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Is 456 revised lastly in which year? & What are the revisions?
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Answer Posted / jayavijayan k
IS 456 is revised on 1978. i dont know the changes exactly.
but in the old IS 456(1964) the unit was KG/SQ.CM.
that means compressive strength is mentioned as
100kg/Sq.cm, after the revision it is mentioned as N/sq.mm
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