Experimental and analytical methods for evaluating the high temperature viscoelastic properties of fine aggregate matrix
Experimental and analytical methods for evaluating the high temperature viscoelastic properties of fine aggregate matrix
复制标题
评价细集料基体高温粘弹性能的实验与分析方法
DOI：
10.1617/s11527-022-01900-4
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发表时间：
2022-08
影响因子：
3.8
通讯作者：
Jia Liang
中科院分区：
文献类型：
--
作者：
Qipeng Zhang;Xingyu Gu;Song Li;Jitong Ding;Jia Liang
细骨料基质（FAM）是沥青混合料的主要组成部分，其高温流变特性与沥青路面车辙势密切相关；因此，有必要对FAM的高温流变行为进行研究。为此，采用改进的多重应力蠕变恢复试验来评估FAM的流变特性。本文提出了一种新的蠕变恢复模型（CRM），可以更好地描述fam的蠕变恢复行为。使用CRM、Burgers和分数阶导数模型计算的值的比较表明，CRM表现最好。提出了两套评价FAM高温流变性能的指标。采用三种沥青粘结剂制作FAM样品，验证评价指标的适用性。实验和数据分析结果表明，两套评价指标在评价FAM的高温流变性能方面是一致的。分析了不同FAM在剪切损伤发展阶段的流变特性，结果表明，高温性能等级提高的沥青粘结剂制备的FAM粘弹性有显著波动。此外，FAM的高温稳定性随着载荷次数的增加而减弱，并且该过程造成的损伤对FAM高温稳定性的影响程度与蠕变和恢复过程相同。
A fine aggregate matrix (FAM) is the main component of an asphalt mixture, and its high temperature rheological property is well related to the rutting potential of asphalt pavements; therefore, it is necessary to investigate the high temperature rheological behavior of FAM. To this end, a modified multiple stress creep recovery test is utilized for assessing the rheological properties of FAM. A new creep-recovery model (CRM) that can better describe the creep recovery behavior of FAMs is proposed herein. A comparison of the values calculated using the CRM, Burgers, and fractional derivative models showed that the CRM performed the best. Two sets of indicators are proposed for evaluating the high-temperature rheological properties of the FAM. Three types of asphalt binders were used to fabricate the FAM samples to verify the applicability of these evaluation indicators. According to experiments and data analysis results, the two sets of evaluation indicators were consistent in evaluating the high-temperature rheological properties of FAM. The rheological properties of different FAMs were analyzed at the shear damage-development stage, and the results revealed significant fluctuations in the viscoelasticity of the FAM prepared with asphalt binder possessing an elevated high-temperature performance grade. Further, the high-temperature stability of the FAM weakened as the number of loads increased, and the damage resulting from this process affected the high-temperature stability of the FAM to the same extent as the creep and recovery processes.
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影响因子：
7.4
作者：
Y. Bi;Ruyi Wei;Rui Li;Jiu-peng Zhang;J. Pei
通讯作者：
Y. Bi;Ruyi Wei;Rui Li;Jiu-peng Zhang;J. Pei
DOI：
10.1080/10298436.2021.1969020
发表时间：
2021-09-15
影响因子：
3.8
作者：
Margaritis, Alexandros;Hasheminejad, Navid;Van den Bergh, Wim
通讯作者：
Van den Bergh, Wim
DOI：
10.3390/ma14195892
发表时间：
2021-10-08
期刊：
Materials (Basel, Switzerland)
影响因子：
--
作者：
Zhang Q;Gu X;Yu Z;Liang J;Dong Q
通讯作者：
Dong Q
影响因子：
1.7
作者：
B. Radovskiy
通讯作者：
B. Radovskiy
影响因子：
3.8
作者：
Liu, Hanqi;Zeiada, Waleed;Samarai, Mufid
通讯作者：
Samarai, Mufid