Title
Influence of fiber orientation on the mechanical responses of engineering cementitious composite (ECC) under various loading conditions
Author
Tawfek, Abdullah M. (Shandong University; Sana'a University)
Ge, Zhi (Shandong University)
Yuan, Huaqiang (Shandong University)
Zhang, Ning (Tsinghua University)
Zhang, Hongzhi (Shandong University)
Ling, Yifeng (Shandong University)
Guan, Yanhua (Shandong University)
Šavija, B. (TU Delft Materials and Environment) 
Date
2023
Abstract
The mechanical performance of engineered cementitious composite (ECC) depends greatly on fiber orientation and distribution. In this paper, the effect of fiber orientation on ECC's mechanical properties was investigated using two different casting methods: a flow-induced casting was used to enhance the fiber orientation within ECC mixture and compared with the conventional casting. The fiber orientation was quantified using scanning electron microscope (SEM) and image processing. Mechanical tests on the specimens with various fiber orientations were performed. The failure processes of ECC specimens under compression and tensile tests were analyzed using digital image correlation (DIC) technique. The proposed flow-induced casting enhanced the fiber alignment in the flow direction. Consequently, ECC's mechanical properties were significantly improved with more finer cracks under uniaxial loading. In conclusion, the proposed flow-induced casting can be adopted as an effective approach to improve fiber bridging efficiency in ECC.
Subject
Engineering cementitious composite
Fiber orientation
Mechanical behavior
Digital image correlation
Crack width
To reference this document use:
http://resolver.tudelft.nl/uuid:c898a66e-b760-4528-aaa5-e82212694e09
Embargo date
2023-07-01
ISSN
2352-7102
Source
Journal of Building Engineering, 63 (B)
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Part of collection
Institutional Repository
Document type
journal article
Rights
© 2023 Abdullah M. Tawfek, Zhi Ge, Huaqiang Yuan, Ning Zhang, Hongzhi Zhang, Yifeng Ling, Yanhua Guan, B. Šavija