Pathways to Formulate Lightweight and Ultra-Lightweight 3D Printable Cementitious Composites (2024-03)¶
10.1016/j.conbuildmat.2024.135874
Zandifaez Peyman, , Sorgenfrei Reese, Li Yucen, ,
Journal Article - Construction and Building Materials, Vol. 424, No. 135874
Abstract
This paper studies the pathways to formulate lightweight and ultra-lightweight 3D printable cementitious composites. A hybrid approach was proposed by combining the advantages of traditional chemical-induced foaming (foaming approach) and lightweight particulate inclusions (synthetic foam approach). A comprehensive experimental program was conducted to evaluate the effects of foaming agents and fly ash cenosphere (FAC) on the printability, microstructure, mechanical and thermal properties of 3D printed samples. The results showed that the hybrid approach could produce a mixture with a density as low as 470 kg/m3 while ensuring good flowability and buildability owing to the lubricating effect of foaming and supporting skeleton formed by FAC. In addition, a three-step homogenization procedure was also developed to predict the effective elastic modulus and thermal conductivity of 3D printable cementitious composites and cementitious foam. The findings of the study highlighted the effectiveness of the hybrid approach in formulating 3D printable ultra-lightweight cementitious composites in thermal insulation and acoustic applications.
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BibTeX
@article{zand_shen_sorg_li.2024.PtFLaUL3PCC,
author = "Peyman Zandifaez and Zhenglai Shen and Reese Sorgenfrei and Yucen Li and Daniel Dias da Costa and Hongyu Zhou",
title = "Pathways to Formulate Lightweight and Ultra-Lightweight 3D Printable Cementitious Composites",
doi = "10.1016/j.conbuildmat.2024.135874",
year = "2024",
journal = "Construction and Building Materials",
volume = "424",
pages = "135874",
}
Formatted Citation
P. Zandifaez, Z. Shen, R. Sorgenfrei, Y. Li, D. D. da Costa and H. Zhou, “Pathways to Formulate Lightweight and Ultra-Lightweight 3D Printable Cementitious Composites”, Construction and Building Materials, vol. 424, p. 135874, 2024, doi: 10.1016/j.conbuildmat.2024.135874.
Zandifaez, Peyman, Zhenglai Shen, Reese Sorgenfrei, Yucen Li, Daniel Dias da Costa, and Hongyu Zhou. “Pathways to Formulate Lightweight and Ultra-Lightweight 3D Printable Cementitious Composites”. Construction and Building Materials 424 (2024): 135874. https://doi.org/10.1016/j.conbuildmat.2024.135874.