01155694

Component

https://doi.org/10.3141/2150-08

http://scholar.google.com...uler&publication_year=2010

The performance-graded (PG) asphalt binder specification was developed to characterize asphalt binder properties that are directly related to the performance of hot-mix asphalt concrete in pavements. However, the PG specification cannot be applied directly to binders for use in chip seals. To address this need, the surface performance grading (SPG) specification was developed with the same equipment required for the PG system but with different limiting values for test parameters at high and low pavement surface design temperatures. NCHRP Project 14-17 used the PG and the SPG systems to grade base binders and recovered residues from five laboratory emulsions and from recovered residues for three emulsions for chip seal construction projects. Two residue recovery methods were used and compared: hot oven evaporation with nitrogen blanket and stirred can with nitrogen purge. Researchers compared the grades from the PG and the SPG systems and found that the grades were similar for the two residue recovery methods but slightly different from the base binder. On the basis of these results, a strawman specification for emulsion residues in chip seals is recommended for use with the stirred can recovery method. The current limiting values in the SPG system were developed for the Texas Department of Transportation. Limiting criteria should be developed for other regions and climatic conditions.

01165463

10-3642

English

pp 63-69

2010

Transportation Research Record: Journal of the Transportation Research Board

9780309142816

Print

Figures (1) ; References (14) ; Tables (3)

Asphalt emulsions; Bituminous binders; Chip seals; Specifications

Emulsion recovery methods; Performance grade

Highways; Maintenance and Preservation; Materials; Pavements; I31: Bituminous Binders and Materials; I61: Equipment and Maintenance Methods

TRIS, TRB, ATRI

Jan 25 2010 11:51AM

• Costs and Benefits of Thin Surface Treatments on Bituminous Pavements in Kansas
• Distributed Fiber-Optic Sensing and Integrity Monitoring
• Equipment Replacement at Departments of Transportation: Prioritization Measures, Software Tools, and Supplementary Data
• Evaluation of Performance and Cost-Effectiveness of Polymer-Modified Chip Seals
• Failure and Repair of Deck Closure Pour on Interstate 81
• Fiber-Reinforced Polymer Pile Repair Incorporating Cathodic Protection
• Implementation of Level-of-Service Component for Performance-Based Road Maintenance Contracts
• Matter Element Analysis for Optimal Timing and Preventive Maintenance of Pavements
• Optimal Distribution of Rolling Coverage in Multiple Chip Seals
• Parameters Influencing Performance of Fiber-Reinforced Polymer Systems in Concrete
• Pavement Preservation Funding and Performance in Washington State
• Pavement Preservation: Performance Goal and Its Implications
• Performance Evaluation of Asphalt Pavement Preservation Activities
• Threshold Identification and Field Validation of Performance-Based Guidelines to Select Hot-Poured Crack Sealants