Deformation Characteristics of Smart Asphalt Pavement Embedded with Shape Memory Alloy Wires
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TU512.9

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    Abstract:

    The asphalt mixtures with self-repairing function were developed by utilizing shape memory effect of shape memory alloys. The phase transformation behavior and shape recovery properties of the shape memory al- loy wires were characterized by differential scanning calorimeter (DSC) and mechanical tester. The deformation recovery experiments were carried out on wheel track samples to verify the self-healing performance of the bitu- men pavement material. The research results show that the shape memory alloy wires presents two-stage B2-R- B19 martensitic transformation and a recovered strain of 7.8% with 10% pre-strain. These shape memory alloy wires can improve the shape recovery rates of the wheel tracking samples significantly. The paving mode of the shape memory alloy wires also plays an important role in the shape recovery rate of the asphalt mixtures. Finally, the wheel tracking samples paved with bidirection and double -layer shape memory alloy wires show higher shape recovery rate than that of samples paved with one-direction and one layer shape memory alloy wires.

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闫国杰.形状记忆合金智能沥青路面的变形特性研究[J].华东交通大学学报英文版,2018,35(4):138-142.
Yan Guojie. Deformation Characteristics of Smart Asphalt Pavement Embedded with Shape Memory Alloy Wires[J]. JOURNAL OF EAST CHINA JIAOTONG UNIVERSTTY,2018,35(4):138-142

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  • Online: May 26,2021
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