Bending and Shear Behavior of 3D Textile Reinforced Reactive Powder Concrete Beams

Author(s): Yong Xun, Lei Hui, Buquan Miao and Lei Jia
Paper category: Proceedings
Book title: 3rd International RILEM Conference on Microstructure Related Durability of Cementitious Composites
Editor(s): Changwen Miao, Wei Sun, Jiaping Liu, Huisu Chen, Guang Ye and Klaas van Breugel
Print-ISBN: 978-2-35158-188-9
e-ISBN: 978-2-35158-189-6
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 283-289
Total Pages : 7
Language : English

Abstract: This paper investigates bending and shear behavior of thin plates made with reactive powder concrete (RPC), reinforced with 3D fiberglass textile fabrics. The mix design of the reactive powder (RPC) is to find the appropriate proportion of RPC. The 3D textile fabric was made by alkali-resistant glass fibers. The PRC mix proportion was first optimized based on compression tests on sixteen orthogonal experimental trial mixes. Bending and shear tests were conducted on thin plates made with the optimized RPC mix and 3D fiberglass textile fabrics. The combination of 3D textile fabric was cast in thin plate, which was 400mm×100mm×25mm in diameter. The first group was four-points bending experiment, comparisons with RPC thin plates with 3D textile net. Another experiment was double shear test, which contained two groups of specimens. The comparisons with two thin plates suggest that the plates with 3D textile performanced better. The test results indicate that 3D fiberglass textile reinforcement significantly improves both bending and shear strength of RPC thin plate. But neither toughness nor ductility seemed changing significantly by textile reinforcement. All the experimental data would be used to discuss the basic principle of 3D fiber concrete mechanical calculations. In addition, RPC should be considered as a perspective, promising high performance concrete in future.

Online publication : 2016
Publication type : full_text
Public price (Euros) : 0.00