Recyclability Potential of Induction-Healable Porous Asphalt Mixtures

Abstract

The potential recyclability of healable asphalt mixtures has been analyzed in this paper. A healable porous asphalt mixture with steel wool fibers was artificially aged in order to assess its recyclability. This mixture was used as reclaimed asphalt in a new porous asphalt mixture, whose mechanical and healing capacities were studied and compared with the behavior of the original porous asphalt mixture. The quantity of reclaimed asphalt mixture added was 40%; besides, in order to recover the properties of the aged binder, and incorporate the last advances in the recyclability of bituminous mixtures, a rejuvenator was also added (SYLVAROAD™ RP1000). The voids test, Cantabro particle loss test, water sensitivity test, stiffness test, and fatigue resistance test were performed to mechanically study the experimental mixture, while the last one (fatigue resistance test) was also used to assess its healing capacity. The results have shown that the healing capacity of the original healable porous asphalt mixture is maintained with similar mechanical performance.

Rheological Performance Analysis of Different Preventive Maintenance Materials in Porous High-Viscosity Asphalt Pavements

“…Porous asphalt pavements are extensively applied in wet and rainy zones because of their benefits, such as improved drainage, reduced runoff, enhanced skid resistance, noise reduction, extended pavement life and environmental sustainability [1,2]. However, porous pavements are highly susceptible to environmental factors, especially humidity and temperature conditions [3][4][5][6].…”

Porous Asphalt Modification using Different Types of Additives: A Review

“…In the PA mixture, which is its normal form of failure, both processes create ravaging problems, dramatically shortening its useful life. In fact, the PA mixture may display issues with clogging, these mixtures need to be laid in places with a high proportion of rainy days; otherwise, voids are packed with dust and stones, and water will not be able to flow into the PA mixture afterwards [6]. The PA mixture demonstrates the lowest rutting resistance as part of the continuing the state of rainfall.…”