本文介绍了交通运输部公路科学研究院主编的公路工程聚羧酸高性能减水剂(JT/T769-2009)新标准,希望通过第三代聚羧酸高性能减水剂在高速公路及各级公路混凝土构造物中的推广应用,提高公路工程混凝土构造物的建造质量。 This paper introduces the new standard of highway engineering polycarboxylate superplasticizer (JT / T769-2009), edited by Highway Science Research Institute of Ministry of Transport. It is hoped that through the third generation polycarboxylate superplasticizer on expressway and Grade highway concrete structure in the promotion and application of highway engineering to improve the quality of the construction of the structure.