I believe the test results of some water reducing agent rather than the product manual instructions marvelous product, or even a very good product test results for a specific project may not be suitable, but on the contrary, some products even though the test results are not very outstanding , there may be just an engineering concrete material formulated to meet the requirements. In addition, polycarboxylate liquor production, due to changes in raw materials, test results when tenders are not representative of the actual implementation of the project of. GB50119-2003 "concrete admixture technical specifications" in "2.1.4" clearly states: raw materials used in concrete mixed with additives such as cement, sand, stone, admixtures, additives shall comply with national regulations in force in the relevant standards; When the trial with mixed concrete admixtures, polycarboxylate liquor should be used raw material used by the project, polycarboxylate liquor prices, test items shall be determined according to the design and construction requirements, testing conditions and construction under the same conditions, when the project of the raw materials or concrete performance requirements change, there should be another trial with the test. Superplasticizer can reduce the quality of concrete water-cement ratio, Guangxi polycarboxylate liquor, reducing the slump loss of concrete, improve workability, to impart high density and excellent performance of concrete construction. Among the many series superplasticizer, the polycarboxylate superplasticizer adapt to a wide range of high water reducing low slump loss, low dosage, environmental protection, etc. [1]. According to the current knowledge and understanding of the reducing agent, reducing agent is made by means of a surfactant. Polylactic acid liquor equipment, high-strength construction materials (certified), polylactic acid liquor by Linyi City Building Material Co., high-strength. 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.