Mutual Effect of Textile Binding and Coating on the Structural Performance of TRC Beams
Publication: Journal of Materials in Civil Engineering
Volume 32, Issue 8
Abstract
This study investigates the mutual effects of binding and pretreatment procedure (coating) on the structural performance of textile-reinforced concrete (TRC) composite beams under flexural loading. The goal is to choose an optimal reinforcing textile configuration that yields a better design of the textile performance. The investigation was performed by correlating between the microstructural mechanism, which is associated to the textile configuration, and the macrostructural response according to various structural parameters, such as the ultimate load, the relative structural ductility, and the equivalent fracture energy. An experimental investigation is presented on four different binding types of warp-knitted structures: pillar and counterlaid tricot, characterized by relatively circular roving cross section, and plain and tricot, characterized by elliptical roving cross section. Each type was investigated in uncoated configuration and by coating with 50% styrene-butadiene rubber (SBR). In total, 32 TRC beam specimens were designed, cast, and monotonically loaded. Results demonstrated that generally the type of binding is significantly pronounced in uncoated textiles and that coating considerably improves the structural performance of all types of textile binding. It is also concluded that relatively flat and elliptical cross-sectional areas of the rovings are preferable in the case of uncoated textile, while in the case of coated textile the preferable binding configurations are the ones characterized by a relatively circular roving cross section.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
This research is funded by the Bundesministerium für Bildung und Forschung–Ministry of Science and Technology (BMBF–MOST) Joint German–Israeli Water Technology Research Program, Grant No. WT1602/02WIL1452. Ms. Perry would like to acknowledge the support of the Young Scientists Exchange Program (YSEP) of the BMBF–MOST Cooperation in Water Technology Research. The authors are also grateful for the help of the technical and administrative staff of Institut fuer Textiltechnik of RWTH (ITA-RWTH) Aachen University.
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Published In
Journal of Materials in Civil Engineering
Volume 32 • Issue 8 • August 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Jun 26, 2019
Accepted: Feb 24, 2020
Published online: Jun 2, 2020
Published in print: Aug 1, 2020
Discussion open until: Nov 2, 2020
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