00646102

Component

http://onlinepubs.trb.org...trr/1993/1417/1417-002.pdf

https://scholar.google.co...nson&publication_year=1993

The thermal stress restrained specimen test (TSRST) has been developed as an accelerated laboratory test to evaluate the thermal cracking resistance of asphalt concrete mixtures. This work was conducted at Oregon State University under a Strategic Highway Research Program (SHRP) contract. A statistical analysis of TSRST results indicated that asphalt type and degree of aging have a significant effect on fracture temperature. Air voids content and aggregate type have a significant effect on fracture strength. The fracture temperature of relaxed specimens was colder than that of nonrelaxed specimens. The decrease in fracture temperature because of stress relaxation was significant for stiffer asphalts and not significant for softer asphalts. Fracture strength was lower for relaxed specimens. Fracture temperature was highly correlated with SHRP low-temperature asphalt cement index test results, namely, the limiting stiffness temperature and the ultimate strain at failure. A ranking of asphalt concrete mixtures based on fracture temperature from the TSRST compared favorably with a ranking based on fundamental properties of the asphalt cement.

This paper appears in Transportation Research Record No. 1417, Asphalt Concrete Mixtures. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01398728

English

p. 12-20

1993

Transportation Research Record

0309055652

Figures (11) ; References (9) ; Tables (3)

Aggregates; Air voids; Asphalt concrete; Fracture mechanics; Fracture properties; Laboratory tests; Low temperature; Mechanical relaxation; Statistical analysis; Thermal stresses

Strategic Highway Research Program

Thermal stress restrained specimen test

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

TRIS, TRB

Apr 18 1994 12:00AM

• ASPHALT MIXTURES CONTAINING CHEMICALLY MODIFIED BINDERS
• ASPHALT-RUBBER INTERACTIONS
• ASPHALT: MIXTURE DESIGN METHOD TO MINIMIZE RUTTING
• ASSESSING EFFECTS OF COMMERCIAL MODIFIERS ON MONTANA ASPHALTS BY CONVENTIONAL TESTING METHODS
• DEVELOPMENT OF CRITERIA TO EVALUATE UNIAXIAL CREEP DATA AND ASPHALT CONCRETE PERMANENT DEFORMATION POTENTIAL
• EFFECT OF AGGREGATE GRADATION ON MEASURED ASPHALT CONTENT
• EFFECT OF FLYASH ON ENGINEERING PROPERTIES OF SAND-ASPHALT-SULFUR PAVING MIXES
• EFFECT OF SEGREGATION ON PERFORMANCE OF HOT-MIX ASPHALT
• EFFECT OF STYRENE-BUTADIENE-STYRENE BLOCK COPOLYMER ON FATIGUE CRACK PROPAGATION BEHAVIOR OF ASPHALT CONCRETE MIXTURES
• EFFECTS OF LABORATORY ASPHALT CONCRETE SPECIMEN PREPARATION VARIABLES ON FATIGUE AND PERMANENT DEFORMATION TEST RESULTS USING STRATEGIC HIGHWAY RESEARCH PROGRAM A-003A PROPOSED TESTING EQUIPMENT
• EFFECTS OF MOISTURE ON PROPERTIES OF ASPHALT MIXES IN A WET TROPICAL CLIMATE: A LABORATORY STUDY
• EVALUATION OF INDIRECT TENSILE TEST FOR DETERMINING STRUCTURAL PROPERTIES OF ASPHALT MIX
• LABORATORY INVESTIGATION OF PROPERTIES OF ASPHALT-RUBBER CONCRETE MIXTURES
• PERFORMANCE OF BINDER-MODIFIERS IN RECYCLED ASPHALT PAVEMENT: FIELD TRIAL, 1987 TO 1992
• PERMANENT DEFORMATION: FIELD EVALUATION
• PREDICTING MAXIMUM PAVEMENT SURFACE TEMPERATURE USING MAXIMUM AIR TEMPERATURE AND HOURLY SOLAR RADIATION
• PREMATURE ASPHALT CONCRETE PAVEMENT DISTRESS CAUSED BY MOISTURE-INDUCED DAMAGE
• PREPARATION OF ASPHALT CONCRETE TEST SPECIMENS USING ROLLING WHEEL COMPACTION
• RESULTS OF ROUND-ROBIN TEST PROGRAM TO EVALUATE RUTTING OF ASPHALT MIXES USING LOADED WHEEL TESTER
• TEMPERATURE ESTIMATION FOR LOW-TEMPERATURE CRACKING OF ASPHALT CONCRETE