As per IS 10262:2019, the water-to-powder ratio by volume is expected to be between ________ for the design of a self-compacting concrete mix.

Which of the following methods is NOT commonly used for concrete mix design?

Identify the correct pair with a similar relationship: IRC 44 : Indian Road Concrete Standards :: DOE : ________.

A concrete mix is to be designed for a characteristic strength of 35 MPa, such that there is a 5% probability that an individual cube strength test result will fall below the characteristic strength. Determine the target mean strength if the standard deviation for the mix is 4 MPa.