Question

If $P,Y$ and $Z$ are the weights of the cement, fine aggregates and coarse aggregates respectively and $W/C$ is the water cement ratio, the minimum quantity of water to be added to first batch, is obtained by the equation.

• A. $0.1P+0.3Y+0.1Z=\left(W/C\right)\times P$
• B. $0.2P+0.5Y+0.1Z=\left(W/C\right)\times P$
• C. $0.3P+0.1Y+0.01Z=\left(W/C\right)\times P$
• D. $0.5P+0.3Y+0.01Z=\left(W/C\right)\times P$

Answer 1

The correct option is A $0.1P+0.3Y+0.1Z=\left(W/C\right)\times P$

The minimum quantity of water added to first batch = $10$% of cement content + $30$ % of fine aggregate + $10$% of coarse aggregate
$\left(W/C\right)\times P=0.1P+0.3Y+0.1Z$
$P$= Weight of the cement
$Y$= Weight of the fine aggregates
$Z$= Weight of the coarse aggregates