00769536

Component

https://doi.org/10.3141/1661-11

http://scholar.google.com...rner&publication_year=1999

A study was initiated to ascertain whether all performance-graded (PG) 70-22 binders would perform the same in an asphalt mixture in Kentucky, regardless of method of manufacture of the binder. Five PG 70-22 binders and one PG 64-22 binder (control) were incorporated into an asphalt mixture through a hot-mix asphalt plant. Test sections were placed for each binder. The mixture was sampled at the plant and returned to the laboratory for mechanical property testing. The mechanical property tests included repeated shear test at constant height, frequency sweep test at constant height, and indirect tensile creep (ITC) test. These tests were chosen to evaluate the high-, intermediate-, and low-temperature properties of the asphalt mixtures. Only low-temperature properties are discussed. Thermal stress analysis techniques permitted the critical mixture temperature for single-event thermal cracking to be compared with critical binder temperatures. Although the critical binder temperature [calculated from bending beam rheometer (BBR) stiffness] matched the critical mixture temperature reasonably well, the critical binder temperature calculated from the BBR m-value did not match as well. The m-value critical temperature is generally higher than indicated by the low-temperature ITC testing. Although not all PG 70-22 binders performed the same in mixture testing, the research did not clarify whether differences in mixture properties for the PG 70-22 binders are related to differences in binder stiffness, differences in method of manufacture, or both.

This paper appears in Transportation Research Record No. 1661, Hot-Mix Asphalt Binders.

English

p. 69-74

1999

Transportation Research Record

0309070589

Figures (8) ; References (8) ; Tables (6)

Asphalt mixtures; Bituminous binders; Creep tests; Hot mix asphalt; Laboratory tests; Low temperature tests; Manufacturing; Mechanical properties; Pavement cracking; Performance based specifications; Shear tests; Stiffness; Temperature; Test sections; Thermal stresses

Kentucky

Highways; Materials; I31: Bituminous Binders and Materials

TRIS, TRB, ATRI

Sep 29 1999 12:00AM

• BLENDING CHARTS BASED ON PERFORMANCE-GRADED ASPHALT BINDER SPECIFICATION
• CHEMICAL AND RHEOLOGICAL CHARACTERISTICS OF STYRENE-BUTADIENE-STYRENE POLYMER-MODIFIED BITUMENS
• COLLABORATIVE EVALUATIONS OF LOW-TEMPERATURE SUPERPAVE PERFORMANCE-GRADED ASPHALT BINDERS
• COMPARISON OF ASPHALT EXTRACTION PROCEDURES: IMPLICATIONS OF HIDDEN ENVIRONMENTAL AND LIABILITY COSTS
• COMPARISON OF FIELD- AND LABORATORY-GENERATED ASPHALT FUMES
• DETECTION OF COAL TAR MATERIALS IN ASPHALT PAVEMENTS BY USING CHEMICAL AND BIOLOGICAL METHODS
• EFFECT OF HYDRATED LIME ON RHEOLOGY, FRACTURE, AND AGING OF BITUMEN (WITH DISCUSSION AND CLOSURE)
• EFFECT OF OXIDATION PRESSURE ON ASPHALT HARDENING SUSCEPTIBILITY
• FIELD PERFORMANCE OF MODIFIED ASPHALT BINDERS EVALUATED WITH SUPERPAVE TEST METHODS: I-80 TEST PROJECT
• LABORATORY GENERATION AND EVALUATION OF PAVING ASPHALT FUMES
• LOW-TEMPERATURE PHYSICAL HARDENING OF HOT-MIX ASPHALT
• MECHANISM OF INTERACTION OF ASPHALT CEMENT WITH CRUMB RUBBER MODIFIER
• PERFORMANCE-GRADED HIGH-TEMPERATURE SELECTION CRITERION: CAN WE DO IT BETTER?
• PHYSICAL HARDENING OF ASPHALT BINDERS RELATIVE TO THEIR GLASS TRANSITION TEMPERATURES
• RHEOLOGICAL CHARACTERISTICS OF SELECTED POLYMER-MODIFIED ASPHALTS THROUGH THEIR DYNAMIC COMPLIANCES
• STUDY OF STERIC HARDENING EFFECT OF THIN ASPHALT FILMS IN PRESENCE OF AGGREGATE SURFACE