Correct Answer:
Option D - Concrete mix Design : Concrete mix design is the process of determining the proportions of the various components that need to be combined to create a concrete mix with the desired properties. concrete mix design is intended to achieve specified characteristic strength, durability and required workability.
D. Concrete mix Design : Concrete mix design is the process of determining the proportions of the various components that need to be combined to create a concrete mix with the desired properties. concrete mix design is intended to achieve specified characteristic strength, durability and required workability.