Characterization of thermal properties of bituminous mastic containing different fillers to be used in the cool pavement
Characterization of thermal properties of bituminous mastic containing different fillers to be used in the cool pavement
复制标题
冷路面中使用的含有不同填料的沥青玛蹄脂的热性能表征
DOI：
10.1016/j.conbuildmat.2020.120362
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发表时间：
2020-12
影响因子：
7.4
通讯作者：
Liu Xing
中科院分区：
文献类型：
--
作者：
Pan Jingsheng;Xing Hongyuan;Liu Gang;Wang Yong;Liu Xing
为提高路面的抗变形能力，减少热岛效应，设计了具有定向导热功能的冷路面。国内外对沥青混合料在低温路面中的热性能进行了大量的研究，但对在热传导中起着重要作用的沥青玛蹄脂的研究较少。本研究采用普通填料、空心微珠和石墨制备胶粘剂样品。常规填料是由石灰石制成的，而空心微珠是燃煤电厂在燃煤过程中形成的。采用热导率仪对胶粘剂的热性能进行了研究。采用扫描电镜观察了不同填料的形貌特征。采用动态剪切流变仪研究了胶料的流变性能随温度的变化。采用Bruggeman模型和有限元法分析了胶泥的热传递机理。在此基础上，推荐采用粘结剂：普通填料：空心微珠= 1：0.5：0.5（重量比）的砂胶作为面层，以提高其隔热性能;采用粘结剂：石墨= 1：1的砂胶作为次层，以提高其导热性能和抗车辙性能。
The cool pavement with the function of oriented heat conduction was designed to improve its deformation resistance and decrease the heat island effect. Lots of research had been performed on the thermal properties of asphalt mixture in the cool pavement, but less of them focused on the mastic which played a vital role in the heat conduction. In this study, the normal filler, the cenospheres and the graphite were adopted to prepare the mastic samples. The normal filler was made of the limestone, and the cenospheres were obtained during coal-burning process in coal-fired power plants. The thermal conductivity analyzer was used to investigate the thermal properties of mastic. The scanning electron microscopy was employed to observe the morphological characteristics of different fillers. Dynamic shear rheometer was adopted to evaluate the rheological properties of the mastic as a function of temperature. Bruggeman’s model and the finite element method were used to analyze the mechanism of thermal transmission of mastic. Based on the results, the mastic with the ratio of binder:normal filler:cenospheres = 1:0.5:0.5 by weight was recommended to be applied on the top layer of the cool pavement to improve its thermal insulation, and the one with the ratio of binder:graphite = 1:1 was recommended in its sub-layer to improve its thermal transmission and rutting resistance.
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DOI：
10.1061/9780784412473.007
发表时间：
2012-11
期刊：
Cold Regions Engineering
影响因子：
--
作者：
M. Iwama;T. Yoshinaka;S. Omoto;N. Nemoto
通讯作者：
M. Iwama;T. Yoshinaka;S. Omoto;N. Nemoto
影响因子：
6.4
作者：
Du Yinfei;Wang Shengyue;Wang Shuang-jie;C. Jianbing
通讯作者：
Du Yinfei;Wang Shengyue;Wang Shuang-jie;C. Jianbing
影响因子：
7.4
作者：
Carnielo, Emiliano;Zinzi, Michele
通讯作者：
Zinzi, Michele
影响因子：
7.4
作者：
Gallego, Juan;del Val, Miguel A.;Paez, Antonio
通讯作者：
Paez, Antonio
粉煤灰微珠沥青混合料热行为及高温性能评价
影响因子：
7.4
作者：
Du Yinfei;Xu Ling;Deng Haibin;Deng Deyi;Wu Hao;Liu Weidong
通讯作者：
Liu Weidong