Question

The minimum cement content $\left(\frac{kg}{m^3}\right)$ for a pre-specified strength of concrete (using standard notations) premised on 'free water-cement ratio' will be as

• A. $1-\frac{C}{1000S_C}-\frac{W}{1000}$
• B. $\frac{\text{Water content}}{\text{Water cement ratio}}$
• C. $\text{Water content}\times \text{Water cement ratio}$
• D. $\frac{100F}{C+F}$

Answer 1

The correct option is B $\frac{\text{Water content}}{\text{Water cement ratio}}$

$\left[\text{Free-water cement =}\frac{\text{Water content}}{\text{Water cement ratio}}\right]$