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Is it right to use concrete spacer with different concrete grade or do we have to cost it with same concrete mix we are costing ?

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Question added by mohamed fouad , Construction Manager , ABR
Date Posted: 2014/10/26
Mohamed Galal Hussein Ahmed Mohamed
by Mohamed Galal Hussein Ahmed Mohamed , Technical Mnager , Fast Building Contracting Co.

Spacers should be made from the same grade of concrete, it should be cured by water for7 days at least before use them

suhaib usmani
by suhaib usmani , Senior QA/QC Engineer , Qatar Building Company

Same or higher grade, if you have many grade of concrete for different structures/element..  Prefer to make spacer of highest grade  to avoid any non conformance.. 

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