基于抗裂层材料的马歇尔试验评价方法研究

发布时间：2018-06-19 17:02

本文选题：道路工程 + 抗裂层材料　；参考：《材料导报》2014年24期

【摘要】：针对现有马歇尔试验方法在抗裂层材料应用中研究的不足,根据旋转压实试验结果进行不同次数的马歇尔击实试验,以孔隙率作为评价指标,确定了抗裂层材料马歇尔试验最佳击实次数为双面击实75次。通过将旋转压实和马歇尔试验结果进行回归,并结合抗裂层材料特点和相关技术规范,确定了适用于抗裂层材料马歇尔试验的技术要求,得到了最佳油石比为7.5%,与旋转压实试验结果7.6%接近。试验结果表明:研究的抗裂层材料马歇尔试验方法具有一定的准确性和可靠性。研究结果可为科学合理地确定抗裂层材料最佳油石比和抗裂层材料在我国道路提质改造中的推广应用提供重要参考。
[Abstract]:In view of the deficiency of the existing Marshall test method in the application of anti-crack layer material, according to the results of rotary compaction test, the Marshall compaction test was carried out for different times, and the porosity was taken as the evaluation index. The optimum compaction times of Marshall test was determined to be 75 times of double-sided compaction. By regressing the results of rotational compaction and Marshall test, combining with the characteristics of anti-crack layer material and relevant technical specifications, the technical requirements for Marshall test of anti-crack layer material are determined. The results show that the optimum ratio of oil to stone is 7.5%, which is close to the result of rotating compaction test (7.6%). The experimental results show that the Marshall test method is accurate and reliable. The results can provide an important reference for the scientific and reasonable determination of the best oil-stone ratio of anti-crack layer material and the popularization and application of anti-crack layer material in the improvement of road quality in China.
【作者单位】：长沙理工大学交通运输工程学院;
【基金】：国家自然科学基金(51178062;51038002) 国家高技术研究发展计划(863计划)(2012AA112504) 教育部博士点基金(20114316110001) 湖南省自然科学基金(14JJ7041)
【分类号】：U414

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