A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low-Temperature Cracking: Binder Validation
The thermal stress restrained specimen test (TSRST) was developed at Oregon State University under the Strategic Highway Research Program (SHRP) A-003A contract as an accelerated laboratory test to evaluate the thermal, or the low-temperature cracking resistance of asphalt concrete mixes. The test system is capable of cooling an asphalt concrete specimen (rectangular or cylinder) at a constant rate, while restraining the specimen from contraction and periodically measuring elapsed time, specimen surface temperature, and tensile load. TSRSTs were performed on both short-term and long-term aged specimens to (1) relate fundamental properties of asphalt cement and aggregate to the thermal cracking resistance of asphalt concrete mixtures, and (2) validate the A-002A contractor's hypothesis for low-temperature cracking. Statistical analyses were performed on the test results. A ranking of asphalt concrete mixtures based on fracture temperature compared favorably with a ranking given by the A-002A contractor based on fundamental properties of the asphalt cement. Fracture temperature was highly correlated to the A-002A low-temperature index test results. (Copyright (c) 1994 National Academy of Sciences.)
Low-Temperature Cracking: Binder Validation
The thermal stress restrained specimen test (TSRST) was developed at Oregon State University under the Strategic Highway Research Program (SHRP) A-003A contract as an accelerated laboratory test to evaluate the thermal, or the low-temperature cracking resistance of asphalt concrete mixes. The test system is capable of cooling an asphalt concrete specimen (rectangular or cylinder) at a constant rate, while restraining the specimen from contraction and periodically measuring elapsed time, specimen surface temperature, and tensile load. TSRSTs were performed on both short-term and long-term aged specimens to (1) relate fundamental properties of asphalt cement and aggregate to the thermal cracking resistance of asphalt concrete mixtures, and (2) validate the A-002A contractor's hypothesis for low-temperature cracking. Statistical analyses were performed on the test results. A ranking of asphalt concrete mixtures based on fracture temperature compared favorably with a ranking given by the A-002A contractor based on fundamental properties of the asphalt cement. Fracture temperature was highly correlated to the A-002A low-temperature index test results. (Copyright (c) 1994 National Academy of Sciences.)
Low-Temperature Cracking: Binder Validation
D. H. Jung (author) / T. S. Vinson (author)
1994
118 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Highway Engineering , Materials Degradation & Fouling , Transportation & Traffic Planning , Transportation , Low temperature tests , Thermal stresses , Pavement damage , Hot mix paving mixtures , Asphalt pavements , Accelerated life tests , Test methods , Aggregates , Bituminous concretes , Mechanical properties , Statistical analysis , Regression analysis , Highway maintenance , Binders , Fracture(Mechanics) , Cracking(Fracturing) , Road materials , Thermal cracking
Low temperature cracking : binder validation
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