What is Standard Deviation in Concrete Quality Control: Nayak OR Khalnayak?

Welcome to The Concrete Show - this is my Weekly YouTube Live that I broadcast  every Wednesday 8:00pm
In this episode, we will look at the role of the Standard Deviation in Concrete in a fun way and what our IS code 456 says about it.
Standard Deviation is an important quality control tool for concrete - Lets master it.
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