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HOW MANY CUBES REQUIRED FOR 7 AND 28 DAYS TEST FOR ALL MIX
GRADES.
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Answer Posted / rajah
As per IS 7 days is not required but 7 days result is just a cross checking (7 days result must more than 77%)
for 28 days
concrete in cmt no of samples(3 cubes)
1) 1 to 5 1
2) 6 to 15 2
3) 16 to 30 3
4) 31 to 50 4
5) 51 and above 4 plus one additional sample for
each additional 50 cmt
| Is This Answer Correct ? | 23 Yes | 9 No |
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