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Please tell me the difference between nominal and clear
cover. Thanks.
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Answer Posted / joydeep dhar
Nominal cover means clear distance between face of concrete and face of main outer rebar, whereas effective cover means center of rebar to outside of concrete face, so Nominal cover < effective cover. viz. if 20 dia steel is used and nominal cover is 40mm then, effective cover will be (40+(20/2))= 50mm
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