Water reducer is a commonly used concrete admixture, which is used to reduce the Water–cement ratio of concrete and improve the fluidity and workability of concrete. The amount of water reducer used is usually expressed as a percentage of water.

In general, the amount of water reducing agent used is about 1-2% of the total weight of concrete. Assuming that the amount of water reducing agent used is 1% of the total weight of concrete, the following calculation formula can be used to estimate the amount of water equivalent to the water reducing agent:

Water amount equivalent to water reducing agent (kg)=usage amount of water reducing agent (kg)/addition rate of water reducing agent

Among them, the addition rate of water reducing agent is equal to the ratio of the amount of water reducing agent used to the total weight of concrete.

For example, if the total weight of concrete is 1000kg, the amount of water reducing agent used is 10kg, and the addition rate of water reducing agent is 1%, the amount of water equivalent to water reducing agent can be calculated as follows:

Water amount equivalent to water reducing agent (kg)=10kg/0.01=1000kg

Therefore, in this example, 1 kilogram of water reducer is equivalent to 1000 kilograms (1 cubic meter) of water. This means that the use of water reducing agents can reduce the amount of water in concrete by approximately 1000 kilograms.