01475472

Component

https://doi.org/10.3141/2370-18

http://scholar.google.com...rari&publication_year=2013

Although steel orthotropic deck is currently the most widely adopted solution for long-span bridges, the poor adhesion to the upper asphalt layers still represents a serious problem without a clear solution. In recent decades many techniques that involve the use of special bituminous bonding coats, reinforced asphalt membranes, net-reinforced steel deck surfaces, or epoxy asphalt binders have been applied, with varying results, to improve the level of adhesion of the asphalt pavement to the steel surface. In this experimental study, two such techniques were adopted to investigate the shear resistance of steel–asphalt pavement systems. The first technique used epoxy asphalt both as a bonding coat and as a binder of the upper asphalt layer, while the second technique involved the use of a reinforced asphalt membrane that was applied on the steel deck before overlaying with conventional hot-mix asphalt (HMA). The Ancona Shear Testing Research and Analysis shear test device was used to evaluate the shear resistance of different types of HMA–steel interfaces and to investigate the effects of temperature and normal stress. The results have been compared with the shear properties of bitumen-coated interfaces, studied in previous research. The results showed that epoxy asphalt guaranteed high performance regardless of the test temperature. However, the shear resistance of the system with the asphalt membrane was lower than with the epoxy asphalt, although it was higher than the resistance of bitumen-coated interfaces at high temperatures.

01500280

13-1938

English

pp 145–150

2013

Transportation Research Record: Journal of the Transportation Research Board

9780309286886

Print

Figures (8) ; Photos; References (18) ; Tables (4)

Adhesion; Asphalt pavements; Binders; Bridge decks; Epoxides; Hot mix asphalt; Long span bridges; Orthotropic plates; Pavement layers; Shear strength; Steel bridges

Bridges and other structures; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways

PRP, TRIS, TRB, ATRI

Feb 5 2013 12:27PM

• Analysis of Five-Point Bending Test for Multilayer Surfacing System on Orthotropic Steel Bridges
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• Evaluation of Low-Temperature Properties of Asphalt Binders and Mixtures
• Evaluation of Rejuvenator’s Effectiveness with Conventional Mix Testing for 100% Reclaimed Asphalt Pavement Mixtures
• Evolution of the Crossover Modulus with Oxidative Aging: Method to Estimate Change in Viscoelastic Properties of Asphalt Binder with Time and Depth on the Road
• First Observation of Blending-Zone Morphology at Interface of Reclaimed Asphalt Binder and Virgin Bitumen
• Linear and Nonlinear Viscoelastic Analysis of Bituminous Mortar
• Low-Temperature Oxidation Kinetics of Asphalt Binders
• Mechanism of Crumb Rubber Modifier Dissolution into Asphalt Matrix and Its Effect on Final Physical Properties of Crumb Rubber–Modified Binder
• Quality and Durability of Warm Rubberized Asphalt Cement in Ontario, Canada
• Recovery and Laboratory Testing of Asphalt Emulsion Residue: Application of Simple Aging Test and 4-mm Dynamic Shear Rheometer Test
• Recycled Asphalt Shingle Binder Characterization and Blending with Virgin Binders
• Revision and Further Validation of Surface Performance-Graded Specification for Chip Seal Binders
• Significance of Mixture Parameters on Binder Aging in Hot-Mix Asphalt Mixtures
• Simplification of Linear Amplitude Sweep Test and Specification Parameter