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Cited by 86Concrete and Cement Materials ResearchInnovative concrete reinforcement materialsMicrobial Applications in Construction Materials

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Utilization of sodium carbonate activator in strain-hardening ultra-high-performance geopolymer concrete (SH-UHPGC)

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Lao, Jian-Cong, Xu, Ling-Yu, Huang, Bo-Tao, Zhu, Ji-Xiang, Khan, Mehran, Dai, Jian-Guo·2023·Frontiers in Materials
DOI 10.3389/fmats.2023.1142237
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Abstract

In this study, strain-hardening ultra-high-performance geopolymer concrete (SH-UHPGC) was produced using Na 2 CO 3, Na 2 SiO 3 and their hybridization (1:1 in mole ratio) as alkaline activators. An ultra-high compressive strength was achieved for all the developed strain-hardening ultra-high-performance geopolymer concrete (i.e., over 130 MPa). Strain-hardening ultra-high-performance geopolymer concrete with hybrid Na 2 CO 3 and Na 2 SiO 3 activators showed the highest compressive strength (186.0 MPa), tensile strain capacity (0.44%), and tensile strength (11.9 MPa). It should be highlighted that very significant multiple cracking can be observed for all the strain-hardening ultra-high-performance geopolymer concrete even at a very low tensile strain level (e.g., 0.1%). According to the reaction heat, microstructures, and chemical composition analyses, strain-hardening ultra-high-performance geopolymer concrete with hybrid activators had the highest reaction degree, while that of Na 2 CO 3-based strain-hardening ultra-high-performance geopolymer concrete was the lowest. It was found that the Na 2 CO 3-based strain-hardening ultra-high-performance geopolymer concrete showed the best sustainability, and the strain-hardening ultra-high-performance geopolymer concrete with hybrid Na 2 SiO 3 and Na 2 CO 3 presented the best overall performance (considering the mechanical performance, energy consumption, environmental impact, and economical potential). The findings of this work provide useful knowledge for improving the sustainability and economic potential of strain-hardening ultra-high-performance geopolymer concrete materials.

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Metadata

Authors
Lao, J.-C., Xu, L.-Y., Huang, B.-T., Zhu, J.-X., Khan, M., & Dai, J.-G.
Affiliations
Hong Kong Polytechnic University (HK)
Corresponding author
  • Huang, Bo-Tao
  • Dai, Jian-Guo
ORCID
Venue
Frontiers in Materials
Publisher
Frontiers Media SA
Published
2023-02-06
Volume
10
ISSN
2296-8016 (ISSN-L)
DOI
10.3389/fmats.2023.1142237
OpenAlex
W4319321228
Cited by
86
References
1
Citations by year
2026: 19 · 2025: 20 · 2024: 19 · 2023: 28
FWCI
10.05
Type
journal article
Language
en
Open access
Licence
Locations
  • Frontiers in Materials (publishedVersion, cc-by)
  • PolyU Institutional Research Archive (Hong Kong Polytechnic University) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Hong Kong Polytechnic University (T22-502/18-R)
Topics
  • Physical Sciences › Engineering › Civil and Structural Engineering › Concrete and Cement Materials Research
  • Physical Sciences › Engineering › Civil and Structural Engineering › Innovative concrete reinforcement materials
  • Physical Sciences › Environmental Science › Environmental Engineering › Microbial Applications in Construction Materials
Keywords
sodium carbonate activator, sodium silicate activator, compressive strength, tensile strength, tensile strain capacity, multiple cracking, degree of reaction, heat of reaction, microstructure, sustainability, energy consumption, environmental impact, economic potential

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CoChat. (2026). Citation check: Utilization of sodium carbonate activator in strain-hardening ultra-high-performance geopolymer concrete (SH-UHPGC). https://app.cochat.ai/papers/10.3389/fmats.2023.1142237
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Lao, J.-C., Xu, L.-Y., Huang, B.-T., Zhu, J.-X., Khan, M., & Dai, J.-G. (2023). Utilization of sodium carbonate activator in strain-hardening ultra-high-performance geopolymer concrete (SH-UHPGC). Frontiers in Materials. https://doi.org/10.3389/fmats.2023.1142237