大体积水下自密实混凝土的试验研究及应用  

Experimental Studies and Application of Underwater Self-compacting Mass Concrete

作　　者：李凤玉[1] LI Fengyu(Sinohydro Bureau 7 Co.,Ltd.,Chengdu Sichuan 611730)

机构地区：[1]中国水利水电第七工程局有限公司,四川成都611730

出　　处：《四川水力发电》2022年第6期44-47,共4页Sichuan Hydropower

摘　　要：阐述了水下自密实混凝土在锦屏一级水电站左岸导流洞出口围堰工程中的研究与应用过程。通过采用中热硅酸盐水泥、优质Ⅰ级粉煤灰、高效减水剂等技术手段,降低了混凝土的用水量,改善了混凝土的施工性能,有效地保证了混凝土质量,取得了较好的效果。This paper expounds the research and application process of underwater self-compacting concrete in the cofferdam of the diversion tunnel exit on the left bank of JinpingⅠHydropower Station.Through the application of technological measures,such as utilization of moderate-heat cement,class I fly ash with high quality,and effective water-reducing admixture,etc.,the water consumption of concrete was reduced,the workability of concrete mixture was improved,the quality of concrete was guaranteed effectively,and great results have been achieved.

关 键 词：中热硅酸盐水泥 水下自密实混凝土 配合比试验 施工应用 锦屏一级水电站 围堰 

分 类 号：TV7[水利工程—水利水电工程] TV22TV41TV43TV49