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Study of Surfactant Additives for the Manufacture of Warm Mix Asphalt: From Laboratory Design to Asphalt Plant Manufacture

[PDF] SolSanchez_WarmMixAsphalt.pdf (2.130Mb)
Identificadores
URI: http://hdl.handle.net/10481/47550
DOI: 10.3390/app7070745
ISSN: 2076-3417
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Autor
Sol-Sánchez, Miguel; Moreno Navarro, Fernando Manuel; Rubio Gámez, María Del Carmen
Editorial
MDPI
Materia
Warm mix asphalt
 
Additives
 
Sustainability
 
Water sensitivity
 
Stiffness
 
Plastic deformation
 
Fecha
2017-07-21
Referencia bibliográfica
Sol-Sánchez, M.; Moreno-Navarro, F.; Rubio-Gámez, M.C. Study of Surfactant Additives for the Manufacture of Warm Mix Asphalt: From Laboratory Design to Asphalt Plant Manufacture. Applied Sciences, 7(7): 745 (2017). [http://hdl.handle.net/10481/47550]
Resumen
Warm Mix Asphalt (WMA), manufactured at a lower temperature than the traditional Hot Mix Asphalt (HMA), allows for important economic and environmental benefits when considered for application in roads. Nonetheless, despite the benefits, its application in pavement for roads is not as widespread as desired from an environmental point of view; more in-depth studies to investigate its development and wider applicability are required. Thus, the present paper aims to contribute to the implementation of this cleaner technology to produce WMA (based on chemical additives) for its application in pavement for roads, including from the stage of the design of the material in the laboratory (by selecting the most appropriate manufacturing temperature and additive type and dosage) to its production in a conventional industrial plant for its use in a trial section. Results demonstrate that it is possible to reduce the manufacturing temperature of asphalt mixtures by using chemical additives, recording similar mechanical behaviour (or even superior) to conventional hot mixtures when specific studies are developed for the optimal design of the WMA. It was also shown that these mixtures could be produced in a conventional asphalt plant without implementing important changes in equipment, which implies a cost-effective solution that can readily be incorporated into traditional plant procedures.
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