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Old 03-15-2013, 10:23 PM   #16
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Waterproofing a basement


Are you sure this is worth the effort? Check your I beams. their integrity may have been compromised by rust. I have a hard time to believe that there are not many more leaks with an outdoor entry, cement block walls and concrete overhead. It appears as if the whole area has been damp for quite some time.

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Old 03-16-2013, 05:55 AM   #17
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Waterproofing a basement


looked closer - perhaps those are elec conduit ?

when 1 places an overhead slab, it must be supported til the conc has enough strength to support itself,,, was the waferboard temp supported til the conc had enough strength to stay in place ?

filling the space w/sand won't accomplish much other than displacing any leaking wtr,,, the wtr will still enter & cause more damage which won't be notices til something collapses
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if you hear it from a guy in the apron store, be VERY suspicious the mtl/method will work,,, when it time to build something together, they won't answer phones NOR help

Last edited by itsreallyconc; 03-16-2013 at 05:58 AM.
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Old 03-16-2013, 09:04 AM   #18
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Waterproofing a basement


Yes, those are electric conduits. I would imagine the wafer board was initially meant to support the concrete, and then they just left it when they ran joists and dyawalled the ceiling.

The I-beams appear to just have a few rust spots on them. And yes, water only seems to come in from the carport concrete.

I guess the ultimate question is, is it really worth it? I feel like if I did manage to waterproof it, it would be an ongoing process.
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Old 03-16-2013, 10:52 AM   #19
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Waterproofing a basement


only you can make $$ decisions but it you don't, the problem will get worse & eventually cause swtuctural damage to the dwelling,,, sump, zoeller m-53 pump ( eBay ), ckl valve, & discharge pvc should be under $ 250,,, hdpe coil of 4" pipe's about $ 50,,, 4 of our guys can break, install, & place back 50' of conc in a day w/elec bosch brute hammer & 1" chisel bits,,, other needs - miradrain, # 57 stone, soil erosion cloth to line the pipe trench, & bagg'd conc mix,,, what's it worth to you ?

ps - 10 other things ( the biggest advance in the wtrproofing trade ) 5gal plastic buckets once you're done, you're done, tho
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if you hear it from a guy in the apron store, be VERY suspicious the mtl/method will work,,, when it time to build something together, they won't answer phones NOR help
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Old 03-16-2013, 07:44 PM   #20
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Waterproofing a basement


Okay, I got all that. How should I go about keeping water from coming through the carport floor in the first place? Some sort of paint or coating?
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Old 03-16-2013, 09:47 PM   #21
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Waterproofing a basement


About all I can think of is to fill the area so water doesn't pool and then use a concrete sealer over the whole area. Use a ready mixed bag of topping mix that has glue in it or I have had good results using a mortar mix or sand mix and replacing half the water with Weldbond glue that is formulated for use in concrete work. The area must be very clean. Scrub it with a dilute mix of muriatic acid or vinegar and flush well with water. Brush the area with a 50/50 mix of glue and water before patching.
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Old 03-16-2013, 10:16 PM   #22
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Waterproofing a basement


Thanks. I will look into that and hopefully post an update at some point.

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