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生物结合料不仅在经济上具有巨大前景,而且其可再生性得到了道路材料研究人员的广泛关注。当前将生物结合料代替石油沥青主要有3种理念,即:直接替代(100%)、石油沥青稀释液(25%～75%)、石油沥青改性剂(<10%)。笔者采用橡木生物结合料对石油沥青进行直接替代,探讨了其温感性和剪切敏感性与石油沥青结合料的对比关系。同时,利用化学方法分析了动物废物生物结合料与石油沥青化学组分的差异,并研究了生物结合料改性材料的流变学特性。由试验数据结果可见:生物结合料虽然在化学组分上与石油沥青存在差异,但其物理特性表明生物结合料可作为未来石油沥青的替代产品或改性剂。
Biocompound materials not only have great economic prospects, but also their regenerative properties have attracted the attention of road material researchers. Currently there are three main concepts of bio-binder instead of petroleum asphalt: direct replacement (100%), petroleum asphalt diluent (25% -75%) and petroleum asphalt modifier (<10%). The author uses oak bio-binder to directly replace petroleum bitumen, and discusses the relationship between temperature sensitivity and shearing sensitivity and petroleum bitumen binder. At the same time, the chemical methods were used to analyze the differences between chemical composition of animal waste bio-binder and petroleum asphalt, and the rheological properties of bio-binder modified materials were studied. From the experimental data, it can be seen that although the bioconjugate is different in chemical composition from petroleum pitch, its physical properties indicate that the bioconjugate can be used as a substitute or modifier for future petroleum pitch.