Some fields of applications of automatic image analysis in civil engineering

被引:47
作者
Chermant, JL [1 ]
Chermant, L [1 ]
Coster, M [1 ]
Dequiedt, AS [1 ]
Redon, C [1 ]
机构
[1] ISMRA, URA CNRS 1317, LERMAT, F-14050 Caen, France
关键词
automatic image analysis; cement; mortar; fibre-reinforced concrete (FRC); stereological parameters; dispersion; homogeneity; granulometry; air-void distances; orientation; simulation;
D O I
10.1016/S0958-9465(00)00059-7
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This paper illustrates the use of automatic image analysis technique to investigate the morphology of cement, concrete and fibre-reinforced concrete. First the methods to be used for powders and secondly for mortar and concrete are introduced. The dispersed phases are characterized by classical morphological parameters: these also enable to accede to the hydration process. The covariances give quantitative information on the homogeneity and dispersion of the different components: gravel, air-voids and cement paste. Air-voids are characterized by granulometric distributions acid their mean free paths. Rose of directions gives information on feature orientation: fibres, microcracks for fibre-reinforced concrete, etc. Finally probabilistic models can be used to simulate the microstructure of such materials. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:157 / 169
页数:13
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