生物炭改性沥青及其混合料性能综述

发布时间：2018-03-06 21:25

本文选题：道路工程　切入点：生物炭　出处：《公路》2015年12期 　论文类型：期刊论文

【摘要】：为减少矿物燃料的使用,充分利用可再生资源,改善普通沥青的性能缺陷,介绍了一种由生物炭改性的新型路面材料——生物炭改性沥青。介绍了生物炭的特点及来源,阐述了生物炭改性沥青及其混合料的制备过程和性能分析,指出进一步的研究建议。研究表明,生物炭具有碳性质和形态,其加入普通沥青中可以改善其抗老化性能,且温度敏感性有所降低。此外,生物炭改性沥青混合料的水稳定性、抗裂性和抗车辙性能均优于普通沥青混合料。生物炭改性沥青提高了沥青混凝土路面的使用性能,同时具备可再生性和环境友好性,为道路材料提供了发展新途径,可为我国道路工程中的研究应用提供参考。
[Abstract]:In order to reduce the use of fossil fuels, make full use of renewable resources and improve the performance defects of common asphalt, a new type of pavement material modified by biological carbon, Biochar modified asphalt, is introduced. The characteristics and sources of biochar are introduced. The preparation process and performance analysis of biochar modified asphalt and its mixture are described, and further research suggestions are pointed out. The results show that biochar has carbon property and morphology, and its addition into common asphalt can improve its aging resistance. In addition, the water stability, crack resistance and rutting resistance of biochar modified asphalt mixture are better than those of common asphalt mixture. At the same time, it provides a new way for the development of road materials and provides a reference for the research and application of road engineering in China because of its reproducibility and environmental friendliness.
【作者单位】：长安大学材料学院;长安大学公路学院;
【基金】：国家自然科学基金项目,项目编号51108038,51108039 陕西省科技厅项目,项目编号2013KW24,2013kjxx-94
【分类号】：U414

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