Use of Biochar in Asphalts: Review

Hugo Alexander Rondón-Quintana, Fredy Alberto Reyes-Lizcano, Saieth Baudilio Chaves-Pabón, Juan Gabriel Bastidas-Martínez and Carlos Alfonso Zafra-Mejía
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Hugo Alexander Rondón-Quintana: Facultad del Medio Ambiente y Recursos Naturales, Universidad Distrital Francisco José de Caldas, Bogotá 111711, Colombia
Fredy Alberto Reyes-Lizcano: Centro de Estudios en Carreteras, Transportes y Afines (CECATA), Facultad de Ingeniería, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
Saieth Baudilio Chaves-Pabón: Programa de Ingeniería Civil, Facultad de Estudios a Distancia, Universidad Militar Nueva Granada, Cajicá 250240, Colombia
Juan Gabriel Bastidas-Martínez: Facultad de Ingeniería, Universidad Piloto de Colombia, Bogotá 110231, Colombia
Carlos Alfonso Zafra-Mejía: Facultad del Medio Ambiente y Recursos Naturales, Universidad Distrital Francisco José de Caldas, Bogotá 111711, Colombia

Sustainability, 2022, vol. 14, issue 8, 1-12

Abstract: The growth of the world population has increased the production of wastes. These are generally incinerated or deposited in outdoor landfills, which impacts the environment and affects human health. A technique that allows to reuse of wastes and diminishes adverse effects on the environment is pyrolysis. Through this technique, a material known as Biochar (BC) is produced, which has proven to have interesting physical-chemical properties for it to be used as an asphalt modifier, and simultaneously, helps to mitigate negative impacts on the environment. The foregoing article presents a bibliographical review on the use of BC as a modifier for asphalt binders and asphalt mixes. This has the purpose of becoming a starting point for future research efforts. In the reviewed literature, there was no review found on this topic. In general terms, BC increases the performance of asphalt binders in high-temperature climates, and tends to reduce its performance in low-temperature ones. Few studies have evaluated the performance of BC on asphalt mixes and the long-term properties associated with durability. Based on the reviewed literature, at the end of the article, recommendations are provided for future study topics.

Keywords: Biochar; asphalt binder; asphalt mixture; modified asphalt; review (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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