Cited by 29Concrete and Cement Materials ResearchInnovations in Concrete and Construction MaterialsInnovative concrete reinforcement materials

Mechanical and microstructural characterization of carbon nanofiber–reinforced geopolymer nanocomposite based on lunar regolith simulant

Zhang, Rongrong, Zhou, Siqi, Li, Feng, Bi, Yufeng, Zhu, Xingyi·2022·Journal of Materials in Civil Engineering

Abstract

Using the Moon’s natural resources to build infrastructure is the first step toward lunar colonization. Lunar regolith, rich in aluminosilicate, has the potential to prepare geopolymer for construction. In this paper, carbon nanofibers (CNFs) were added to geopolymers based on lunar regolith simulant, aiming at reinforcing mechanical and microstructural properties. A ball-milling method of CNF dispersion into the lunar regolith simulant was evaluated. The mechanical properties of the resulting geopolymer nanocomposites was investigated. X-ray diffractometry, scanning electron microscopy, Fourier transform infrared spectrometry, and mercury intrusion porosimetry were used to characterize the microstructural properties. The results indicated that the mechanical properties were improved by CNFs and that the optimal content was 0.3% by weight. Also, flexural strength, Young’s modulus, flexural toughness, peak displacement, and compressive strength were reinforced by 34.8%, 7.5%, 83.9%, 21.4%, and 13.1%, respectively. Microstructural results suggested that the CNFs acted as nucleation, fillers, and bridges in the nanocomposites, leading to lower porosity, higher energy requirement for failure, and higher mechanical properties, which are considerable for lunar-based construction.

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Registry

Crossref · 10.1061/(asce)mt.1943-5533.0004025

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53 of 53 references verified0 citation errors · 0 not checkable

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  • CNFs significantly improved mechanical properties of BH-1 Lunar regolith simulant geopolymer nanocomposites, with optimal CNF ratio being 0.3 wt%.

    “The study found that CNFs significantly improved mechanical properties, with the optimal CNF ratio being 0.3 wt%.”
  • Enhancements at 0.3 wt% CNF included a 34.8% increase in flexural strength, a 7.5% increase in Young's modulus, an 83.9% boost in flexural toughness, a 21.4% increase in maximum displacement, and a 13.1% rise in compressive strength.

    “Specifically, enhancements included a 34.8% increase in flexural strength, a 7.5% increase in Young's modulus, an 83.9% boost in flexural toughness, a 21.4% increase in maximum displacement, and a 13.1% rise in compressive strength.”
  • Microstructural analysis indicated that CNFs acted as nucleation sites, fillers, and bridges, reducing porosity and increasing the energy required for failure.

    “Microstructural analysis indicated that CNFs acted as nucleation sites, fillers, and bridges, reducing porosity and increasing the energy required for failure [363].”

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Authors
Zhang, R., Zhou, S., Li, F., Bi, Y., & Zhu, X.
Affiliations
  • Beihang University (CN)
  • Shandong Provincial Communications Planning and Design Institute (China) (CN)
  • Tongji University (CN)
Corresponding author
Zhou, Siqi
Venue
Journal of Materials in Civil Engineering
Published
2022-01
Volume
34
Issue
1
ISSN
  • 0899-1561 (ISSN-L)
  • 1943-5533
OpenAlex
W3207205896
Cited by
29
References
54
Citations by year
2026: 6 · 2025: 8 · 2024: 7 · 2023: 5 · 2022: 3
FWCI
1.94
Type
journal article
Language
en
Open access
closed
Locations
Journal of Materials in Civil Engineering (publishedVersion)
Topics
  • Physical Sciences › Engineering › Civil and Structural Engineering › Concrete and Cement Materials Research
  • Physical Sciences › Engineering › Building and Construction › Innovations in Concrete and Construction Materials
  • Physical Sciences › Engineering › Civil and Structural Engineering › Innovative concrete reinforcement materials
Keywords
carbon nanofibers, lunar regolith simulant, flexural strength, compressive strength, microstructure, porosity, nucleation

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