Development of biopolymer composites using lignin: A sustainable technology for fostering a green transition in the construction sector. Miao, B. H., Headrick, R. J., Li, Z., Spanu, L., Loftus, D. J., & Lepech, M. D. Cleaner Materials, November, 2024.
Development of biopolymer composites using lignin: A sustainable technology for fostering a green transition in the construction sector [link]Paper  doi  abstract   bibtex   
Developing sustainable construction materials is important to help reduce the anthropogenic impacts of the construction industry. Currently, the production of concrete accounts for 8 % of global carbon emissions. Therefore, alternatives to concrete must be developed, to reduce its use in the future. New construction materials will help to facilitate a green transition as envisioned in global climate initiatives. Materials such as lignin are ideal, as they can be implemented with little additional cost to manufacture construction materials. We introduce a novel material, lignin-based biopolymer-bound soil composite (BSC), which is similar to other BSCs using other types of biopolymers. In addition, a design methodology is presented, which allows the manufacture of lignin-based BSCs with tailored characteristics. Two kinds of lignin — hydrolysis lignin and alkali lignin — were investigated, with five mix designs developed for each type of lignin. The lignin-based BSCs were found to have compressive strength ranging from 1.6 - 8.1 MPa, which allows them to be implemented in non-structural construction applications. Ultimate compressive strength, density, and other parameters were measured, leading to the development of design relationships for lignin-based BSC. The design relationships presented in this study will help introduce lignin-based BSC as a sustainable form of construction.
@article{miao_development_2024,
	title = {Development of biopolymer composites using lignin: {A} sustainable technology for fostering a green transition in the construction sector},
	issn = {2772-3976},
	shorttitle = {Development of biopolymer composites using lignin},
	url = {https://www.sciencedirect.com/science/article/pii/S2772397624000637},
	doi = {10.1016/j.clema.2024.100279},
	abstract = {Developing sustainable construction materials is important to help reduce the anthropogenic impacts of the construction industry. Currently, the production of concrete accounts for 8 \% of global carbon emissions. Therefore, alternatives to concrete must be developed, to reduce its use in the future. New construction materials will help to facilitate a green transition as envisioned in global climate initiatives. Materials such as lignin are ideal, as they can be implemented with little additional cost to manufacture construction materials. We introduce a novel material, lignin-based biopolymer-bound soil composite (BSC), which is similar to other BSCs using other types of biopolymers. In addition, a design methodology is presented, which allows the manufacture of lignin-based BSCs with tailored characteristics. Two kinds of lignin — hydrolysis lignin and alkali lignin — were investigated, with five mix designs developed for each type of lignin. The lignin-based BSCs were found to have compressive strength ranging from 1.6 - 8.1 MPa, which allows them to be implemented in non-structural construction applications. Ultimate compressive strength, density, and other parameters were measured, leading to the development of design relationships for lignin-based BSC. The design relationships presented in this study will help introduce lignin-based BSC as a sustainable form of construction.},
	urldate = {2024-11-26},
	journal = {Cleaner Materials},
	author = {Miao, Barney H. and Headrick, Robert J. and Li, Zhiye and Spanu, Leonardo and Loftus, David J. and Lepech, Michael D.},
	month = nov,
	year = {2024},
	pages = {100279},
}

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