00822704

Component

https://doi.org/10.3141/1769-15

http://scholar.google.com...rano&publication_year=2001

The California Department of Transportation (Caltrans) has two primary strategies for the overlay of flexible pavements: overlay with dense-graded asphalt concrete (DGAC) and overlay with asphalt rubber hot mix gap graded (ARHM-GG). Caltrans ARHM-GG overlays typically are designed to be about half the thickness of DGAC overlays for a given set of conditions. The results of a study using heavy vehicle simulator trafficking to evaluate the relative performance of the two strategies for typical California conditions and to analyze the distress mechanisms are presented. The study showed that the half-thickness ARHM-GG designs used by Caltrans are reasonable and that the primary distress mechanism is reflection cracking. Continued hardening of the asphalt-bound and unbound layers was shown to occur in the overlaid pavements. Details of deflection studies are included.

This paper appears in Transportation Research Record No. 1769, Pavement Management, Monitoring, and Accelerated Testing.

English

p. 123-133

2001

Transportation Research Record

030907231X

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

Accelerated tests; Asphalt concrete; Asphalt hardening; Asphalt rubber; Deflection; Dense graded aggregates; Flexible pavements; Gap graded aggregates; Heavy vehicles; Hot mix asphalt; Overlays (Pavements); Pavement distress; Pavement performance; Reflection cracking; Thickness

California

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB, ATRI

Jan 23 2002 12:00AM

• ASSET MANAGEMENT AND PAVEMENT MANAGEMENT: USING COMMON ELEMENTS TO MAXIMIZE OVERALL BENEFITS
• CONTRIBUTING FACTORS OF ANNUAL AVERAGE DAILY TRAFFIC IN A FLORIDA COUNTY: EXPLORATION WITH GEOGRAPHIC INFORMATION SYSTEM AND REGRESSION MODELS
• COUNTING ROUNDABOUTS: A MODEL TO OBTAIN DETAILED ROUNDABOUT TURNING MOVEMENTS
• DATA COLLECTION AND MANAGEMENT OF THE INSTRUMENTED SMART ROAD FLEXIBLE PAVEMENT SECTIONS
• DATA WAREHOUSE DIGITAL ARCHIVING CASE STUDY: NORTH CAROLINA DEPARTMENT OF TRANSPORTATION
• DEVELOPMENT OF A PREVENTIVE MAINTENANCE STRATEGY FOR MINIMIZING ROUGHNESS-RELATED PAVEMENT DAMAGE
• FATIGUE PERFORMANCE OF PIEZOELECTRIC WEIGH-IN-MOTION SENSORS
• GEOGRAPHIC INFORMATION SYSTEM IMPLEMENTATION PLAN FOR PAVEMENT MANAGEMENT INFORMATION SYSTEM: TEXAS DEPARTMENT OF TRANSPORTATION
• GUIDELINES FOR PROBABILISTIC PAVEMENT LIFE CYCLE COST ANALYSIS
• IMPLEMENTATION OF NEW HIGHWAY MANAGEMENT TOOLS IN DEVELOPING COUNTRIES: A CASE STUDY OF TANZANIA
• PAVEMENT PERFORMANCE ANALYSIS APPLYING PROBABILISTIC DETERIORATION METHODS
• PERFORMANCE EVALUATION OF PIEZOELECTRIC WEIGH-IN-MOTION SENSORS UNDER CONTROLLED FIELD-LOADING CONDITIONS
• PUBLIC PERCEPTIONS OF THE MIDWEST'S PAVEMENTS: EXPLAINING THE RELATIONSHIP BETWEEN PAVEMENT QUALITY AND DRIVER SATISFACTION
• PUBLIC PERCEPTIONS OF THE MIDWEST'S PAVEMENTS: POLICIES AND THRESHOLDS FOR PAVEMENT IMPROVEMENT ON RURAL TWO-LANE HIGHWAYS
• STATISTICAL DATA FILTERING AND AGGREGATION TO HOUR TOTALS OF INTELLIGENT TRANSPORTATION SYSTEM 30-S AND 5-MIN VEHICLE COUNTS
• USING THE MINNESOTA ACCELERATED LOADING FACILITY TO TEST RETROFIT DOWEL LOAD TRANSFER SYSTEMS