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author:

Li, Z. (Li, Z..) [1] | Lei, Z. (Lei, Z..) [2] | Mislang, J.B.B. (Mislang, J.B.B..) [3] | Zhang, G. (Zhang, G..) [4] | Shi, X. (Shi, X..) [5]

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Scopus

Abstract:

Geopolymer concrete holds immense potential as a viable alternative to ordinary Portland cement (OPC) concrete; however, its application for structures has been hindered by its low compressive strength relative to conventional OPC concrete. This study investigates the utilization of carbon-fiber-reinforced polymer (CFRP) tubes to confine fly-ash-based geopolymer (FAGPR) concrete and its graphene oxide (GO)-modified counterpart (GFAGPR), with the aim of enhancing compressive strength. Experimental investigation reveals significant improvements in mechanical strength. Furthermore, we conducted a life cycle assessment (LCA) to compare the environmental impacts and economic costs of OPC, FAGPR, and GFAGPR-concrete-filled CFRP tube composites, and their concrete-only counterparts, over a 100-year service life. The LCA results indicate that the (G)FAGPR composites exhibit significantly lower CO2 emissions than their OPC-tube counterpart. However, the OPC composite is currently the most economic among all candidates. Additionally, the admixed GO not only mitigates the environmental impacts but also reduces the cost of FAGPR-tube composite, likely because of the GO-enhanced strength of core FAGPR concrete reducing the usage of CFRP tube that features higher cost and higher GWP coefficient. © The Author(s) 2025.

Keyword:

CFRP graphene oxide life-cycle analysis nanotechnology resilient infrastructure sustainable concrete

Community:

  • [ 1 ] [Li Z.]National Center for Transportation Infrastructure Durability and Life-Extension, Department of Civil and Environmental Engineering, Washington State University, Pullman, WA, United States
  • [ 2 ] [Li Z.]CarbonSilvanus Company, Pullman, WA, United States
  • [ 3 ] [Lei Z.]National Center for Transportation Infrastructure Durability and Life-Extension, Department of Civil and Environmental Engineering, Washington State University, Pullman, WA, United States
  • [ 4 ] [Lei Z.]School of Architecture and Planning, Yunnan University, Yunnan, Kunming, China
  • [ 5 ] [Mislang J.B.B.]National Center for Transportation Infrastructure Durability and Life-Extension, Department of Civil and Environmental Engineering, Washington State University, Pullman, WA, United States
  • [ 6 ] [Mislang J.B.B.]Washington State Department of Transportation North Central Region, Wenatchee, WA, United States
  • [ 7 ] [Zhang G.]College of Civil Engineering, Fuzhou University, Fujian, Fuzhou, China
  • [ 8 ] [Shi X.]National Center for Transportation Infrastructure Durability and Life-Extension, Department of Civil and Environmental Engineering, Washington State University, Pullman, WA, United States
  • [ 9 ] [Shi X.]Department of Civil and Architectural Engineering, University of Miami, Coral Gables, FL, United States

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Source :

Transportation Research Record

ISSN: 0361-1981

Year: 2025

1 . 6 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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