Improved Interlayer-Bonding of 3D Printed Fiber-Reinforced Geopolymer by Healing-Agents (2025-01)¶
Liu Xinhao, ,
Journal Article - Journal of Sustainable Cement-Based Materials, pp. 1-21
Abstract
The weak interlayer bonding significantly impacts the mechanical properties of 3D printed fiber reinforced geopolymer (3DP-FRG). Three mineral-based and one polymer-based interlayer healing agents (IHAs) were used to enhance the interlayer self-healing properties. The effects of IHAs on interlayer bonding properties, self-healing mechanisms, and environmental impacts were investigated. The results showed that IHAs improved the 28 day interlayer tensile and shear bonding strength by 38.87% and 22.19%, and reduced 1, 3, and 7 days shrinkage by 43.61%, 22.17%, and 9.10%. The main interlayer self-healing products were geopolymer gel, calcite, and albite. Mineral-based IHAs and precursors dissolved rapidly, forming free [SiO4]4- and [AlO4]5- monomers. Polymer-based IHA prevented interlayer water evaporation and accelerated the migration rate of monomers. The lifecycle assessment from ‘cradle to gate’ indicates that 3DP-FRG has a minimal environmental impact. Carbon emissions and embodied energy of 1m3 3DP-FRG could reach 313 kg and 900 MJ.
¶
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BibTeX
@article{liu_hu_guo.2025.IIBo3PFRGbHA,
author = "Xinhao Liu and Jiajun Hu and Xiaolu Guo",
title = "Improved Interlayer-Bonding of 3D Printed Fiber-Reinforced Geopolymer by Healing-Agents: Properties, Mechanism, and Environmental Impacts",
doi = "10.1080/21650373.2025.2451636",
year = "2025",
journal = "Journal of Sustainable Cement-Based Materials",
pages = "1--21",
}
Formatted Citation
X. Liu, J. Hu and X. Guo, “Improved Interlayer-Bonding of 3D Printed Fiber-Reinforced Geopolymer by Healing-Agents: Properties, Mechanism, and Environmental Impacts”, Journal of Sustainable Cement-Based Materials, pp. 1–21, 2025, doi: 10.1080/21650373.2025.2451636.
Liu, Xinhao, Jiajun Hu, and Xiaolu Guo. “Improved Interlayer-Bonding of 3D Printed Fiber-Reinforced Geopolymer by Healing-Agents: Properties, Mechanism, and Environmental Impacts”. Journal of Sustainable Cement-Based Materials, 2025, 1–21. https://doi.org/10.1080/21650373.2025.2451636.