00769527

Component

https://doi.org/10.3141/1661-02

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

Blending charts are used to predict properties of blended asphalt binders (mixture of an asphalt binder with other asphalt binders or modifiers) on the basis of properties of its components. These charts can be used to produce specific grading asphalt binder with blending available materials. In addition, they are used to select proper type and amount of asphalt binder or recycling agent in the design of recycled asphalt mixtures. Current blending charts are based on traditional asphalt grading parameters, such as viscosity and penetration. With the expansion of use of the SUPERPAVE system for design of asphalt mixtures, it is necessary to develop new blending charts based on performance-graded (PG) asphalt binder parameters. The main objective of this research was to characterize blended binders with the PG testing parameters, such as complex shear modulus, phase angle, stiffness, and creep rate. Ten different blended asphalt binders were characterized with the PG grading system. A linear relationship was found accurate enough for prediction of PG parameters of blended binders with proportion of new asphalt binder or recycling agent in blends. Two types of blending charts can be used on the basis of PG performance criteria or temperatures at which PG criteria were satisfied. The findings can be used for selection of recycling agents for asphalt recycling projects and for producing specific PG binders by blending available asphalt binders.

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

English

p. 7-14

1999

Transportation Research Record

0309070589

Figures (8) ; References (16) ; Tables (4)

Asphalt; Bituminous binders; Blending; Charts; Creep; Performance based specifications; Recycled materials; Stiffness; Superpave

Complex shear modulus; Phase angle

Highways; Materials; I31: Bituminous Binders and Materials

TRIS, TRB, ATRI

Sep 28 1999 12:00AM

• 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
• 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