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Temperature effect of asphalt production on the thermo-chemical properties of Kraft lignin
Indexado
WoS WOS:001314439300001
Scopus SCOPUS_ID:85204687965
DOI 10.1080/10298436.2024.2400563
Año 2024
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



Global warming has triggered a series of strategies and efforts to reduce greenhouse gas emissions and increase the reuse and recycling into asphalt pavements. One of these, is the reduction of production temperatures of asphalt mixtures, and the other is using sustainable antioxidants, such as Kraft lignin, with high phenolic content. Kraft lignin is usually mixed at high temperatures without considering the effect of temperature on its antioxidant properties. This research aimed to study the impact of the production temperatures of asphalt mixtures on the thermo-chemical properties of Kraft lignin and its antioxidant capacity. To evaluate these properties, thermogravimetry, infrared spectroscopy, and DPPH tests were done. To validate the results, bitumen-lignin blends were prepared considering representative temperatures for Hot-Mix-Asphalt (HMA), 160 degrees C, and for Warm-Mix-Asphalt (WMA), 135 degrees C. Bitumen-lignin blends were prepared considering 0% and 20% Kraft lignin by total weight bitumen. The blended samples, unaged and aged. were evaluated considering mechanical, rheological, and chemical properties. The main conclusion of the study demonstrated that although Kraft lignin can be used in HMA, using it in mixtures with lower temperatures conserve its properties. WMA production temperatures preserve Kraft lignin's chemical properties, increasing the durability and resilience of bitumen throughout its service life.

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Disciplinas de Investigación



WOS
Construction & Building Technology
Engineering, Civil
Materials Science, Characterization & Testing
Materials Science, Characterization, Testing
Scopus
Civil And Structural Engineering
Mechanics Of Materials
SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Marquez, J. Waldo - Pontificia Universidad Católica de Chile - Chile
2 Fuentes, Valentina - Pontificia Universidad Católica de Chile - Chile
3 Rueda, Eduardo J. Hombre Pontificia Universidad Católica de Chile - Chile
4 Tundidor-Camba, Alain - Pontificia Universidad Católica de Chile - Chile
5 ESCALONA-BURGOS, NESTOR GUILLERMO Hombre Pontificia Universidad Católica de Chile - Chile
6 Norambuena-Contreras, Jose - Universidad del Bío Bío - Chile
Swansea Univ - Reino Unido
Swansea University - Reino Unido
7 GONZALEZ-VACCAREZZA, ALVARO ANDRES Hombre Pontificia Universidad Católica de Chile - Chile

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Financiamiento



Fuente
Fondo Nacional de Desarrollo Científico y Tecnológico
Universidad del Bío-Bío
Agencia Nacional de Investigación y Desarrollo
National Research and Development Agency
National Research and Development Agency (ANID) through the Research Project FONDECYT Regular
Constructora Asfalcura SpA
Department of Engineering and Construction Management of the Pontifical Catholic University of Chile

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos



Agradecimiento
This work was supported by the National Research and Development Agency (ANID) through the Research Project FONDECYT Regular 1211009: Lignin-based recycled asphalt pavements: from nano-scale approach to large-scale application.
This work was supported by the National Research and Development Agency (ANID) through the Research Project FONDECYT Regular 1211009: Lignin-based recycled asphalt pavements: from nano-scale approach to large-scale application. The authors thank the University of Bio-Bio for providing Kraft lignin for this work. Also, we express our gratitude to Constructora Asfalcura SpA for delivering the bitumen used in this research. The authors also thank the LabMAT of the University of Bio-Bio and the Construction Material Laboratory of the Department of Engineering and Construction Management of the Pontifical Catholic University of Chile for supporting the tests done with Kraft lignin. Finally, we thank Patricio, Nicol\u00E1s, Bel\u00E9n, and Vicente for their support in the preparation and evaluation of the bitumen-lignin samples.

Muestra la fuente de financiamiento declarada en la publicación.