热拌环氧沥青钢桥面铺装材料评价与应用研究
发布时间:2018-12-14 04:09
【摘要】:随着我国经济持续快速的发展,带动了我国的桥梁建设,特别是钢箱梁桥,新材料新结构的广泛应用使得斜拉桥、悬索桥等大跨径钢箱梁桥的建设技术得到了很大的进步。目前我国钢桥面铺装材料种类较多,其中环氧沥青是一种性能优良的铺装材料,由于环氧沥青铺装的施工控制难度较大,而且其造价昂贵,一定程度上制约了环氧沥青的推广应用,为此有必要研发具有自主知识产权的环氧沥青材料,并研究环氧沥青铺装施工控制要求。 首先,本文研究了环氧沥青的微观结构,从微观上分析了环氧沥青的固化机理及空间结构形式。 第二,本文对新型研发的热拌N-EA环氧沥青混合料进行性能试验评价研究,并与目前国内应用较多的美国ChemCo环氧沥青混合料和日本TAF环氧沥青混合料进行基本性能和特点比对试验评价,评价了N-EA环氧沥青混合料的强度、抗水损害性能、高温稳定性、低温抗裂性和疲劳性能等。 第三,本文对钢桥面铺装防水粘结层弯曲变形性能、耐高温性能、拉拔强度等方面的性能进行了环氧粘结剂的性能试验评价研究。 第四,本文对一种新型研发的温拌N-DB环氧沥青混合料进行性能试验研究,采用EA-10级配研究其钢桥面铺装的相关技术性能,采用AC-13C级配研究其在路面应用的最佳N-DB环氧沥青配方。 最后,结合大榭第二大桥钢桥面铺装实体工程,研究评价了热拌环氧沥青混合料的施工工艺及质量控制措施。
[Abstract]:With the sustained and rapid development of economy in China, the construction of bridges in China, especially steel box girder bridges, has been promoted. With the wide application of new materials and new structures, the construction technology of long-span steel box girder bridges, such as cable-stayed bridges and suspension bridges, has been greatly improved. At present, there are many kinds of steel bridge deck paving materials in China, among which epoxy asphalt is a kind of pavement material with excellent performance. Because of the difficulty of construction control and the high cost of epoxy asphalt pavement, To some extent, the popularization and application of epoxy asphalt is restricted. Therefore, it is necessary to develop epoxy asphalt materials with independent intellectual property rights and to study the construction control requirements of epoxy asphalt pavement. Firstly, the microstructure of epoxy asphalt was studied, and the curing mechanism and space structure of epoxy asphalt were analyzed. Secondly, this paper studies the performance evaluation of a new type of hot-mixed N-EA epoxy asphalt mixture. Compared with American ChemCo epoxy asphalt mixture and Japanese TAF epoxy asphalt mixture, the strength and water damage resistance of N-EA epoxy asphalt mixture were evaluated. High temperature stability, low temperature crack resistance and fatigue performance. Thirdly, this paper studies the properties of epoxy binder in bending deformation, high temperature resistance and drawing strength of waterproof adhesive layer of steel bridge deck pavement. Fourth, this paper studies the performance of a new kind of warm mixed N-DB epoxy asphalt mixture, and uses EA-10 gradation to study the related technical performance of steel bridge deck pavement. The optimum N-DB epoxy asphalt formula for pavement application was studied by AC-13C gradation. Finally, the construction technology and quality control measures of hot-mixed epoxy asphalt mixture are studied and evaluated in combination with the steel deck pavement engineering of Daxie No. 2 Bridge.
【学位授予单位】:华南理工大学
【学位级别】:硕士
【学位授予年份】:2013
【分类号】:U443.33
本文编号:2377896
[Abstract]:With the sustained and rapid development of economy in China, the construction of bridges in China, especially steel box girder bridges, has been promoted. With the wide application of new materials and new structures, the construction technology of long-span steel box girder bridges, such as cable-stayed bridges and suspension bridges, has been greatly improved. At present, there are many kinds of steel bridge deck paving materials in China, among which epoxy asphalt is a kind of pavement material with excellent performance. Because of the difficulty of construction control and the high cost of epoxy asphalt pavement, To some extent, the popularization and application of epoxy asphalt is restricted. Therefore, it is necessary to develop epoxy asphalt materials with independent intellectual property rights and to study the construction control requirements of epoxy asphalt pavement. Firstly, the microstructure of epoxy asphalt was studied, and the curing mechanism and space structure of epoxy asphalt were analyzed. Secondly, this paper studies the performance evaluation of a new type of hot-mixed N-EA epoxy asphalt mixture. Compared with American ChemCo epoxy asphalt mixture and Japanese TAF epoxy asphalt mixture, the strength and water damage resistance of N-EA epoxy asphalt mixture were evaluated. High temperature stability, low temperature crack resistance and fatigue performance. Thirdly, this paper studies the properties of epoxy binder in bending deformation, high temperature resistance and drawing strength of waterproof adhesive layer of steel bridge deck pavement. Fourth, this paper studies the performance of a new kind of warm mixed N-DB epoxy asphalt mixture, and uses EA-10 gradation to study the related technical performance of steel bridge deck pavement. The optimum N-DB epoxy asphalt formula for pavement application was studied by AC-13C gradation. Finally, the construction technology and quality control measures of hot-mixed epoxy asphalt mixture are studied and evaluated in combination with the steel deck pavement engineering of Daxie No. 2 Bridge.
【学位授予单位】:华南理工大学
【学位级别】:硕士
【学位授予年份】:2013
【分类号】:U443.33
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