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Concrete is unsuitable for compaction by a vibrator, if it is?

A.    dry

B.     earth moist

C.     semi-plastic

D.    plastic

E.     none of these

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Question added by Ksenija Kancelak , Construction Project Manager , City of Koprivnica, Koprivnica (Croatia)
Date Posted: 2016/07/14
Hrvoje Kancelak
by Hrvoje Kancelak , Certificated Traffic Engineer , Office of independent engineer

The right answer is under D.    plastic

Abdulkarim Khan
by Abdulkarim Khan , Sr QA/QC Engineer (PMC) , TUV NORD India Pvt Ltd

Option D is correct because compaction by vibrator is used when the slump is not greater than 50mm and for plastic slump value is 65mm, so D option is correct.

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