Wedge Splitting Test on Fracture Behaviour of Fiber Reinforced and Regular High Performance Concretes
The fracture behaviour of three fiber reinforced and regular High Performance Concretes (HPC) is presented in this paper.Two mixes are based on optimization of HPC whereas the third mix was a commercial mix developed by CONTEC ApS (Denmark).The wedge splitting test setup with 48 cubical specimens was used experimentally and the cracked non-linear hinge model based on the fictitious crack model was applied for the interpretation of the results.The stress-crack opening relationships were extracted by using inverse analysis algorithm for various multi-linear softening curves.The fracture mechanics parameters such as crack opening displacement (COD),fracture energy and characteristic length were experimentally determined.Experiments were performed at 1,3,7 and 28 days.Fracture energy,Gf,was found to increasing with age,while the characteristic length,Lch,was found to decrease.
High Performance Concrete Wedge Splitting Test Inverse Analysis Fictitious crack model
Kamil Hodicky Thomas Hulin Jacob W. Schmidt Henrik Stang
Department of Civil Engineering,Technical University of Denmark,Kongens Lyngby,DK-2800,Denmark
国际会议
北京
英文
1-10
2013-06-16（万方平台首次上网日期，不代表论文的发表时间）