中国石油集团工程技术研究院于1983年首先研制成功UWB-Ⅰ型水下不分散混凝土絮凝剂,2003年又开发了换代产品UWB-Ⅱ型混凝土絮凝剂,并获国家发明专利(专利号:200710065586X),使水下不分散混凝土在施工性能、抗分散性能、流动性能、塌落度损失控制及物理力学性能等方面都有了突破性的提高。中国石油天然气集团标准Q/SY 1092-2009《水下不分散混凝土施工技术规范》的颁布实行,为水下不分散混凝土施工提 China Petroleum Engineering Research Institute of Technology in 1983 first successfully developed UWB-Ⅰ underwater undispersed concrete flocculant, in 2003 and developed a replacement product UWB-Ⅱ-type concrete flocculant, and won the national invention patent (Patent No .: 200710065586X ), So that underwater undispersed concrete has a breakthrough improvement in construction performance, anti-dispersion performance, flow properties, slump loss control and physical and mechanical properties. China National Petroleum Corporation standard Q / SY 1092-2009 “underwater non-dispersible concrete construction specifications” promulgated for the construction of underwater non-dispersive concrete