Moisture damage potential of Reclaimed Asphalt Pavement (RAP) in bituminous mixes by ultrasonic pulse velocity

Karati, Sukanta; Roy, Tapas Kumar

doi:10.1016/j.matpr.2022.01.265

Cited by 4 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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]. Under repetitive loading and water vapor, pavements often suffer from aggregate raveling, adhesion failure, pavement cracking and permanent deformation, which seriously affect the pavement service life and driving safety [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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

Xu,

Wang,

Sun

et al. 2024

Materials

View full text Add to dashboard Cite

Porous asphalt pavements are widely used in rainy and wet areas for their skid resistance, noise reduction, runoff minimization and environmental sustainability. Long-term moisture vapor erosion and the destabilization of large pore structures can easily result in pavement problems such as fragmentation, spalling, cracking, and excessive permanent deformation. To this end, four different preventive maintenance materials, including the rejuvenation (RJ), cohesion reinforcement (CEM), polymerization reaction, and emulsified asphalt (EA) types, were selected in this paper to improve the high-viscosity porous asphalt pavement. The effects of the different preventive maintenance materials on the temperature sensitivity, rheological properties and fatigue performance of high-viscosity modified asphalt were evaluated through temperature sweep, frequency sweep, multi-stress creep recovery (MSCR), linear amplitude sweep (LAS), and bending beam rheometer (BBR) tests. The results showed that the four preventive maintenance materials exhibit different enhancement mechanisms and effects. RJ improves the fatigue properties, deformation resistance and low-temperature cracking resistance of aged asphalt by adding elastomeric components; CEM materials are more conducive to increasing the low-temperature crack resistance of aged asphalt; while GL1 and EA improve the viscoelastic behavior of aged asphalt, but the effect of the dosing ratio needs to be considered.

show abstract