Polycarboxylate admixtures to improve the durability of concrete shrinkage and polycarboxylate superplasticizer adaptability problems still exist with the cement, in addition to sand, stone materials, quality, and admixtures such as fly ash, slag and other quality doped poly-carboxylic acid water reducing concrete and efficient performance has a certain influence, attention should be paid. Polycarboxylate superplasticizer dosage problems super. When the excess, will produce segregation, bleeding, crusting, and excessive gas and other undesirable phenomena. Polycarboxylate superplasticizer is strictly prohibited and naphthalene superplasticizer and complex products mixing applications. If mixed, then a good concrete mixture fluidity disappeared. Greatly reduce the slump of concrete and mobility, but also directly affect pumpability and concrete strength. Therefore, the use of polycarboxylate admixture should be used a separate storage device. Otherwise separate piping and metering devices. Polycarboxylate superplasticizer should avoid iron material with long-term exposure due polycarboxylate superplasticizer acidic products often show prolonged contact with ironwork slow reaction will occur, and even make the products become darker in color, black, resulting in product performance decline, the proposed storage polyethylene plastic barrel or stainless steel in order to ensure the stability of product storage. Polycarboxylate superplasticizer belongs to the third generation superplasticizer, with less water is high, good mobility, adaptability, enhanced overall performance slump, etc., can be used in ready-mixed and precast concrete, reducing concrete shrinkage and improve the durability of concrete saving cement, reduce environmental pollution, the use of polycarboxylate admixtures can bring considerable economic and environmental benefits, the proposed comprehensive promotion. This will improve the quality of construction projects are effective.