Bonding mechanism of hot-pressed green composites using FTIR spectroscopy
Ejazulhaq Rahimi, Ayane Yui, Yuta Yamachi, Yuma Kawasaki
Abstract. CO2 emission and solid waste generation from cement and concrete constitute major environmental challenges in construction industry. A significant portion of the emission stems from the production of clinker, the primary binder in conventional concrete. Consequently, considerable research efforts have been directed toward the development of environmentally friendly alternative binders. Among these, hemicellulose combined with recycled concrete powder (RCP) processed by hot-pressing has shown great flexural strength. However, the bonding mechanism within the composite is not studied. This study aims to investigate the bonding mechanism in the composite using FTIR. The composite specimens were fabricated at 24 °C and 60 °C of pressing temperatures. Results showed no evidence of chemical reactions. Instead, the hardening is primarily attributed to surface interactions through hydrogen bonding.
Keywords
Recycled Concrete Powder, Hemicellulose, Cellulose, Lignin, FTIR
Published online 1/10/2026, 9 pages
Copyright © 2026 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Ejazulhaq Rahimi, Ayane Yui, Yuta Yamachi, Yuma Kawasaki, Bonding mechanism of hot-pressed green composites using FTIR spectroscopy, Materials Research Proceedings, Vol. 58, pp 147-155, 2026
DOI: https://doi.org/10.21741/9781644903933-20
The article was published as article 20 of the book Emerging Research in Materials for Environment, and Civil Infrastructure
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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