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solution to rectify the loose compaction of casting in rc

 
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nycindia2000
SEFI Member
SEFI Member


Joined: 26 Jan 2003
Posts: 12

PostPosted: Sat Nov 27, 2004 8:44 am    Post subject: solution to rectify the loose compaction of casting in rc Reply with quote

Eng. Suraj Sing,
The problem of leakage is due to:
1. To improve the workability generally contractors add more water .
2. at the junction of the raft and wall, water bar is not provided.
3. Compactio n of concrete is not upto desired level / Noproper vibration of concrete was carried out.That is density of concrete is low at that place.I am sure plasticiser was also not used to ensure the desired quality of concrete reqiured

All/any of  these factors will result in leakage .
You should first try to provide a impermiable membrane at  water face ie from outside. Generally it is not possible as the back filling etc is complete and there is no provision for doing this activity.
The simple and very reliable solution is to carryout pressure grouting of wall at specific intervalswith or without addition of admixture in the cement grout depending on the severity of the inflow of water. In most of the cases this solution works out eficiently.
If you need any further assistance you may send /mail me the photographs and other technical details so that i can understand the appropriate magnitude of problem.

WIth Best Wishes
N.Y.Choudhary
Director- Kutumbale Consultants & Engineers Pvt. Ltd Indore
Tech. Advisor Project for Athi River Mining  Ltd. Kenya

rccbuildings2@yahoo.co.uk wrote:
Please FOSROC or MBT for resin injection to clog the leaking voids
Eng Suraj Singh

anjandas1@sancharnet.in wrote:
Hi,
I am facing one retrofitting problem in newly constructed basement floor.
Problem is something like this:
the r.c.c. retaining wall of small basement floor, which is recently constructed, seems that water is leaking through out the retaining wall upto 1200mm level . matter may be due to less compaction of casting.
now, question is how to rectify the same.
if anybody know the solution, it will be highly helpfull for me.








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