A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Evaluation of Stone Matrix Asphalt Utilizing the Georgia Loaded Wheel Tester
The Georgia Loaded Wheel Tester (GaLWT) has been used to evaluate the rutting potential of two hot mix asphalts, stone matrix asphalt (SMA) and a WisDOT high volume mix (HV3). The additives used in the SMA mixes were: organic fiber, inorganic fiber, elastomeric polymer; and thermoplastic polymers. Field specimens were taken from I43 in Walworth County, and USH 151 in Grant and Lafayette Counties. These specimens were obtained within a few days of the placement of the hot mix asphalt. Laboratory prepared using aggregate and asphalt cement obtained from the field sites. SMA specimens tested using the GaLWT demonstrated little potential for rutting for both the field obtained and laboratory prepared specimens. The HV3 specimens, both the laboratory prepared and the field obtained specimens demonstrated a high potential for rutting. The mean unit weights of the field obtained and the laboratory prepared specimens for SMA mixes varied by less than + or - 0.75%. The field obtained HV3 specimens had a mean unit weight of 2.22% and 3.55% more than the laboratory prepared specimens.
Evaluation of Stone Matrix Asphalt Utilizing the Georgia Loaded Wheel Tester
The Georgia Loaded Wheel Tester (GaLWT) has been used to evaluate the rutting potential of two hot mix asphalts, stone matrix asphalt (SMA) and a WisDOT high volume mix (HV3). The additives used in the SMA mixes were: organic fiber, inorganic fiber, elastomeric polymer; and thermoplastic polymers. Field specimens were taken from I43 in Walworth County, and USH 151 in Grant and Lafayette Counties. These specimens were obtained within a few days of the placement of the hot mix asphalt. Laboratory prepared using aggregate and asphalt cement obtained from the field sites. SMA specimens tested using the GaLWT demonstrated little potential for rutting for both the field obtained and laboratory prepared specimens. The HV3 specimens, both the laboratory prepared and the field obtained specimens demonstrated a high potential for rutting. The mean unit weights of the field obtained and the laboratory prepared specimens for SMA mixes varied by less than + or - 0.75%. The field obtained HV3 specimens had a mean unit weight of 2.22% and 3.55% more than the laboratory prepared specimens.
Evaluation of Stone Matrix Asphalt Utilizing the Georgia Loaded Wheel Tester
K. F. Faherty (author)
1994
25 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Highway Engineering , Materials Degradation & Fouling , Hot mix paving mixtures , Pavement wear , Test methods , Aggregates , Cyclic loads , Admixtures , Polymers , Road materials , Design analysis , Thickness , Pavement condition , Stone matrix asphalt , Georgia loaded wheel testers
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