The in Situ Shear Strength of Roller Compacted Concrete in the Dam of Jinghong Hydropower Station
For roller compacted concrete with the admixtures of grinding limestone powder and water quenched iron slag powder (shortly called double admixture RCC) in dam of Jinghong Hydropower station,the raw materials and the mix proportion of the RCC were studied.Then one experiment on in situ shear strength are carried out between hot rise layer and cold rise layer at the altitude of 573.3 meters of RCC in dam block 23 based on the flat push-situ shear test program.The shear strength indexes of hot rise layer and cold rise layer in RCC for Jinghong Hydropower Station are tested by the experiment subsequently.The study results show that the index for interlayer shear strength of the cold rise layer of RCC with 90 days ages in dam are the friction coefficient of 1.12,and the cohesion of 1.22 MPa.The index for interlayer shear strength of the hot rise layer of RCC with 90 days ages in dam are the friction coefficient of 1.32,and the cohesion of 1.24 MPa.The study results also show that the construction processes meet the requirements of the RCC construction and the integrity of hot rise layer of RCC in the dam is better.
Dam Roller Compacted Concrete in situ shear strength Shear strength Index for interlayer shear strength
Jianbin Xie Jing Fan Tianchun He ChunFeng Tang
Department of Civil Engineering, Yunnan University, Kunming, 650091, P.R.China yunnan University of Nationalities, Kunming, 650031, P.R.China China Petroleum Engineering &Construction Corporation Beijing Engineering Branch, Beijing, 100102, P
国际会议
厦门
英文
968-973
2012-01-04（万方平台首次上网日期，不代表论文的发表时间）