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Experimental investigation on the mechanical and interfacial properties of fiber-reinforced geopolymer layer on the tension zone of normal concrete
Title: | Experimental investigation on the mechanical and interfacial properties of fiber-reinforced geopolymer layer on the tension zone of normal concrete |
Authors: | Shirai, Kazutaka Browse this author →KAKEN DB | Horii, Junta Browse this author | Nakamuta, Koki Browse this author | Teo, Wee Browse this author |
Keywords: | Fiber-reinforced geopolymer (FRG) | Polyvinyl alcohol (PVA) fiber | Composite member | Normal strength concrete | Flexural test |
Issue Date: | 19-Dec-2022 |
Publisher: | Elsevier |
Journal Title: | Construction and building materials |
Volume: | 360 |
Start Page: | 129568 |
Publisher DOI: | 10.1016/j.conbuildmat.2022.129568 |
Abstract: | This study aimed to understand the mechanical and interfacial properties of fiber-reinforced geopolymer (FRG) layer on the tension zone of normal concrete. A trial mix of FRG using local materials obtained in Hokkaido was investigated. Compression and splitting tensile tests on the FRG test pieces were conducted under different mixing procedures, constituents, volume fractions of the polyvinyl alcohol fiber, curing conditions, and ages. Flexural tests using FRG-normal strength concrete (NSC) composite specimens with different FRG layer thick-nesses were carried out. By placing the FRG layer on the tension side of the composite specimen, the flexural strength and energy absorption were significantly increased. The flexural strength for the NSC alone was 3.5 MPa, while the FRG-NSC composite specimens showed higher flexural strengths of 6.1-6.6 MPa. Also, XRD, FTIR, and SEM analyses were carried out for the FRG samples. |
Type: | article |
URI: | http://hdl.handle.net/2115/87551 |
Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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