00819992

Component

https://doi.org/10.3141/1761-06

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

Within the hot-mix asphalt (HMA) community, it is generally accepted that the proper compaction of HMA is vital for a stable and durable pavement. Low in-place air voids have been shown to lead to rutting and shoving, whereas high in-place air voids have been shown to reduce a pavement's durability through moisture damage and excessive oxidation of the asphalt binder. Recent research has suggested that coarse-graded Superpave-designed mixes are more permeable than conventionally designed pavements at a given air void content. This higher permeability can lead to durability problems. The pavement density at which coarse-graded Superpave mixes become permeable was evaluated by using a field permeability device. On the basis of the data collected, 9.5- and 12.5-mm nominal maximum aggregate size (NMAS) mixtures become excessively permeable at approximately 7.7% in-place air voids, which corresponded to a field permeability value of 100 x 10 to the -5 power cm/s. Mixtures having a 19.0-mm NMAS became permeable at 5.5% in-place air voids, which provided a field permeability value of 120 x 10 to the -5 power cm/s. Coarse-graded mixes having an NMAS of 25.0 mm became permeable at 4.4% air voids, which corresponded to a field permeability value of 150 x 10 to the -5 cm/s.

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

English

p. 41-49

2001

Transportation Research Record

0309072212

Figures (12) ; References (9) ; Tables (1)

Aggregate gradation; Air voids; Asphalt mixtures; Coarse aggregates; Durability; Hot mix asphalt; Permeability; Superpave

Design; Geotechnology; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials; I36: Aggregates

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
• 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
• NEW JERSEY'S SUPERPAVE SPECIFICATION: THE NEXT GENERATION
• 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