The purpose of adding water reducer is not to delay its setting, but to maintain the fluidity of concrete. On this basis, the hydration time of cement is prolonged. If retarder is simply added, the overall setting time of concrete will be prolonged, but there is no fluidity. How to get it out of the tanker first? Secondly, how to construct a block? The main function of water reducer is to reduce water consumption and increase the fluidity of concrete under the same conditions. Then retarding water reducer, early strength water reducer and antifreeze water reducer are compounded with other retarding water reducers. Early strength, antifreeze ingredients. Polycarboxylic acid water reducer synthesis equipment provides synthesis technology of polycarboxylic acid water reducer to guide production.