Performance evaluation of asphalt containing layered double hydroxides with different zinc ratio in the host layer
Performance evaluation of asphalt containing layered double hydroxides with different zinc ratio in the host layer
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DOI：
10.1080/10916466.2016.1248774
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发表时间：
2017-01
影响因子：
1.5
通讯作者：
Song Xu;Jianying Yu;Changbin Hu;Lijuan Jia;L. Xue
中科院分区：
文献类型：
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作者：
Song Xu;Jianying Yu;Changbin Hu;Lijuan Jia;L. Xue
摘要研究了5种不同锌比的层状双氢氧化物（LDHs）对沥青物理流变性能、化学成分及抗紫外线老化性能的影响。结果表明，ldh提高了沥青在高温下的抗变形能力。经紫外光老化后，ldh改性沥青的物理流变性能及化学成分变化均小于沥青，表明其抗紫外光老化性能有所提高。相比之下，层中锌含量较高的ldh具有更突出的紫外线反射能力，从而对提高沥青的抗紫外线老化性能产生了有利的影响。
ABSTRACT The effects of five layered double hydroxides (LDHs) with different zinc ratio on the physical and rheological properties, chemical components, and anti-UV aging performance of asphalt were evaluated. Results show that LDHs improve the deformation resistance of asphalt at high temperature. After UV aging, LDH-modified asphalts show the smaller changes of physical and rheological properties and chemical components in comparison with asphalt, indicating the improved UV aging resistance. By comparison, the LDHs with higher ratio of zinc in the layers have the more outstanding UV reflection ability, leading to a beneficial effect in improving UV aging resistance of asphalt.