Compartir
Título
Use of plastic scrap in asphalt mixtures added by dry method as a partial substitute for bitumen
Autor(es)
Materia
Plastic scrap
Asphalt mixtures
Marshall test
Moisture damage
Resilient modulus
Rutting
Clasificación UNESCO
3321.01 Materiales Asfálticos
3305.29 Construcción de Carreteras
Fecha de publicación
2019-03-13
Citación
Movilla-Quesada, D., Raposeiras, A. C., Silva-Klein, L. T., Lastra-González, P., & Castro-Fresno, D. (2019). Use of plastic scrap in asphalt mixtures added by dry method as a partial substitute for bitumen. Waste Management, 87, 751-760. doi:10.1016/j.wasman.2019.03.018
Resumen
[EN] In recent decades, the generation of plastic waste has increased substantially worldwide, with the result
that more of such waste is introduced into the environment. Currently, most polymers (polyethylene
terephthalate, polyethylene, polyvinyl chloride, and others) are recycled. However, some are rejected
for recycling in the primary separation processes due to their physical condition, contamination, or size.
These materials are called plastic scrap.
In this research, the use of plastic scrap added by dry method was evaluated as a replacement for bitumen
in asphalt mixtures. Two sizes of plastic scrap, coarse and fine, were considered. An AC16S semidense
mixture was designed for this purpose, with a 10% reduction in binder, and 10% and 20% of plastic
scrap binder was added in coarse and fine sizes.
The results obtained in the Marshall stability and flow test showed reduced moisture damage, greater
indirect tensile strength, higher air void content, and a 2% decrease in the conserved tensile strength ratio
while the same usage field as the conventional mixture was maintained. Meanwhile, significant
decreases in plastic deformations, as compared to traditional values, were obtained from resilient modulus
and rutting tests.
Descripción
Fuente: Waste Management
URI
ISSN
0956-053X
DOI
10.1016/j.wasman.2019.03.018
Versión del editor
Colecciones
Ficheros en el ítem
Tamaño:
1.034Mb
Formato:
Adobe PDF
Descripción:
Artículo