01618025

Component

https://doi.org/10.3141/2573-12

This paper summarizes a case study on developing specification limits and pay adjustments for the longitudinal joint density of asphalt pavements. The existing joint density specifications used by various agencies first were reviewed for the minimum joint density requirements and the corresponding pay adjustments. Laboratory tests were conducted to measure air voids of field cores taken from selected field projects with the saturated surface dry method (AASHTO T 166) and the automatic vacuum-sealing method (AASHTO T 331). Permeability measurements were conducted with a falling-head permeability device. The air voids at the joint were found to be 1.5% to 2% greater than the air voids at the mats adjacent to the joint. For conditions specific to New Jersey, individual testing of the theoretical maximum density of the cores taken at the joint is recommended because of the existence of joint adhesive. The upper limits for air voids at the longitudinal joint are recommended to be 9% for stone matrix asphalt and 10% for hot-mix asphalt, on the basis of the permeability criterion of 150 × 10−5 cm/s reported in previous studies. Furthermore, alternative pay equations for air voids at the longitudinal joint were proposed, with different triggers for retest and for rejectable quality level. A SpecRisk analysis was conducted to confirm that the effective acceptable quality level coincided with the stated acceptable quality level and that the acceptance procedures properly awarded 100% payment at the stated acceptable quality level. The study led to a draft quality assurance specification for longitudinal joint density that was proposed for future implementation.

01594379

16-4848

English

pp 98-106

2016

Transportation Research Record: Journal of the Transportation Research Board

9780309441377

Print

Figures; References; Tables

Asphalt pavements; Incentives; Pavement joints; Performance based specifications; Quality assurance

Construction; Highways; Pavements

TRIS, TRB, ATRI

Nov 29 2016 3:42PM

• Artificial Neural Network Model for Estimating Temporal and Spatial Freeway Work Zone Delay Using Probe-Vehicle Data
• Civil Integrated Management for Highway Infrastructure: Case Studies and Lessons Learned
• Comparing Construction Manager–General Contractor and Federal Early Contractor Involvement Project Delivery Methods
• Comparing Life-Cycle Cost Analysis of Full-Depth Reclamation Versus Traditional Pavement Maintenance and Rehabilitation Strategies
• Cost and Scope Breakdown Structure for Functional Level Estimating of Consultant Fees
• Design and Construction of a Highway Double-Deck Suspension Bridge
• Developing a Chained Fisher Construction Cost Index for a State Highway Agency
• Effect of Silo Storage Time on the Characteristics of Virgin and Reclaimed Asphalt Pavement Mixtures
• Effectiveness of Warranted Asphalt Pavements in Indiana
• Empirical Study of the State of the Practice in Alternative Technical Concepts in Highway Construction Projects
• Evaluation of Additional Laboratory Tests for Design of Full-Depth Reclamation Mixtures Using Foamed Bitumen
• Evaluation of Bolt Holes Fabricated by Using Plasma Arc Cutting
• Implementing Best-Value Procurement for Design–Bid–Build Highway Projects
• Innovative Design, Traffic Management, and Construction of Concrete Overlay Technology: Canadian Municipal Application
• Large-Scale Deployment of Performance-Related Specifications for Jointed Plain Concrete Pavement
• Multiyear Laboratory and Field Performance Assessment of High-Traffic US-49 Full-Depth Reclamation
• Optimizing Paving Mixtures for Durable, Cost-Effective, and Sustainable Concrete
• Use of Pavement Management System Data to Enhance Pavement Performance Specifications in Canada
• Using Parametric Modeling to Estimate Highway Construction Contract Time