AI Article Synopsis
- * The research evaluates how these fibers influence high-temperature, low-temperature, and fatigue performance at various RAP levels, finding that basalt fibers significantly enhance performance more than polyester fibers at 30% and 50% RAP content.
- * Experimental results indicate that basalt fibers can improve the fracture energy of recycled mixtures by up to 13.9% and increase fatigue life by 154%, though both fiber types make compaction harder, with polyester fibers impacting the compaction energy index more.
Article Abstract
Recycled asphalt pavement (RAP) mixtures are widely adopted due to their significant economic and social benefits from utilizing pavement recycling materials. This study incorporates basalt fibers (BF) and polyester fibers (PF) into plant-mixed hot recycled asphalt mixtures to analyze their enhancement effects on the high-temperature, low-temperature, and fatigue performance at different RAP content levels. Additionally, the study investigates the impact of fiber and RAP additions on the compaction characteristics of the mixtures using gyratory compaction tests, aiming to increase the RAP content of plant-mixed hot recycled asphalt mixtures. Experimental results demonstrate that at 30% and 50% RAP content levels, basalt fibers exhibit more pronounced enhancement effects on the performance of recycled asphalt mixtures compared to polyester fibers. Incorporating basalt fibers increases the fracture energy of recycled asphalt mixtures by 8.63% and 13.9%, and improves fatigue life by 154% and 135%, respectively. Moreover, the addition of both types of fibers increases compaction difficulty, with polyester fibers showing a more significant influence on the compaction energy index (CEI).
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11281238 | PMC |
| http://dx.doi.org/10.3390/polym16142016 | DOI Listing |
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