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Abstract: New experimental polymer-modified bitumen with a high-vinyl content polymer was fabricated for porous asphalt (PA) mixtures. The bitumen with maximum stability was achieved using storage stability, gelation criteria and physical bitumen tests. A dynamic shear rheometer was used to compare the complex modulus, number of fatigue cycles, yield stress, and non-recoverable creep compliance of the experimental bitumen with a reference virgin bitumen 50/70 and a PMB 45/80-65 binder. PA mixtures were also designed to analyze the abrasion resistance and binder drainage characteristics. It was concluded that the experimental bitumen with 4.5% polymer content showed higher elastic response, better fatigue resistance, and improved rutting behavior than the reference PMB. PA mixtures with the new experimental bitumen exhibited higher abrasion resistance, but underwent higher binder drainage, which was addressed by the incorporation of aramid pulp and glass-hybrid fibers.
Fuente: Construction and Building Materials 2021, 307, 124957
Publisher: Elsevier Ltd
Publication date: 01/11/2021
No. of pages: 12
Publication type: Article
DOI: 10.1016/j.conbuildmat.2021.124957
ISSN: 0950-0618,1879-0526
Publication Url: https://doi.org/10.1016/j.conbuildmat.2021.124957
Consult in UCrea Read publication
ANIK GUPTA
PEDRO LASTRA GONZALEZ
JORGE RODRIGUEZ HERNANDEZ
GONZÁLEZ GONZÁLEZ, MARÍA
DANIEL CASTRO FRESNO
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