SFRC纤维分布的实验研究:ct扫描技术与感应法的比较

IF 3.9 3区 工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY
Guillem Rojas, Álvaro Mena-Alonso, Álvaro Muñoz, Terje Kanstad, Miguel A. Vicente
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引用次数: 0

摘要

本文提出了一种可靠、全面的评价纤维混凝土中钢纤维分布的方法。使用了两种技术:计算机断层扫描(CT)和感应测试。这两种技术都被应用于研究钢纤维在从结构元素中提取的样本中的分布,并对结果进行比较分析。首先,对ct扫描和感应法的数据进行处理,得到钢纤维在所有试样中的密度和取向,然后对结果进行比较。然后,进行了一项补充研究,以验证归纳方法,使用手工制作的圆柱体与先前已知的纤维剂量和取向。最后对双能CT技术进行了应用,并对其应用前景进行了讨论。两种方法在测量纤维密度和取向方面都具有相当的准确度和精密度。考虑到ct扫描是参考技术,这种相互一致加强了归纳法的可靠性。此外,作者采用了双能CT,旨在探索这种新技术在纤维增强混凝土研究领域的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental study of the fibre distribution in SFRC: a comparison between CT-scanning techniques and the inductive method

This paper proposes a reliable and comprehensive procedure for the assessment of steel fibre distribution in fibre reinforced concrete. Two techniques have been used: computed tomography (CT) scanning and inductive testing. Both techniques have been applied to study the distribution of steel fibres in specimens extracted from structural elements, carrying out a comparative analysis of the results. Firstly, the data from the CT-scanning and the inductive method have been processed to obtain the density of steel fibres and their orientation in all the specimens, before comparing the results. Then, a complementary study was carried out to validate the inductive method, using hand-made cylinders with a previously known fibre dosage and orientation. Finally, the dual energy CT technique was applied and some conclusions about its potential were discussed. Both methods exhibited comparable accuracy and precision in measuring fibre density and orientation. Considering that CT-scanning is the reference technique, this mutual agreement reinforces the reliability of the inductive method. Additionally, the authors employed the dual energy CT aiming to explore the potential of this novel technique within the domain of fibre reinforced concrete research.

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来源期刊
Materials and Structures
Materials and Structures 工程技术-材料科学:综合
CiteScore
6.40
自引率
7.90%
发文量
222
审稿时长
5.9 months
期刊介绍: Materials and Structures, the flagship publication of the International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM), provides a unique international and interdisciplinary forum for new research findings on the performance of construction materials. A leader in cutting-edge research, the journal is dedicated to the publication of high quality papers examining the fundamental properties of building materials, their characterization and processing techniques, modeling, standardization of test methods, and the application of research results in building and civil engineering. Materials and Structures also publishes comprehensive reports prepared by the RILEM’s technical committees.
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