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目前,聚羧酸系减水剂在我国已成功应用于大坝、高铁、高速公路等国家大型水利、桥梁、核电、铁路工程中。聚羧酸系高性能减水剂,具有良好的综合技术性能优势及环保特点,符合现代化混凝土工程的需要。然而,随着高速铁路工程的迅猛发展,聚羧酸减水剂在实际施工过程中出现了诸多问题。这些问题的存在不但影响到了试验工作的开展,而且还大大削弱了工地试验室控制铁路工程质量的作用。笔者结合近几年工地试验检测工作的实践,对当前聚羧酸减水剂
At present, polycarboxylate superplasticizer has been successfully applied to large-scale water conservancy, bridges, nuclear power and railway projects in China such as dams, high-speed railways and expressways. Polycarboxylate superplasticizer, has a good comprehensive technical performance advantages and environmental characteristics, in line with the needs of modern concrete works. However, with the rapid development of high-speed railway projects, polycarboxylate superplasticizer in the actual construction process has many problems. The existence of these problems not only affected the test work, but also greatly weakened the role of site laboratories in controlling the quality of railway construction. In the light of the practice of site testing and testing in recent years, the author of the current polycarboxylate superplasticizer