01519356

Component

https://doi.org/10.3141/2445-11

http://scholar.google.com...eifi&publication_year=2014

The use of recycled asphalt shingles (RAS) as a partial replacement for petroleum-based virgin asphalt binder has received considerable attention in recent years. The objective of this study was to conduct a comprehensive laboratory evaluation of asphalt mixtures containing RAS, including stone mastic asphalt. Mixes were designed to meet Superpave® design criteria. A suite of laboratory tests was conducted to capture the mechanistic behavior of the mixtures against major distresses. Laboratory testing evaluated rutting performance, moisture resistance, and fracture resistance of laboratory produced mixtures by using the Hamburg loaded wheel-tracking test, semicircular bending test, and thermal stress restrained specimen tensile strength test. Results of the experimental program indicated that the draft revision of AASHTO PP 53, Standard Practice for Design Considerations When Using Reclaimed Asphalt Shingles (RAS) in New Hot-Mix Asphalt, overestimated the shingle asphalt binder availability factor. In addition, asphalt mixtures containing 5% RAS performed as well as the control asphalt mixture containing no RAS at high, intermediate, and low temperatures. Furthermore, the inclusion of RAS showed an improvement in rutting performance by resulting in a lower rut depth as compared with the control mixture containing no RAS.

01548338

14-4383

English

pp 94–102

2014

Transportation Research Record: Journal of the Transportation Research Board

9780309295338

Print

Figures (8) ; Photos; References (11) ; Tables (4)

Asphalt mixtures; Dynamic modulus of elasticity; Hot mix asphalt; Laboratory tests; Moisture content; Recycled materials; Shingles; Stone matrix asphalt

Hamburg Wheel Tracking Device

Highways; Materials; Pavements; I30: Materials

TRIS, TRB, ATRI

Jan 27 2014 3:31PM

• Analytical Methodology to Determine the Composition of Filler Used in Hot-Mix Asphalt: Case Study
• Effect of Crumb Rubber Dissolution on Low-Temperature Performance and Aging of Asphalt–Rubber Binder
• Effects of Binder Modification on Aggregate Structure and Thermovolumetric Properties of Asphalt Mixtures
• Evaluation of Production, Construction, and Properties of High Reclaimed Asphalt Pavement Mixture
• Laboratory Investigation of Biochar-Modified Asphalt Mixture
• Laboratory Study on Effects of High Reclaimed Asphalt Pavement and Binder Content: Stiffness, Fatigue Resistance, and Rutting Resistance
• Low-Temperature Characterization of Foamed Warm-Mix Asphalt Produced by Water Injection
• New Additive for Use in Hot In-Place Recycling to Improve Performance of Reclaimed Asphalt Pavement Mix
• Statistical Analysis of Influence of Mix Design Parameters on Mechanical Properties of Mixes with Reclaimed Asphalt Pavement
• Strategies for Incorporating Higher Recycled Asphalt Pavement Percentages: Review of Implementation Trials in Northeast States
• Testing of Fine Asphalt Mixtures to Quantify Effectiveness of Asphalt Binder Replacement Using Recycled Shingles