Infrared Detection and CT Analysis on High-Performance Concrete after Exposure to High Temperature

DOI

10.2991/amcce-18.2018.110How to use a DOI?

Keywords

high-performance concrete, polypropylene fiber, high temperature, infrared thermal image, CT.

Abstract

The experiments of high-temperature for C60 high-performance concrete (HPC) mixed with 0% and 0.2% polypropylene fiber (PP) were carried out, respectively. The infrared thermographic inspection technology was applied to detect the damage of concrete after exposure to 20?"?~700?"?, then the relationship among the temperature, the average temperature rise of infrared thermal image and cube compressive strength of concrete was established. The concrete at 20?"?, 300?"?, 400?"?, 500?"? were scanned by X-ray computed tomography (CT) and analysed the CT images. The experimental results show that with the increasing of temperature, the average temperature rise of infrared thermal image is increasing, the cube compressive strength of concrete is decreasing and there are more cracks in the CT images. When the temperature is lower than 400°C, the pores above 10µm of fiber concrete is less than the plain concrete. The polypropylene fibers can improve and restrain the deterioration of concrete in micro-level.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Hongxiu Du
AU  - Yaoyao Xu
PY  - 2018/05
DA  - 2018/05
TI  - Infrared Detection and CT Analysis on High-Performance Concrete after Exposure to High Temperature
BT  - Proceedings of the 2018 3rd International Conference on Automation, Mechanical Control and Computational Engineering (AMCCE 2018)
PB  - Atlantis Press
SP  - 641
EP  - 645
SN  - 2352-5401
UR  - https://doi.org/10.2991/amcce-18.2018.110
DO  - 10.2991/amcce-18.2018.110
ID  - Du2018/05
ER  -