Question

Strength of concrete is ___________

(a) \(f_{ck} = K(\frac{c}{C+W+A})^2\)

(b) \(f_{ck} = K(\frac{C+A}{C+W+A})^2\)

(c) \(f_{ck} = K(\frac{C+W}{C+W+A})^2\)

(d) \(f_{ck} = K(\frac{C+W+A}{C+W+A})^2\)

The question was posed to me in an online quiz.

I want to ask this question from Strength and Durability Relationship in portion Durability of Concrete of Concrete Technology

Answer 1

The correct answer is (a) \(f_{ck} = K(\frac{c}{C+W+A})^2\)

To explain: It is the formula to find the Strength of concrete when we have the volume of cement, aggregates and water.