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ENGINEERING PROPERTIES OF POLYMER-MODIFIED ASPHALT MIXTURES.
| 题名： | ENGINEERING PROPERTIES OF POLYMER-MODIFIED ASPHALT MIXTURES. |
| 作者： | Khattak-MJ; Baladi-GY |
| 关键词： | POLYMER-ASPHALT; ENGINEERING-PROPERTIES; ELASTIC-PROPERTIES; FATIGUE-LIFE; TENSILE-STRENGTH; DEFORMATION-; TEMPERATURE-; RUTTING-; LOW-TEMPERATURES; CRACKING-FRACTURING |
| 摘要： | A large research program sponsored by the Michigan Department of Transportation was designed and completed to evaluate the effect of polymer modification on the various properties of asphalt mixtures. These include the micro- and macrostructural, morphological, chemical, and engineering properties. Some of the engineering properties of the styrene-butadiene-styrene and styrene-ethylene-butylene-styrene polymer-modified asphalt mixtures are presented and discussed. The elastic, fatigue, tensile and permanent deformation properties were investigated at 60, 25, and -5 deg C. It was found that, for some polymer systems, the fatigue life and the indirect tensile strength increased considerably at 25 deg C while the elastic properties at -5 deg C were not affected by the addition of polymer. The implication of this is that the use of some polymer systems in asphalt mixtures enhances their fatigue cracking and rutting resistance without affecting the low temperature cracking potential. |
| 总页数： | Transportation Research Record. 1998. (1638) pp12-22 (8 Fig., 14 Ref.) |
| 报告类型： | 科技报告 |
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