01552973

Component

https://doi.org/10.3141/2506-10

The study investigated the fatigue performance of rubberized porous European mix (PEM) and control PEM and the influence introducing methods of crumb rubber modifier (CRM) on the fatigue performance of PEM. Four PEM mixtures were used: rubberized PEM in dry process, rubberized PEM in wet process, rubberized PEM with terminal blend binder, and control styrene–butadiene–styrene (SBS) modified PEM. Dynamic modulus and direct tension fatigue tests were performed with an asphalt mixture performance tester system. The fatigue test data were analyzed by the simplified viscoelastic continuum damage theory. There were four main results. First, the rutting resistance of the rubberized PEM in the dry process was similar to that of the wet process but slightly lower than that of the rubberized PEM with the terminal blend binder and SBS modified PEM. Second, the fatigue cracking resistance of the rubberized PEM in the dry process was similar to that of the wet process but significantly lower than those of the rubberized PEM with the terminal blend binder and SBS modified PEM. Third, the use of smaller size CRM and transpolyoctenamer (TOR) in the dry process may have made the properties of the dry process PEM close to those of the wet process. However, the 10% CRM or 4.5% TOR used in the study could not make rubberized PEMs produce longer fatigue life like the control SBS modified PEM. Fourth, the introduction of SBS into rubberized PEM by the terminal blend method may have significantly improved the fatigue performance of PEM.

01596058

15-5986

English

pp 90–99

2015

Transportation Research Record: Journal of the Transportation Research Board

9780309369299

Print

Figures (8) ; References (26) ; Tables (1)

Asphalt mixtures; Binders; Crumb rubber; Fatigue (Mechanics); Porous materials; Viscoelasticity

Viscoelastic continuum damage model

Highways; Materials; Pavements

PRP, TRIS, TRB, ATRI

Dec 30 2014 2:00PM

• Biomodification of Rubberized Asphalt and Its High Temperature Properties
• Characterization of Adhesion and Healing at the Interface Between Asphalt Binders and Aggregate Using Atomic Force Microscopy
• Correlating Laboratory Test Methodologies to Measure Skid Resistance of Pavement Surfaces
• Development of an Analytical Model to Predict the Field Permeability of Asphalt Pavements
• Effect of Mineral Fillers on the Oxidative Aging of Asphalt Binders: Laboratory Study with Mastics
• Effect of Recycling Agents on the Laboratory Performance of Asphalt Mixtures Containing Recycled Asphalt Shingles
• Effect of Water Content on Binder Foaming Characteristics and Foamed Mixture Properties
• Fatigue and Rutting Evaluation of Laboratory-Produced Asphalt Mixtures Containing Reclaimed Asphalt Pavement
• Improved Methodology to Evaluate Fracture Properties of Warm-Mix Asphalt Using Overlay Test
• Laboratory Tests and Numerical Simulations of Mixing Superheated Virgin Aggregate with Reclaimed Asphalt Pavement Materials
• Nanomechanical Evaluation of Vapor-Conditioned and Unconditioned Asphalt
• Numerically Supported Experimental Determination of the Behavior of the Interlayer Bond in Asphalt Pavement
• Precision of the Hamburg Wheel-Track Test
• Quantitative Characterization of Binder Blending: How Much Recycled Binder Is Mobilized During Mixing?
• Use of the Resilient Modulus Test to Characterize Asphalt Mixtures with Recycled Materials and Recycling Agents