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Old 11-01-2010, 10:40 AM   #1
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Concrete Repair


Hi,
Anybody here to Help on solving this concrete problems taken Place in my new house under construction work had stopped due to madness of my Mad Friend ( Civil Engineer ) and getting repair by ME as DIY Here is the detailed Pictures Link http://picasaweb.google.com/lh/photo...eat=directlink

http://picasaweb.google.com/11671463...eat=directlink
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Concrete Repair-new-20build-20stair-20of-20poor-20concrete.jpg  


Last edited by meetranjith; 11-02-2010 at 08:11 AM.
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Old 11-01-2010, 12:19 PM   #2
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It would help if you explained what we were looking at and paid a little less attention to the graphics.
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Old 11-01-2010, 02:56 PM   #3
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wtf is that ? ? ?
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Old 11-01-2010, 08:29 PM   #4
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Quote:
Originally Posted by itsreallyconc View Post
wtf is that ? ? ?
Donno,but I'm bettin' it ain't in North America...

Haiti maybe,..?? Naw,... no blue tarps...
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Old 11-01-2010, 10:29 PM   #5
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the large font doesnt help either.......
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Old 11-02-2010, 02:58 PM   #6
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Hey meetranjith my name is George and I work for a Chicago area Home Depot. I have worked before in Europe implementing some of the techniques that were attempted on this building. First of I can tell that most of this concrete has been mixed on the spot and not using correct ratio of Portland cement and aggregates. Secondly the "form" that was built to support the ceiling was built and supported incorrectly with a wrong grade of plywood; they have used construction grade boards and "cdx" plywood that is not suitable for this kind of application. In addition of using a wrong plywood (they where suppose to use a 21mm plywood with smooth waterproof backing), they have also positioned wrong size rebar and mesh through the building, concrete was poured in sections and not being vibrated etc. To conclude I would strongly recommend getting a structural engineer to inspect this building, I can see some safety issues here, especially with a soffit (first picture) that is built around this house and not being tied with a ceiling slab.
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Old 11-02-2010, 04:12 PM   #7
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leave it to an apron store guy to discover all the defects think those patterns are from form liners ? seriously, where IS/HAS this taken place ? from the rust on the exposed steel, its not new const.

forming materials often don't meet us codes but there're lots of buildings around the world still standing after 500yrs or more,,, i think your ' mad engineer ' is actually your best friend even if he isn't a structural guy.
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Old 11-03-2010, 02:23 AM   #8
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Excellent Diagnosing But the Fact is In our Area the contractors are using Coconut Tree woods only instead of Plywood. Whatever it may be happened shall you suggest me an Technical idea to solve this Problem ? Sorry for my poor English Please Forgive me.
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Old 11-03-2010, 02:35 AM   #9
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Here You can see the current status of the Building http://picasaweb.google.com/11671463...eat=directlink It's new One.
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Old 11-03-2010, 08:54 AM   #10
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I'm not sure what the "problem" is; is it the rebar showing or the exposed aggregate?
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Old 11-03-2010, 09:26 AM   #11
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There only repair possible is to fill the voids. In the US I would recommend a premixed patching mortar, but I am doubtful that you have access to it where ever you are, so you will have to make it yourself.

1 part portland cement
3 parts sand (<1/8" aggregate)

Mix it using either an acrylic or latex emulsion as a bonding agent. Add the bonding agent to the mix water at 10-25% of the mix water.

It should be somewhat stiff, but not crumbly, about the consistency of peanut butter.

Trowel it on in small amounts completely filling all voids.

When finished, use the same mix, but make it thinner, about like pancake batter, and rub the entire concrete surface with the mix using a sponge float.

Good Luck!
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Old 11-04-2010, 10:02 AM   #12
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i don't know about you guys but i'd love this as a fort in my back yard

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