Study on Monitoring and Analysis Method of Heating Temperature Field of Hot In-Place Recycling Asphalt Pavement
In this study,a method based on thermal infrared imager is proposed to monitor the heating temperature at different stages in hot in-place recycling,and an analysis method is established using the indexes of pavement temperature representative value,the proportion of temperature higher than 200℃,the coefficient of temperature variation in the transverse and the temperature dissipation rate along the road. Meanwhile,the heating temperature fields of three heating systems including fire,infrared radiation and hot air cycle are analyzed and compared using this monitoring and analysis method. The research results indicate that the method proposed in this paper can be used to monitor and analyze the heating temperature field in hot in-place recycling process more comprehensively and effectively,which can play a better role in guiding the construction of hot in-place recycling.
hot in-place recyclingheating temperature fieldinfrared thermogramasphalt pavementmonitoring and analysis