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Old 09-07-2008, 07:20 AM   #31
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Foundation Patch: Hydrolic Cement??


the more we get 'into' this post, the more it becomes clear the conc should be replaced if it were my house,,, budget considerations aside, of course.

no, handy - water stop cement (hydraulic) is NOT my mtl of choice nor would i use a self-leveler,,, i'd tool it to be more certain of adhesion + i like the appearance of tool'd jnts more.

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Old 09-07-2008, 08:49 AM   #32
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Foundation Patch: Hydrolic Cement??


now i know this is the diy forum. and i understand you would like to diy. But i think you should just call a pro that knows what there doing. youve already tried diy once and it didnt work. now youre going to try again without the experience or skill to know how to do it right. if you do it wrong again then your back to square one. a pro would only charge about $2 a linear foot to fix this. i think your spending more trying to diy imho. but if diy is what you want to do, than go for it. it cost money to learn.

Last edited by KC Brick Layer; 09-07-2008 at 09:10 AM.
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Old 09-07-2008, 10:07 AM   #33
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Foundation Patch: Hydrolic Cement??


Here is what I have done:

1. I used a Poly concrete parch, Water-tite in a tube that is meant for patching and is waterproof... it goes on very thick and I used a putty knife to shape it. It is thick enough to fit and hold in the larger holes. Takes 72 hrs to cure.

2. I tred DAP self-leveling poly concrete patch. This stuff is so runny it is like water and just runs all over the place and falls through the holes.. takes 3hrs to cure. I guess I understand what self leveling really means now.

Question: Can I put the poly patch over where the previous roofing cement is? Can I cover it up with the polysealer without removing it? Will the poly adhere to the roof cement? (Don't throw a bridge at me...Have you tried removing the roof cement).

Tom
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Old 09-07-2008, 10:15 AM   #34
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Foundation Patch: Hydrolic Cement??


No, polyurethane is a solvant based material. Roof patch is an asphalt based material. The solvants in the urethane will slowly disolve the roof patch thus it will not seal.
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Old 09-07-2008, 12:57 PM   #35
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Foundation Patch: Hydrolic Cement??


Getting the roof cement off the concrete is almost impossible. If I encase the roof cement with the poly over it, extenting to the poly to the cement would that overlay and seal it under the poly?

The roof cement is not that large, an inch or two , would it adhere and basically encapsulate it?

Worst case if it opens up this winter I could always put some roof cement over it to patch it and have a pro redo it.

BTW, Village is planning to repave the alley where it butts up against my slabs but not until next or the year after.. Will have to do it again one way or the other after I see what they do.

THoughts,

TNx

tb
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Old 09-07-2008, 05:20 PM   #36
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Foundation Patch: Hydrolic Cement??


if its concrete that your sealing to and not the asphalt than it might hold for a little while. but from your pictures it looks like the roof patch is from concrete to asphalt. and if this is what you are trying to cover with polyurethane than i would say no.
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Old 09-07-2008, 06:14 PM   #37
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Foundation Patch: Hydrolic Cement??


Well Here's a dilemma...

I really didn't get it until now..

I am patching where concrete meets asphalt. I need a sealer that will adhere to both.

I have put down poly and will see how it does. What material would be flexible AND adhere to both for DIY?

See PHoto

tnx,

tb
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Last edited by roztom; 09-07-2008 at 06:38 PM.
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Old 09-07-2008, 08:12 PM   #38
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Foundation Patch: Hydrolic Cement??


lol not what you just did. You needed an asphalt based material like asphalt crack repair mastic in the tubes (home depot). Even the roof pathing material you used earlier would have worked. This would adhere to both the asphalt and the concrete. Its just that the tolulene solvant that polyurethane caulking has in it will disolve the asphalt making it not stick.
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Old 09-07-2008, 11:22 PM   #39
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Foundation Patch: Hydrolic Cement??




SO I needed an asphalt crack repairer, not poly and THAT would stick to BOTH?

tb

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