岩沥青在重载交通国省道中的应用
发布时间：2018-10-10 18:02
【摘要】：布敦岩沥青是石油经过长达亿万年的沉积、变化,在热压力、氧化、细菌等综合作用下生成的沥青类物质,通过物理和化学反应对沥青进行改性的新型环保铺路材料。国内外的研究和应用均表明布敦岩沥青性质稳定,改性工艺简单易操作,而且通常具有非常优良的路用性能。本文对AC-16C和AC-25C两种混合料类型下的基质沥青混合料、布敦岩改性沥青混合料、SBS改性沥青混合料进行了配合比设计,并对三种沥青混合料的路用性能、力学性能、社会经济效益等方面进行了对比分析。通过试验研究结果表明:在路用性能方面,布敦岩沥青混合料的高温稳定性和水稳定性均符合规范技术要求并相对于基质沥青混合料和SBS改性沥青混合料均得到一定程度的改善,尤其是抗车辙能力的提高更加显著,其低温抗裂性也能满足技术要求;在力学性能方面,布敦岩沥青混合料的抗压强度与抗压回弹模量最高,表明其承受荷载作用的能力最好,而且通过疲劳试验结果分析可知布敦岩沥青混合料疲劳耐久性能最好。通过对比,布敦岩沥青可以显著改善基质沥青混合料的使用性能,其改性效果优于SBS改性沥青。通过技术经济对比分析,布敦岩沥青在降低路面建设成本的同时有效提高路面使用寿命,并且相对于同类改性剂来说,其操作性强、施工过程简单、无需特殊设备及节省能耗的优势更为突出。国内许多成功案例也证明了采用布敦岩沥青的路面工程路用性能相对于普通沥青路面有大幅度的提高,布敦岩沥青拥有良好的推广应用前景。
[Abstract]:Budun bitumen is a new environmental protection paving material which is formed by the comprehensive action of thermal pressure oxidation bacteria and so on. It is a new environmental protection paving material which is modified by physical and chemical reaction. The research and application at home and abroad show that the properties of Budun rock asphalt are stable, the modification process is simple and easy to operate, and it usually has excellent road performance. In this paper, the mixture ratio of matrix asphalt mixture, Budun rock modified asphalt mixture and SBS modified asphalt mixture under two kinds of mixture types of AC-16C and AC-25C are designed, and the road performance and mechanical properties of the three kinds of asphalt mixture are also studied. Social and economic benefits and other aspects were compared and analyzed. The experimental results show that: in terms of road performance, The high temperature stability and water stability of Budun rock asphalt mixture meet the technical requirements of the specification and are improved to some extent compared with the base asphalt mixture and SBS modified asphalt mixture, especially the increase of rutting resistance. In terms of mechanical properties, the compressive strength and compressive resilience modulus of Budun rock asphalt mixture are the highest, which indicates that it has the best ability to withstand load. The fatigue test results show that Budun rock asphalt mixture has the best fatigue durability. By contrast, Budun rock asphalt can significantly improve the performance of matrix asphalt mixture, and its modified effect is better than that of SBS modified asphalt. Through the comparative analysis of technology and economy, Budun Rock Asphalt can effectively improve the pavement service life while reducing the cost of pavement construction, and compared with the similar modifier, its operation is strong, and the construction process is simple. The advantages of no special equipment and energy saving are more prominent. Many successful cases in China have also proved that the pavement performance of using Budun Rock Asphalt is greatly improved compared with that of ordinary asphalt pavement, and Budun Rock Asphalt has a good prospect of popularization and application.
【学位授予单位】：长沙理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U414
[Abstract]:Budun bitumen is a new environmental protection paving material which is formed by the comprehensive action of thermal pressure oxidation bacteria and so on. It is a new environmental protection paving material which is modified by physical and chemical reaction. The research and application at home and abroad show that the properties of Budun rock asphalt are stable, the modification process is simple and easy to operate, and it usually has excellent road performance. In this paper, the mixture ratio of matrix asphalt mixture, Budun rock modified asphalt mixture and SBS modified asphalt mixture under two kinds of mixture types of AC-16C and AC-25C are designed, and the road performance and mechanical properties of the three kinds of asphalt mixture are also studied. Social and economic benefits and other aspects were compared and analyzed. The experimental results show that: in terms of road performance, The high temperature stability and water stability of Budun rock asphalt mixture meet the technical requirements of the specification and are improved to some extent compared with the base asphalt mixture and SBS modified asphalt mixture, especially the increase of rutting resistance. In terms of mechanical properties, the compressive strength and compressive resilience modulus of Budun rock asphalt mixture are the highest, which indicates that it has the best ability to withstand load. The fatigue test results show that Budun rock asphalt mixture has the best fatigue durability. By contrast, Budun rock asphalt can significantly improve the performance of matrix asphalt mixture, and its modified effect is better than that of SBS modified asphalt. Through the comparative analysis of technology and economy, Budun Rock Asphalt can effectively improve the pavement service life while reducing the cost of pavement construction, and compared with the similar modifier, its operation is strong, and the construction process is simple. The advantages of no special equipment and energy saving are more prominent. Many successful cases in China have also proved that the pavement performance of using Budun Rock Asphalt is greatly improved compared with that of ordinary asphalt pavement, and Budun Rock Asphalt has a good prospect of popularization and application.
【学位授予单位】：长沙理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U414
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