00931977

Component

https://doi.org/10.3141/1789-19

https://rosap.ntl.bts.gov/view/dot/56335

http://scholar.google.com...mero&publication_year=2002

A standardized procedure is presented by which various asphalt concrete mixtures can be compared and their expected performance can be assessed in a uniform manner with the simple performance test suggested by National Cooperative Highway Research Program (NCHRP) project 9-19: "Superpave Support and Performance Models Management." The frequency sweep data generated from the test are available in terms of dynamic modulus \E*\ versus frequency at the measurement temperature under different levels of confining stress [0, 20, 30 psi (0, 0.14, 0.21 MPa)]. The moduli versus frequency data at different temperatures are unified to form a single curve for each mixture through a normalizing parameter. The temperature at which the normalizing parameter becomes equal to 1 is designated the specification parameter T sub S (deg C) for assessing mixture performance. Each unified curve is fitted with a constitutive equation from which model parameters are evaluated. Slope B sub 1 in the low-frequency region of the unified curve, when normalized with the term (T/T sub S), results in a parameter that is related to asphalt pavement distress at high temperature T. It is shown that B sub 1/T sub S is related to rut depths measured at different WesTrack (a full-scale test track) sections and the correlation improves with increasing confining stress. There is a good possibility that slope B sub 2 in the high-frequency region of the unified curve may relate to distresses in the intermediate temperature range, such as fatigue cracking. A preliminary check shows this may be true, but data are too limited to draw firm conclusions.

This paper appears in Transportation Research Record No. 1789, Bituminous Paving Mixtures 2002.

English

p. 173-182

2002

Transportation Research Record

0309077141

Figures (5) ; References (10) ; Tables (9)

Asphalt concrete; Correlation analysis; Depth; Dynamic modulus of elasticity; Frequency (Electromagnetism); Pavement distress; Performance tests; Rutting; Temperature

Confining stress

Data and Information Technology; Highways; Materials; I31: Bituminous Binders and Materials

NTL, TRIS, TRB, ATRI

Oct 4 2002 12:00AM

• AGGREGATE BLENDING FOR ASPHALT MIX DESIGN: BAILEY METHOD
• APPLICATION OF DIGITAL IMAGE CORRELATION METHOD TO MECHANICAL TESTING OF ASPHALT-AGGREGATE MIXTURES
• COARSE- VERSUS FINE-GRADED SUPERPAVE MIXTURES: COMPARATIVE EVALUATION OF RESISTANCE TO RUTTING
• COMPARISON OF FUNDAMENTAL AND SIMULATIVE TEST METHODS FOR EVALUATING PERMANENT DEFORMATION OF HOT-MIX ASPHALT
• DETERMINING THE LOW-TEMPERATURE FRACTURE TOUGHNESS OF ASPHALT MIXTURES
• DYNAMIC MODULUS OF ASPHALT CONCRETE WITH A HOLLOW CYLINDER TENSILE TESTER
• EFFECT OF AGGREGATE STRUCTURE ON RUTTING POTENTIAL OF DENSE-GRADED ASPHALT MIXTURES
• EFFECT OF FINE AGGREGATE ANGULARITY ON COMPACTION AND SHEARING RESISTANCE OF ASPHALT MIXTURES
• EVALUATION OF FATIGUE HEALING EFFECT OF ASPHALT CONCRETE BY PSEUDOSTIFFNESS
• EVALUATION OF MEASUREMENT TECHNIQUES FOR ASPHALT PAVEMENT DENSITY AND PERMEABILITY
• HISTORY AND FUTURE CHALLENGES OF GYRATORY COMPACTION: 1939 TO 2001
• INFLUENCE OF ASPHALT TACK COAT MATERIALS ON INTERFACE SHEAR STRENGTH
• LOUISIANA EXPERIENCE WITH CRUMB RUBBER-MODIFIED HOT-MIX ASPHALT PAVEMENT
• MICROMECHANICAL ANALYSIS OF VISCOELASTIC PROPERTIES OF ASPHALT CONCRETES
• PREDICTING VISCOELASTIC RESPONSE AND CRACK GROWTH IN ASPHALT MIXTURES WITH THE BOUNDARY ELEMENT METHOD
• ROUND-ROBIN STUDY FOR FIELD PERMEABILITY TEST
• RUNOFF CONTROL IN POROUS PAVEMENTS
• SHEAR PROPERTIES AS VIABLE MEASURES FOR CHARACTERIZATION OF PERMANENT DEFORMATION OF ASPHALT CONCRETE MIXTURES
• SIMPLE PERFORMANCE TEST FOR FATIGUE CRACKING AND VALIDATION WITH WESTRACK MIXTURES
• TARGET AND TOLERANCE STUDY FOR ANGLE OF GYRATION USED IN SUPERPAVE GYRATORY COMPACTOR
• TIME-TEMPERATURE SUPERPOSITION FOR ASPHALT CONCRETE AT LARGE COMPRESSIVE STRAINS
• TOWARD A MICROMECHANICS-BASED PROCEDURE TO CHARACTERIZE FATIGUE PERFORMANCE OF ASPHALT CONCRETE
• USE OF STIFFNESS OF HOT-MIX ASPHALT AS A SIMPLE PERFORMANCE TEST