QAC Engineer Interview Questions and Answers

The minimum amount of cement for mix design depends on various factors such as the type of mix, strength requirements, and environmental conditions.

• The minimum amount of cement required for a mix design is determined by the strength requirements of the concrete.

• The type of mix also plays a role in determining the minimum amount of cement required.

• Environmental conditions such as temperature and humidity can also affect the minimum amount of cement required.

• The minimum amount ...read more

Mix design varies based on the strength of concrete required. M-5 to M-90 are different grades of concrete.

• M-5 requires 1:5:10 (cement:sand:aggregate) mix ratio

• M-20 requires 1:1.5:3 mix ratio

• M-50 requires 1:1:2 mix ratio

• M-90 requires 1:0.5:1 mix ratio

• The strength of concrete increases with the increase in the mix ratio