00819988

Component

https://doi.org/10.3141/1761-02

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

Testing of New Jersey's first acceptance procedure for hot-mix asphalt pavement designed by the Superpave method began in 1998 with the construction of a series of pilot projects. A distinct feature of the prototype specification was the use of a composite pay equation that expressed the pay factor as a function of average quality levels for air voids, thickness, and riding quality. Although the quality under this specification has ranged from good to excellent, a national survey recently conducted by the New Jersey Department of Transportation (NJDOT) suggests that pavement performance is more appropriately characterized by an additive function than by the average of the individual quality measures. A new pay schedule, developed from a combination of performance and analytical data and the opinion survey, produces larger bonuses for superior quality and larger pay reductions for poor quality. NJDOT engineers realized that the original rejectable-quality-level provision based on individual quality measures did not account for the combined effect of deficient quality in two or more quality measures. The use of a composite quality measure not only corrects these deficiencies but also makes it possible to key the pay equation more directly to performance while substantially reducing the complexity of the acceptance procedure as a whole. Consequently, the new procedure is closer to a true performance-related specification and is simpler to understand and apply than its predecessors. The new version of the specification was developed cooperatively through a task force representing NJDOT, the Federal Highway Administration, and several industry associations and is currently under test on a series of pilot projects.

This paper appears in Transportation Research Record No. 1761, Construction 2001.

English

p. 10-14

2001

Transportation Research Record

0309072212

Figures (2) ; References (3) ; Tables (4)

Acceptance tests; Air voids; Asphalt pavements; Construction; Equations; Hot mix asphalt; Payment; Performance based specifications; Quality control; Ride quality; Superpave; Thickness

New Jersey

Construction; Finance; Highways; I52: Construction of Pavements and Surfacings

TRIS, TRB, ATRI

Nov 9 2001 12:00AM

• ALLOCATION OF RISKS UNDER BUILD-OPERATE-TRANSFER DELIVERY APPROACH FOR TRANSPORT INFRASTRUCTURE PROJECTS
• CRITICAL PATH METHOD-LINE OF BALANCE MODEL FOR EFFICIENT SCHEDULING OF REPETITIVE CONSTRUCTION PROJECTS
• DERIVATION OF EQUATION FOR COST OF PREMATURE PAVEMENT FAILURE
• DEVELOPING CRITICAL FIELD PERMEABILITY AND PAVEMENT DENSITY VALUES FOR COARSE-GRADED SUPERPAVE PAVEMENTS
• EFFECT OF FLAT AND ELONGATED COARSE AGGREGATE ON FIELD COMPACTION OF HOT-MIX ASPHALT
• EFFECT OF SUPERPAVE GYRATORY COMPACTOR TYPE ON COMPACTED HOT-MIX ASPHALT DENSITY
• EVALUATING DESIGN-BUILD PROCUREMENT DOCUMENTS FOR HIGHWAY PROJECTS: HOW GOOD ARE THEY?
• EXAMINATION OF OPERATOR VARIABILITY FOR SELECTED METHODS FOR MEASURING BULK SPECIFIC GRAVITY OF HOT-MIX ASPHALT CONCRETE
• FEASIBILITY OF USING PRECAST CONCRETE PANELS TO EXPEDITE CONSTRUCTION OF PORTLAND CEMENT CONCRETE PAVEMENTS
• FIELD CONDITIONING OF SUPERPAVE ASPHALT MIXES
• LESSONS-LEARNED SYSTEM FOR HIGHWAY CONSTRUCTIBILITY
• NIGHTTIME CONSTRUCTION ISSUES
• OVERVIEW OF NATIONAL WOOD IN TRANSPORTATION PROGRAM AND ITS FOCUS ON COMMERCIALIZING PROVEN TECHNOLOGY
• PARIS-LEXINGTON ROAD PROJECT: PROJECT REPORT
• STATISTICALLY BASED METHODS FOR VERIFICATION TESTING
• THEORY BEHIND VIBRATION-BASED, ONBOARD ASPHALT DENSITY MEASURING SYSTEM
• USING PAVEMENT DISTRESS DATA TO ASSESS IMPACT OF CONSTRUCTION ON PAVEMENT PERFORMANCE
• WASHINGTON STATE DEPARTMENT OF TRANSPORTATION SUPERPAVE IMPLEMENTATION