IMPACTS OF LIFT JOINTS AND AGGREGATE SIZES ON TENSILE PROPERTIES OF RCC

摘要：

　　To provide an better understanding on how to obtain correct design parameters to ensure an accurate RCC dam safety analysis,this paper studies the potential impacts of coarse aggregate sizes and lift joints on the tensile strength,ultimate tensile strain and tensile modulus of elasticity of RCC.The following major conclusions are supported by the experimental results: 1) The tensile strengths of RCC are more susceptible to the lift joint weakening effect than the ultimate tensile strains;2) The aggregate size effect has a significant impact on evaluating the design tensile strength of RCC;3) Compared to tensile strengths,the tensile moduli of elasticity of RCC are much less susceptible to the existence of lift joints;4) Compared to tensile strengths,the tensile moduli of elasticity of RCC with or without lift joints are basically independent of aggregate size effect.

关键词： RCC Coarse aggregate Lift joint Tensile strength Modulus of elasticity

作者: Sijia Zhang Xiaobin Lu Guojin Ji Wang Yang Xiulin LI

作者单位: China Institute of Water Resources and Hydropower Research, Beijing 100038, China China Institute of Water Resources and Hydropower Research, Beijing 100038, China;State Key Laborato

会议类型: 国际会议

会议名称: the 8th International Symposium on Roller Compacted Concrete (RCC) Dams(第八届国际碾压混凝土大坝国际研讨会)

会议地点: 昆明

会议语种:英文

页码: 73-82

在线出版日期: 2019-11-11（万方平台首次上网日期，不代表论文的发表时间）