Consider the following data for concrete with mild exposure

Water-cement ratio = 0.50; Water = 191.6 litre. The required cement content will be

Concept:

Water Cement ratio (W/C) is the ratio of weight of water to weight of cement in a concrete mix. This ratio decides the strength and workability of concrete.

According to Abram’s law, the strength of a concrete mix is inversely related to the weight ratio of water to cement. Higher W/C ratio, lower the strength but higher is the workability.

Calculation:

\(\frac{W}{C} = 0.5 \Rightarrow C = \frac{W}{{0.5}}\)

Volume of water = 191.6 litre = 0.1916 m3

Mass of water = 0.1916 × 103 = 191.6 kg

For 1 m3 cement content required is,

∴ \(C = \frac{{191.6}}{{0.5}} = 383.2 \;kg\)