抗剥落剂对沥青及沥青混合料耐久性影响

发布时间：2018-05-26 18:44

本文选题：道路工程 + 抗剥落剂　；参考：《科学技术与工程》2017年33期

【摘要】：为了研究添加抗剥落剂对沥青混合料的耐久性影响,对添加抗剥落剂的沥青测试其老化后三大指标,并测试添加抗剥落剂沥青混合料的老化后的水稳定性、高低温稳定性,分析抗剥落剂对沥青及沥青混合料的性能影响。结果表明:随着长期老化时间增加,掺加抗剥落剂的沥青性能衰减较未掺加抗剥落剂的明显;而且抗剥落剂掺量越大,这种衰减越明显;不同抗剥落剂掺量下沥青老化属于一级反应,随着抗剥落剂掺量的增加,沥青老化反应速率常数呈现增大趋势;沥青混合料未老化时,随着抗剥落剂掺量增加,其水稳定性和低温性能呈现出先增加后降低的趋势,高温稳定性呈现降低趋势;经过短期老化和长期老化后,混合料的水稳定性和低温性能均呈现下降趋势、高温稳定性呈现增大趋势;且长期老化后掺加抗剥落剂的沥青混合料性能影响尤为明显。
[Abstract]:In order to study the effect of adding anti stripping agent on the durability of asphalt mixture, the three major indexes after aging are tested on the asphalt adding anti stripping agent, and the stability of water after aging, high and low temperature after adding anti peeling agent asphalt mixture is tested. The effect of anti peeling agent on the performance of asphalt and asphalt mixture is analyzed. With the increase of long term aging time, the performance of asphalt with anti peeling agent attenuates more obviously than that of anti peeling agent, and the greater the amount of anti peeling agent, the more obvious the attenuation is; the asphalt aging is one grade reaction with the addition of different anti exfoliating agents. With the increase of the amount of anti stripping agent, the rate constant of the asphalt aging reaction shows an increasing trend; When the mixture is not aging, the water stability and low temperature performance of the mixture increase first and then decrease with the increase of the dosage of the anti stripping agent, and the stability of the high temperature shows a decreasing trend. After the short-term aging and the long-term aging, the water stability and low temperature performance of the mixture show a downward trend, and the high temperature stability presents a trend of increasing; and the long time is old. The performance of asphalt mixture mixed with anti stripping agent is especially obvious.
【作者单位】：河南城建学院土木与交通工程学院;
【基金】：河南省科技攻关计划(162102310387)资助
【分类号】：U414

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