00743195

Component

https://doi.org/10.3141/1590-12

http://scholar.google.com...Epps&publication_year=1997

Aggregate properties and gradations have been shown to have a significant impact on the strength and performance of hot mix asphalt (HMA) mixtures. Strength properties, such as the resilient modulus and tensile strength, and performance properties, such as moisture sensitivity, permanent deformation, and low-temperature cracking, play a major role in the field performance of HMA mixtures. However, it is believed that by changing the aggregate gradation and the asphalt binder, a desirable HMA mixture can be achieved for any source of aggregate. The data and analysis of a laboratory research study that evaluated four gradations and four asphalt binders in conjunction with five sources of Nevada aggregates are summarized. The measured material properties include the Superpave binder and aggregate properties, the strength properties, and the permanent deformation and low-temperature cracking of the mixtures. The data analysis indicated that the resilient modulus and tensile strength tests can be used in lieu of the more complicated triaxial repeated-load test to ensure against rutting and that the binder property can be used to ensure against low-temperature cracking.

This paper appears in Transportation Research Record No. 1590, Asphalt Mixture Quality, Characteristics, and Performance.

English

p. 99-107

1997

Transportation Research Record

0309061636

Figures (1) ; References (8) ; Tables (9)

Aggregate gradation; Aggregates by source; Binders; Cracking; Deformation; Hot mix asphalt; Laboratory studies; Low temperature; Low temperature tests; Modulus of resilience; Moisture content; Performance; Properties of materials; Rutting; Strength of materials; Superpave; Tensile strength

Aggregate sources; Moisture sensitivity

Highways; Materials; I31: Bituminous Binders and Materials

TRIS, TRB, ATRI

Nov 24 1997 12:00AM

• ANALYSIS OF PAVEMENT RUTTING DATA FROM FHWA PAVEMENT TESTING FACILITY SUPERPAVE VALIDATION STUDY
• COMPARISON OF COARSE MATRIX HIGH BINDER AND DENSE-GRADED HOT-MIX ASPHALT
• DESIGN, CONSTRUCTION, AND ANALYSIS OF PAVEMENTS USING ACCELERATED LOADING FACILITY
• DEVELOPMENT OF TEMPERATURE-EFFECT MODEL FOR PREDICTING RUTTING OF ASPHALT MIXTURES USING GEORGIA LOADED WHEEL TESTER
• EFFECT OF AGGREGATE DEGRADATION ON SPECIMENS COMPACTED BY SUPERPAVE GYRATORY COMPACTOR
• EVALUATION OF RUT-RESISTANT PROPERTIES OF ASPHALT MIXES UNDER FIELD AND LABORATORY CONDITIONS
• FRACTURE MORPHOLOGY AND FRACTURE TOUGHNESS MEASUREMENT OF POLYMER-MODIFIED ASPHALT CONCRETE
• FULL-SCALE RUTTING TESTS OF LARGE-STONE ASPHALT MIXTURES
• INTERPRETATION OF INDIRECT TENSION TEST BASED ON VISCOELASTICITY
• LONG-TERM OVEN-AGING EFFECTS ON FATIGUE AND INITIAL STIFFNESS OF ASPHALT CONCRETE
• TEST METHODS FOR EVALUATION OF COLD-APPLIED BITUMINOUS PATCHING MIXTURES
• THEORETICAL EVALUATION OF POISSON'S RATIO AND ELASTIC MODULUS USING INDIRECT TENSILE TEST WITH EMPHASIS ON BITUMINOUS MIXTURES