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Hello We have completed 100% repla

Hello We have completed 100% repla

(OP)
Hello
We have completed 100% replacement of teh annular plates and extensive bottom plate patch works on a tank undergoing rehabilitation works. Found a no. of bulging areas after the patch plate works were completed. We are looking into methos to fill the voids below the bottom plates, to avoid stress on the weld joints when the product level goes up and down. Foundation is oily sand.
TMG specifies using Controlled low strength mortar. I think, as the foundation is oily sand, this will not be fesaible, as the mix will not flow and self level to fill the gaps.Please share on methods of filling up the gaps.

RE: Hello We have completed 100% repla

You might be better off posting in the storage tank forum.

For me I would try foamed concrete or perhaps PU foam.

Or just leave it. If it flexes when you stand on it ( the famous Fat Guy Test) then it's OK. If not the plate really should be cut and fixed properly or pour in flowable fill. I don't know why you think it won't set?

See this as example http://www.eng-tips.com/viewthread.cfm?qid=352287

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