00731111

Component

https://doi.org/10.3141/1545-11

http://scholar.google.com...Ries&publication_year=1996

The Iowa Department of Transportation (IDOT) received a Strategic Highway Research Program (SHRP) gyratory compactor in December 1994. Since then IDOT has been studying the ability of the compactor to analyze fundamental properties of aggregates such as shape, texture, and gradation by studying the volumetrics of the aggregate blends under a standard load using the SHRP gyratory compactor. This method of analyzing the volumetrics of aggregate blends is similar to SHRP's fine aggregate angularity procedure, which analyzes void levels in noncompacted aggregate blends, which in turn can be used to evaluate the texture or shape of aggregates, what SHRP refers to as angularity. Research is showing that by splitting the aggregate blend on the 2.36-mm (#8) sieve and analyzing the volumetrics or angularity of the separated blend, important fundamental properties can be determined. Most important is structure (the degree and location of aggregate interlock). In addition, analysis of the volumes of the coarse and fine portions can predict the voids in the mineral aggregate and the desired asphalt content. By predicting these properties, it can be determined whether the combined aggregate blend, when mixed with asphalt cement, will produce a mix with structural adequacy to carry the designed traffic load.

This paper appears in Transportation Research Record No. 1545, Asphalt Pavement Surfaces and Asphalt Mixtures.

English

p. 80-88

1996

Transportation Research Record

030905916X

Figures (3) ; References (2) ; Tables (12)

Aggregate gradation; Aggregates; Aggregates by shape and surface texture; Angularity; Asphalt content; Asphalt mixtures; Coarse aggregates; Compactors; Fine aggregates; Interlocking aggregates; Mineral aggregates; Properties of materials; Structural analysis; Texture; Void ratios; Volumetric analysis

Strategic Highway Research Program

Aggregate shape; Gyratory compactors; Structural adequacy; Voids; Volumetric properties

Geotechnology; Highways; Materials; I31: Bituminous Binders and Materials; I36: Aggregates

TRIS, TRB

Feb 3 1997 12:00AM

• ANALYSIS OF THERMAL FATIGUE DISTRESS OF ASPHALT CONCRETE PAVEMENTS
• CHARACTERIZING PROPERTIES OF ASPHALT CEMENT AT COLD TEMPERATURES
• COMPARATIVE FIELD EVALUATION OF SHALE OIL-MODIFIED ASPHALT WITH POLYMER-MODIFIED ASPHALTS
• COMPLEX MODULUS TESTING OF ASPHALTIC CONCRETE: RILEM INTERLABORATORY TEST PROGRAM
• DEVELOPMENT AND EVALUATION OF DYNAMIC FLEXURAL BEAM FATIGUE TEST SYSTEM
• DYNAMIC PROPERTIES OF FIBER-MODIFIED OVERLAY MIXTURE
• EFFECT OF SPECIMEN SIZE ON COMPACTION AND VOLUMETRIC PROPERTIES IN GYRATORY COMPACTED HOT-MIX ASPHALT CONCRETE SPECIMENS
• EVALUATION AND IMPLEMENTATION OF AUTOMATED PROFILOGRAM REDUCTION SYSTEM: APPARE (WITH DISCUSSION AND CLOSURE)
• EVALUATION OF SURFACE TREATMENT PRACTICES IN UNITED STATES
• FIELD VALIDATION OF THERMAL STRESS RESTRAINED SPECIMEN TEST: SIX CASE HISTORIES
• HOT IN-PLACE RECYCLING OF ASPHALT PAVEMENTS: OREGON EXPERIENCE
• INITIAL IMPROVEMENT IN RIDE QUALITY OF JOINTED, PLAIN CONCRETE PAVEMENT WITH MICROSURFACING: CASE STUDY
• MINIMUM VOIDS IN MINERAL AGGREGATE IN HOT-MIX ASPHALT BASED ON GRADATION AND VOLUMETRIC PROPERTIES
• MODIFIED COLD IN-PLACE ASPHALT RECYCLING
• POLYMER-MODIFIED ASPHALT PAVEMENTS IN ONTARIO: PERFORMANCE AND COST-EFFECTIVENESS
• PREDICTION OF ASPHALT CEMENT CONTENT OF COMPACTED HOT-MIX ASPHALT SPECIMENS USING NUCLEAR GAUGES
• PREDICTION OF LOW-TEMPERATURE CRACKING OF ASPHALT CONCRETE MIXTURES WITH THERMAL STRESS RESTRAINED SPECIMEN TEST RESULTS
• SKIDDING CHARACTERISTICS OF PAVEMENT SURFACES INCORPORATING STEEL SLAG AGGREGATES
• SUPERPAVE MODELS: PREDICTING PERFORMANCE DURING DESIGN AND CONSTRUCTION
• TWENTY-FIVE YEARS OF PAVEMENT SMOOTHNESS SPECIFICATIONS IN GEORGIA
• USE OF GEORGIA LOADED WHEEL TESTER TO EVALUATE RUTTING OF ASPHALT SAMPLES PREPARED BY SUPERPAVE GYRATORY COMPACTOR