The ratio of cement to water in a concrete mixture, which ultimately determines the concrete's strength. More water in the mix results in a weaker concrete. Concrete mixes are identified in ratio [..]

A numerical index of the relative proportions of water and cement in a concrete mixture. The ratio of the amount of water, exclusive only of that absorbed by the aggregates, to the amount of cement in [..]

The strength of a concrete mixture depends on the water cement ratio. The water and cement form a paste. If the paste is made with more water, the concrete becomes weaker. Traditionally, concrete mixes have been identified in terms of the ratio of cement to fine aggregate to coarse aggregate. For example, the ratio 1:2:4 refers to a mix which consi [..]