| Fri May 25, 2012 | Total posts : 5 |
|  Topic: crack in undergroun water tank
dear gutaji,
namaskar,
i have constructed under ground water tank with bricks walls & plaster with sand coarse & cement sallary two years ago, for last 4 month tank remained empty ,some days ago i had clean the tank when i notice a thin crack vertical on one wall of tank, please suggest how to repair this crack so that water does not leak.
thanks |
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| Sat May 26, 2012 | Post #1 | S L Gupta (Civil Engg)
Join date: Mar 2008 | Dear Ali
In my view there is no use to repair the crack as it is due to settlement of wall. make wall rough and construct RCC wall with this old wall with light M S Steel bars. After lying RCC wall do cement plaster on the very next day including floating coat with cement shullary. | | |
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| Sat Jul 21, 2012 | Post #2 | sam_m400
Join date: Jul 2012 | Sir
I have many are buiding sump with bricks/mesh/water proofing, instead of going for RCC sump as it is very expensive . All claiming brick one may not have any leaks as many houses having the same for years. What is your suggeston Brick sump or RCC sump?
Regards
Sam
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| Sat Jul 21, 2012 | Post #3 | S L Gupta (Civil Engg)
Join date: Mar 2008 | Dear Sam
It is right that brick wall sump is equally good. For constrution of sump do some care that
1. After excavation, compact the bottom of sump.
2. Lay cement concrete and compact it fully.
3. Construct wall either RCC or brick wall but brick wall should be 9'' thick not 4.5'' with cement mortar.It must be ensure that pipe should be laid during the masonary not after by bracking the walls.
4. Do cement plaster on both side and finish it with cement shullary on the same day .
5 lay the flooring and finish it properly.
6. Do curing for at least 7 days. | | |
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| Sat Jul 21, 2012 | Post #4 | sam_m400
Join date: Jul 2012 | thanks sir,
1. What is plastering proportion of mortar to be used?
2.What is mortar proportion to be used in the floor of sump?
3. Do we need mesh ,as i have see a thin metal mesh being put along the
wall during plastering? they say this mesh/water plastering will prevent
any leak coming in future
Regards
Sam
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| Mon Jul 23, 2012 | Post #5 | S L Gupta (Civil Engg)
Join date: Mar 2008 | Dear Sam
1.Ratio of plaster 1;4, 1cement and 4 coarse sand
Ratio of floor 1;2;4 , 1cemet,2 coarse sand and 4 bazri.
Use metal mesh. | | |
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Drainage , Sanitary System and Plumbing-Construction Questions (38) | |
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