On quantitative fractographic analysis of high density concretes
Zygmunt Rawicki,
Institute of Building Materials and Structures, Technical University, ul.Warszawska 24, 31-155 Cracow, Poland
Leszek Wojnar,
Institute of Materials Science, Technical University, ul.Warszawska 24, 31-155 Cracow, Poland
Abstract
Fracture toughness tests in mode II for dense concrete with the w/c (water to cement) ratio varying from 0.6 to 0.9 were reported. Profile lines of fractured concrete specimens underwent independent, dual quantitative analysis: using image analyser Quantimet 720 and tablet digitizer coupled with an IBM PC personal computer. The results of fracture toughness tests were compared to fracture profile line parameters. It was demonstrated that the RL-KIIc and RL-JIIc relations evaluated for ordinary concrete were not valid for dense concrete (RL denoted linear roughness, while KIIc and JIIc denoted fracture toughness).
Keywords : dense concrete, fracture toughness, quantitative fractography, surface topography
Pour citer cet article
Zygmunt Rawicki & Leszek Wojnar, «On quantitative fractographic analysis of high density concretes», Acta Stereologica [En ligne], Volume 11 (1992), Number 2 - Dec. 1992, 185-189 URL : https://popups.uliege.be/0351-580x/index.php?id=1922.