Based on the mechanism of water reducer, with a homemade single design, synthesize a new polycarboxylate water reducer, obtain optimum formula and process for the synthesis: m (maleic anhydride) :m (polyethylene glycol acrylate alcohol monoester) :m (propylene sulfonate) = 1:3:2.4; use 1% of the K2S2O8 as initiator, reaction temperature 85 ℃, reaction time 6h. Trial performance test results showed that: The Polycarboxylate has excellent dispersion capability, good workability, Shiyan polycarboxylate water reducer, the optimum dosage is 0.3% yield Polycarboxylate can significantly reduce cement paste fluidity with time loss. By IR spectroscopy showed that the molecular structure and molecular structure of the synthesized product design consistent. In 5-9 months, high temperature cement factory, transported to the cement mixing station temperature up to 83 ℃. If the day when the maximum temperature exceeds 30 ℃ or more, mixing concrete above C30 will be excessive slump loss phenomenon; the concrete mixture's temperature reached 32 ~ 34 ℃, when transported to the site reached more than 35 ℃. When using Polycarboxylate If you encounter a machine at higher temperatures (above 32 ℃) will produce the phenomenon of excessive slump loss. The factory slump of 220 ~ 230mm, 150mm and only about half an hour after. In Polycarboxylate incoming inspection time, the time of the loss is zero, powder polycarboxylate water reducer, 3h after the loss of 50mm. Then take a special test hot water reducer cement performed immediately, through the time it is still very small. After analyzing the reasons for the following conclusions: the test is too small, in the mixing process temperature come down; and in the production and efficient polycarboxylate water reducer, because the large square, in the beginning of the mixing process cement hydration, hydration heat generation, the temperature mixing material continues to rise, leading to excessive slump loss mix thereof. Polycarboxylate yield, high-strength construction materials (certified), Shiyan Polycarboxylate high-strength building materials provided by the Linyi City Limited. Linyi high-strength building materials Limited (www.lygqjc.cn) Shandong Linyi, concrete and related products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the high-strength building materials led the staff warmly welcome all inquiries negotiations to create a better future for high-strength building materials.