TY - JOUR
T1 - Experimental investigation on the mechanical and interfacial properties of fiber-reinforced geopolymer layer on the tension zone of normal concrete
AU - Shirai, Kazutaka
AU - Horii, Junta
AU - Nakamuta, Koki
AU - Teo, Wee
N1 - Funding Information:
We thank the Open Facility, Global Facility Center, Creative Research Institution, Hokkaido University for allowing us to conduct the FTIR analysis of the FRG sample using FT/IR-660Plus. The XRD and SEM analyses were conducted at HBXL and Laboratory of XPS analysis, Joint-use facilities of Hokkaido University. This work was supported by the Maeda Foundation 2020 research grant, the Asahi Glass Foundation 2021 research grant, and the Japan Society for the Promotion of Science KAKENHI Grant Number JP21K18173.
Publisher Copyright:
© 2022 The Author(s)
PY - 2022/12/19
Y1 - 2022/12/19
N2 - 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 thicknesses 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.
AB - 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 thicknesses 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.
KW - Composite member
KW - Fiber-reinforced geopolymer (FRG)
KW - Flexural test
KW - Normal strength concrete
KW - Polyvinyl alcohol (PVA) fiber
UR - http://www.scopus.com/inward/record.url?scp=85141270207&partnerID=8YFLogxK
U2 - 10.1016/j.conbuildmat.2022.129568
DO - 10.1016/j.conbuildmat.2022.129568
M3 - Article
SN - 0950-0618
VL - 360
JO - Construction and Building Materials
JF - Construction and Building Materials
M1 - 129568
ER -