A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Production and Characterization of Biobinders for Pavement from Unpretreated and Pretreated Lignocellulosic Biomass Sources
Physicochemical properties of biobinders from slow pyrolysis of unpretreated and pretreated agricultural lignocellulosic biomass (sugarcane bagasse, straw, and rice husk) were analyzed. Results showed pH of ≤3, water content of 7–10%, and FTIR indicated phenols, ketones, and aromatics as the main constituents of biobinders. Rheological analysis revealed similar behavior of biobinders derived from pretreated sugarcane bagasse (Bio-SBc) and rice husk (Rio-RHc) compared to the neat petroleum-based asphalt binder (AC 30/45). Further characterization via GC-MS and TGA/DTG demonstrated distinct chemical composition and lower thermal stability of Bio-SBc and Bio-RHc compared to AC 30/45. Biobinders are constituted mainly by o-cresol, guaiacol, 3-ethylphenol, creosol and 4-ethylguaiacol with molecular weight distribution between 80–160 g/mol while AC 30/45 is predominantly composed of hydrocarbons.
Production and Characterization of Biobinders for Pavement from Unpretreated and Pretreated Lignocellulosic Biomass Sources
Physicochemical properties of biobinders from slow pyrolysis of unpretreated and pretreated agricultural lignocellulosic biomass (sugarcane bagasse, straw, and rice husk) were analyzed. Results showed pH of ≤3, water content of 7–10%, and FTIR indicated phenols, ketones, and aromatics as the main constituents of biobinders. Rheological analysis revealed similar behavior of biobinders derived from pretreated sugarcane bagasse (Bio-SBc) and rice husk (Rio-RHc) compared to the neat petroleum-based asphalt binder (AC 30/45). Further characterization via GC-MS and TGA/DTG demonstrated distinct chemical composition and lower thermal stability of Bio-SBc and Bio-RHc compared to AC 30/45. Biobinders are constituted mainly by o-cresol, guaiacol, 3-ethylphenol, creosol and 4-ethylguaiacol with molecular weight distribution between 80–160 g/mol while AC 30/45 is predominantly composed of hydrocarbons.
Production and Characterization of Biobinders for Pavement from Unpretreated and Pretreated Lignocellulosic Biomass Sources
RILEM Bookseries
Vasconcelos, Kamilla (editor) / Jiménez del Barco Carrión, Ana (editor) / Chailleux, Emmanuel (editor) / Lo Presti, Davide (editor) / Castro-Alonso, M. J. (author) / Espinosa, L. V. (author) / Vasconcelos, K. (author) / Marcelino, P. Franco (author) / Dos Santos, J. (author) / Da Silva, S. S. (author)
The International Workshop on the Use of Biomaterials in Pavements ; 2024 ; Sao Paolo, Brazil
2nd International Workshop on the Use of Biomaterials in Pavements ; Chapter: 29 ; 267-274
RILEM Bookseries ; 58
2024-09-20
8 pages
Article/Chapter (Book)
Electronic Resource
English
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