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Concrete segregation

Concrete segregation

Concrete segregation

(OP)
Hello
i was wondering how can we quantify segregation of concrete ? and to what extent can we say that the element should be destroyed and remade again ?
I know that for the latter , it depends on the element studied and its function and the importance of the structure . But i would appreciate any guides or rules
Thanks

RE: Concrete segregation

The results are quantified by concrete testing. That is one of the reasons that concrete samples are taken during concrete placement.

RE: Concrete segregation

bimr: I think he is talking about segregation in the process of placing, screeding, vibrating, finishing, etc.

RE: Concrete segregation

Unfortunately, segregation is a result of placement technique and not something you can test for. You have to control the placement techniques in order to effectively minimize the potential for segregation.

RE: Concrete segregation

(OP)
Ok so is it fine to say , oh we got a segregation here we need to destroy the element !
or can we say , this is not that bad and we should perhaps use a financial penalty against the contractor

RE: Concrete segregation

It depends on the severity of the segregation, where it occurs and how critical the member is to the structure. All have to be considered.

RE: Concrete segregation

I agree with Ron. Also, a well written spec will address defects and how they are to be repaired.

RE: Concrete segregation

You can take cores and visually examine them. The cores can be tested. Check with ICRI, International Concrete Repair Institute.

RE: Concrete segregation

(OP)
Ron replicated exactly my initial thought lol
anyway thank you all

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