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以某品牌70#基质沥青为基础沥青,以布敦岩沥青作为改性剂,在试验室制备布敦岩沥青改性沥青并且按照JTG E20-2011《公路工程沥青及沥青混合料试验规程》进行了一系列试验。试验结果表明:布敦岩沥青改性沥青与集料的粘附性等级与70#基质沥青基本相同,在以布敦岩沥青改性沥青作为胶结料进行沥青混合料设计时要注意其改性沥青的离析问题及其所用路面层位的选择。
With a brand 70 # asphalt as base asphalt, bourdon rock asphalt as modifier, prepare Budun rock asphalt modified asphalt in the laboratory and follow the JTG E20-2011 “Road engineering asphalt and asphalt mixture test procedures” A series of experiments. The test results show that: the Boudou rock asphalt modified asphalt and aggregate adhesion rankings are basically the same as those of 70 # asphalt. When the bourdon asphalt modified asphalt is used as the cementitious material for asphalt mixture design, attention should be paid to its modification Asphalt segregation problem and choice of pavement layer used.