00769540

Component

https://doi.org/10.3141/1661-15

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

The nature of the interaction process between asphalt cement and crumb rubber modifier (CRM) has not been fully understood. Two main types of mechanisms that affect the produced binder properties are reported: particle swelling and degradation (devulcanization and depolymerization). These mechanisms occur as the binder is subjected to different combinations of interaction time and temperature. Insight into the mechanisms by which the interaction between the two materials takes place through monitoring the changes in the rheological parameters of the binder is provided. The effects of the interaction process variables, time and temperature, are explained. The effect of CRM properties, including particle size and material source, is also discussed.

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

English

p. 106-113

1999

Transportation Research Record

0309070589

Figures (8) ; References (10)

Asphalt rubber; Crumb rubber; Rheological properties; Swelling; Temperature; Time

Degradation (Materials); Interaction (Materials); Material sources; Particle size (Materials)

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 EVALUATION OF KENTUCKY PERFORMANCE-GRADED 70-22 ASPHALT BINDERS
• LOW-TEMPERATURE PHYSICAL HARDENING OF HOT-MIX ASPHALT
• 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