Mod-01 Lec-13 Quality control and acceptance criteria for concrete based on compressive strength

[@andrewmullholland2429]

A sometimes confusing subject explained eloquently and clearly

[@cardtricks4u314]

How to take mean of 4 non overlapping results when we have 5 samples in total (Say in the case of 60 cu.m. of concrete)?
We can take avg. of 1,2,3 and 4.
What are we supposed to do for the balance 1 no. sample i.e. No. 5?

[@ShubhamJain-id2qi]

As is per is 456 Avg must include first and Last sample and i other two sample can be takes from remaining sample

[@VinodKumar-ln4im]

Nice

[@chamangupta4624]

Excellent