Civil Engineering - Concrete Technology - Discussion
Discussion Forum : Concrete Technology - Section 1 (Q.No. 34)
34.
The preliminary test is repeated if the difference of compressive strength of three test specimens, exceeds
Discussion:
13 comments Page 2 of 2.
Pankaj mehra said:
1 decade ago
As per IS 516 Average of three values shall be taken as the representative of the batch provided the Individual variation is not more than ± 15 percent of the average.
Otherwise repeat tests shall be made.
Otherwise repeat tests shall be made.
Madhu C N said:
1 decade ago
Usually test is repeated if 5% of specimens failed to satisfy the results right.
Amitgoel said:
1 decade ago
Please explain your thought. ! As per IS-456, allowable % age is 15% between three adjacent cubes.
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