Laboratory Evaluation of Pre-Devulcanized Crumb Rubber–Modified Asphalt as a Binder in Hot-Mix Asphalt
作者： Ruikun Dong , Jinliang Li , Shifeng Wang
DOI: 10.1061/(ASCE)MT.1943-5533.0000277
关键词: Composite material 、 Crumb rubber 、 Flexural fatigue 、 Natural rubber 、 Materials science 、 Material properties 、 Asphalt 、 Dynamic modulus 、 Asphalt pavement 、 Lower temperature
摘要: The purpose of this study was to investigate the properties hot-mix asphalt (HMA) prepared with devulcanized crumb rubber–modified (DCRMA), which processed by using pre-devulcanized rubber at a lower temperature (165°C). HMA different DCRMA content in weight were investigated, and it found that optimal binder 6.1% weight. packing grading mixture design method applied HMA. A series laboratory tests including submerged Marshall Stability, wheel tracking test, dynamic modulus small beam bending four-point flexural fatigue carried out characterize From experimental results, could be concluded can used as one kind good modifier for improve hot storage stability. also act cost-effective, modified dense-graded mixture, benefit low property pr...
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