01090258

Component

https://doi.org/10.3141/2057-01

http://scholar.google.com...lark&publication_year=2008

The Virginia Department of Transportation’s (VDOT’s) "Road and Bridge Specifications" combine with various special provisions to cover more than 13 asphalt concrete surface mix designations. Although the specifications offer recommendations about the types of mixes that should be programmed for a given set of facility characteristics, local conditions and experiences heavily influence the predominantly selected mix. As material prices continue to climb without budgets doing the same, local circumstances are more often going to contribute to the selection of the less expensive mixes, especially as long as managers lack a defensible rationale for specifying a more expensive option. This paper describes an economic analysis procedure designed to help engineers and managers select the most cost-effective mix. This procedure includes a methodology for estimating the expected service life for each mix, which is developed by using the systemwide condition ratings for all of Virginia’s Interstate and state primary roads. Through the use of examples with typical project families, the research demonstrates that premium prices for stone matrix asphalt can generally be justified by better performance. In one illustration that uses actual condition and awarded price data, a life cycle cost analysis revealed that the use of stone matrix asphalt in lieu of dense-graded mixtures on Interstates might save VDOT more than $7,500 per lane mile in net-present-value costs.

01114246

English

pp 1-6

2008

Transportation Research Record: Journal of the Transportation Research Board

9780309113267

Print

Figures (2) ; References (12) ; Tables (6)

Alternatives analysis; Asphalt concrete; Asphalt mixtures; Bituminous materials; Dense graded aggregates; Life cycle costing; Methodology; Stone matrix asphalt

Virginia

Finance; Highways; Materials; I31: Bituminous Binders and Materials

TRIS, TRB, ATRI

Jan 29 2008 3:07PM

• Analysis of Hot-Mix Asphalt Lab Compactability Using Lab Compaction Parameters and Mix Characteristics
• Anisotropic Behavior of Hot-Mix Asphalt at Low Temperatures
• Asphalt Material Characterization in Support of Mechanistic–Empirical Pavement Design Guide Implementation in Virginia
• Backcalculation of Dynamic Modulus from Resilient Modulus of Asphalt Concrete with an Artificial Neural Network
• Determination of Asphalt Mixture Creep Compliance at Low Temperatures by Using Thin Beam Specimens
• Effect of Laboratory Data Range Selection in Permanent Deformation Characterization of Asphalt Mixtures
• Fatigue Analysis of Asphalt Mixtures Independent of Mode of Loading
• Forensic Analysis of Premature Surface Cracking in Full-Depth Asphalt Pavements on Plastic Clays
• Fracture-Based Friction Model for Pavement Interface Characterization
• Implementation of Quality Management of Hot-Mix Asphalt with Seismic Methods
• Interface Bonding Between Hot-Mix Asphalt and Various Portland Cement Concrete Surfaces: Laboratory Assessment
• Investigation of Simple Performance Characteristics of Plant-Produced Asphalt Mixtures in Tennessee
• Probabilistic Analysis of Fracture in Asphalt Mixtures Caused by Moisture Damage
• Understanding Internal Structure Characteristics of Foamed Asphalt Mixes with Fracture Face Image Analyses
• Validity of Asphalt Binder Film Thickness Concept in Hot-Mix Asphalt
• Verification of Rutting Predictions from Mechanistic-Empirical Pavement Design Guide by Use of Accelerated Loading Facility Data
• Verification of Superpave Number of Design Gyration Compaction Levels for Georgia
• Viscoelastic Behavior of Hydrated Lime-Modified Asphalt Matrix and Hot-Mix Asphalt Under Moisture Damage Conditions