete surface


i'll take some pics and post.

Canarywood1
you are right.
need to check with vendors... as warranty may go out the window if lay epoxy on top of anything else but concrete.

brockmiera,
yes you are absolutely right.
but that will probably involve the larger part of renovation of the entire pool patio section that i don't plan on tackling for a bit.
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Old 03-28-2013, 07:32 AM   #8
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Wet Corner visible after grinding concrete surface


there are some epoxies we use that are moisture-tolerant however none are standing wtr compatible NOR should they ever be applied to wet conc,,, it may not be extensive NOR expensive to have the leak stopped from the pool wall IF that's where it is using hydrophyllic epoxy polyurethane injection

IF you don't plan on tackling the source of the wtr leak, what good is all your prep & expense so far ? in 40 yrs, i've never SEEN a wtr leak ' heal ' itself

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