Observation of steel fibres in concrete with Computed Tomography

被引:48
作者
Balazs, Gyorgy L. [1 ]
Czoboly, Oliver [1 ]
Lubloy, Eva [1 ]
Kapitany, Kristof [2 ]
Barsi, Arpad [2 ]
机构
[1] Budapest Univ Technol & Econ, Dept Construct Mat & Technol, H-1521 Budapest, Hungary
[2] Budapest Univ Technol & Econ, Dept Photogrammetry & Geoinformat, Budapest, Hungary
关键词
Steel fibre; FRC; CT; Fibre deformation; Orientation; Mixing time; CMOD; REINFORCED-CONCRETE; ORIENTATION; POROSITY;
D O I
10.1016/j.conbuildmat.2017.02.114
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Nowadays application of fibre reinforced concretes (FRC) becomes more and more widespread, due to the favourable experiences with their behaviour. As a consequence, an increasing number of studies are published on different aspects of FRC. Several scientific papers indicate the importance of homogeneous distribution of fibres. Our study includes an important step towards the analysis of fibre distribution and fibre orientation with Computed Tomography (CT). In our experimental study effects of different parameters of mixing on the characteristics of FRC are also included. Effect of mixing time and amount of fibres on the post-cracking residual flexural and compressive strengths, orientation and distribution of fibres are discussed. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:534 / 541
页数:8
相关论文
共 25 条
[1]   The influence of fibre orientation on the post-cracking tensile behaviour of steel fibre reinforced self-compacting concrete [J].
Abrishambaf, A. ;
Cunha, V. M. C. F. ;
Barros, J. A. O. .
FRATTURA ED INTEGRITA STRUTTURALE, 2015, 31 (31) :38-53
[2]  
[Anonymous], THESIS
[3]  
[Anonymous], 2008, Computed tomography: from photonstatistics to modern cone-beam CT
[4]  
[Anonymous], 2011, The Image Processing Handbook
[5]  
Balazs G L., 1999, VASBETONEPITES, V1, P3
[6]   Assessment of fibre orientation in ultra high performance fibre reinforced concrete and its effect on flexural strength [J].
Barnett, Stephanie J. ;
Lataste, Jean-Francois ;
Parry, Tony ;
Millard, Steve G. ;
Soutsos, Marios N. .
MATERIALS AND STRUCTURES, 2010, 43 (07) :1009-1023
[7]   Porosity and microstructure characterization of building stones and concretes [J].
Cnudde, V. ;
Cwirzen, A. ;
Masschaele, B. ;
Jacobs, P. J. S. .
ENGINEERING GEOLOGY, 2009, 103 (3-4) :76-83
[8]  
Csorba G., 2006, BETON J, V14, P20
[9]  
Czoboly O., 2015, CONCRETE STRUCTURE, V16, P18
[10]  
Eik M., 2014, THESIS, P104