玄武岩纤维低噪声沥青混合料路用性能及其应用研究
发布时间：2018-07-15 13:52
【摘要】：由于我国道路交通量的急剧增长,以及车辆荷载轴重的不断增大,使得沥青混凝土路面的早期病害现象日益突出,其中沥青路面的车辙、裂缝病害尤为严重。鉴于此,道路工作者开展了针对此类问题的相关研究,着眼于提高沥青混凝土路面的路用性能、延长沥青路面的服役期限。而本文研究的玄武岩纤维作为一种新型材料有效提高了沥青混合料的路用性能,在道路工程中具有广阔的应用前景。虽然玄武岩纤维应用于沥青混合料具有其优越性,然而我国有关玄武岩纤维改性沥青混合料的研究起步较晚,将其应用于低噪声沥青路面的相关研究更是鲜有报道,其玄武岩纤维低噪声沥青路面的路用性能有待进一步的研究和验证。因此,本文通过正交试验及驻波管试验,对比分析了不同影响因素对开级配沥青混合料降噪性能的影响规律,并利用针入度试验、软化点试验、延度试验、弹性恢复试验以及表观粘度试验测定了玄武岩纤维沥青的相关指标,揭示了玄武岩纤维与沥青的作用机理。此外,通过室内试验测定了不同掺量玄武岩纤维开级配沥青混合料的水稳定性、高温稳定性、低温稳定性、渗水性能、抗滑性能指标,研究了玄武岩纤维掺量对开级配沥青混合料路用性能的影响规律,最后从试验路的角度提出了玄武岩纤维改性沥青混合料的配合比设计及施工工艺。
[Abstract]:Due to the rapid growth of road traffic volume and the increasing of vehicle load axle load, the early disease phenomenon of asphalt concrete pavement is increasingly prominent, especially the rutting and crack diseases of asphalt pavement. In view of this, the road workers have carried out the related research aimed at improving the pavement performance of asphalt concrete pavement and prolonging the service life of asphalt pavement. The basalt fiber studied in this paper, as a new material, can effectively improve the pavement performance of asphalt mixture, and has a broad application prospect in road engineering. Although the application of basalt fiber in asphalt mixture has its advantages, the research on basalt fiber modified asphalt mixture has started relatively late in our country, and it is rarely reported that the application of basalt fiber to asphalt pavement is low noise. The road performance of basalt fiber low noise asphalt pavement needs further research and verification. Therefore, through orthogonal test and standing wave tube test, this paper compares and analyzes the influence of different factors on the noise reduction performance of open graded asphalt mixture, and makes use of penetration test, softening point test, ductility test, etc. The relative indexes of basalt fiber asphalt were measured by elastic recovery test and apparent viscosity test, and the interaction mechanism between basalt fiber and asphalt was revealed. In addition, the water stability, high temperature stability, low temperature stability, water permeability and skid resistance of asphalt mixture with different content of basalt fiber are measured by laboratory tests. The influence of basalt fiber content on pavement performance of open graded asphalt mixture is studied. At last, the proportion design and construction technology of basalt fiber modified asphalt mixture are put forward from the point of view of test road.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U414
本文编号：2124288
[Abstract]:Due to the rapid growth of road traffic volume and the increasing of vehicle load axle load, the early disease phenomenon of asphalt concrete pavement is increasingly prominent, especially the rutting and crack diseases of asphalt pavement. In view of this, the road workers have carried out the related research aimed at improving the pavement performance of asphalt concrete pavement and prolonging the service life of asphalt pavement. The basalt fiber studied in this paper, as a new material, can effectively improve the pavement performance of asphalt mixture, and has a broad application prospect in road engineering. Although the application of basalt fiber in asphalt mixture has its advantages, the research on basalt fiber modified asphalt mixture has started relatively late in our country, and it is rarely reported that the application of basalt fiber to asphalt pavement is low noise. The road performance of basalt fiber low noise asphalt pavement needs further research and verification. Therefore, through orthogonal test and standing wave tube test, this paper compares and analyzes the influence of different factors on the noise reduction performance of open graded asphalt mixture, and makes use of penetration test, softening point test, ductility test, etc. The relative indexes of basalt fiber asphalt were measured by elastic recovery test and apparent viscosity test, and the interaction mechanism between basalt fiber and asphalt was revealed. In addition, the water stability, high temperature stability, low temperature stability, water permeability and skid resistance of asphalt mixture with different content of basalt fiber are measured by laboratory tests. The influence of basalt fiber content on pavement performance of open graded asphalt mixture is studied. At last, the proportion design and construction technology of basalt fiber modified asphalt mixture are put forward from the point of view of test road.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U414
【共引文献】
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