00743185

Component

https://doi.org/10.3141/1590-02

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

A Texas Department of Transportation study performed by the Texas Transportation Institute was undertaken with a goal of providing methods to assure the quality of cold-applied, asphalt-stabilized maintenance mixtures. Test procedures and acceptance criteria were developed for hot-mix, cold-laid asphalt concrete patching mixtures. Two specific objectives were to develop a test procedure to simulate approximately six months of stockpile-aging and a test procedure to quantify workability of maintenance mixtures. The protocol developed is designed to estimate the relative ability of a maintenance mixture to retain adequate workability after outdoor stockpile storage. This protocol could be useful as part of a specification to promote quality. Two test procedures were evaluated regarding their potential to quantify the workability of maintenance mixtures: a triaxial test and an unconfined compression test. Test results indicated that both procedures provide a relatively good measure of workability before and after aging. Two laboratory aging procedures were evaluated for their ability to predict workability of a stockpiled maintenance mixture after six months of field aging. Procedure A appeared to provide a reasonable approximation of six months of field aging.

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

English

p. 10-16

1997

Transportation Research Record

0309061636

Figures (13) ; References (12)

Aging (Materials); Hot mix asphalt; Materials; Patching; Quality assurance; Specifications; Stockpiling; Test procedures; Triaxial shear tests; Workability

Triaxial tests

Highways; Materials; I31: Bituminous Binders and Materials

TRIS, TRB, ATRI

Nov 21 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
• SELECTING MOST DESIRABLE HOT-MIX ASPHALT MIXTURES
• THEORETICAL EVALUATION OF POISSON'S RATIO AND ELASTIC MODULUS USING INDIRECT TENSILE TEST WITH EMPHASIS ON BITUMINOUS MIXTURES