水力发电学报2025，Vol.44Issue(7)：1-35,35.DOI:10.11660/slfdxb.20250701
楔入劈拉法测定水工混凝土断裂韧度分析研究
Analysis on hydraulic concrete fracture toughness by wedge splitting method
摘要
Abstract
The wedge splitting method is one of the recommended methods for determining the fracture toughness of hydraulic concrete,and its results are influenced by various factors-such as raw materials,mix proportions,test age,curing temperature and humidity,specimen type and size,and initial crack to height ratio.This article summarizes and examines the performance of this method from four aspects:its determination of fracture toughness of ordinary concrete,large aggregate concrete,and processed concrete specimens,and approximate fracture toughness conversion between standard and non-standard specimen conditions.Then,we suggest specimen types and test methods for its better use to determine fracture toughness,and give an approximate scheme for the conversion,helping standardize its determination of fracture toughness of hydraulic concrete.关键词
水工混凝土/楔入劈拉法/断裂韧度/试件型式/试验方法/非标准条件Key words
hydraulic concrete/wedge-splitting method/fracture toughness/specimen type/testing method/non-standard conditions分类
建筑与水利引用本文复制引用
李庆斌,谭尧升,范冰,胡昱,李列列,谭建军,张延林,刘鑫,谢超鹏,刘问,高小峰,管俊峰,尹阳阳,谭恺炎,张细和,王娟,米正祥..楔入劈拉法测定水工混凝土断裂韧度分析研究[J].水力发电学报,2025,44(7):1-35,35.基金项目
国家自然科学基金项目(52130901 （）
52327812 （）
52009123) （）
