Applicability of Solar Heat-Blocking Pavement Technology to Permafrost Regions
Applicability of Solar Heat-Blocking Pavement Technology to Permafrost Regions
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DOI：
10.1061/9780784412473.007
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发表时间：
2012-11
期刊：
影响因子：
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通讯作者：
M. Iwama;T. Yoshinaka;S. Omoto;N. Nemoto
中科院分区：
文献类型：
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作者：
M. Iwama;T. Yoshinaka;S. Omoto;N. Nemoto
近年来，由于全球变暖，沥青路面在夏季达到60 ℃以上。此外，由于夏季高温导致中暑而需要住院治疗的患者人数不断上升。在寒冷地区，由于最近的气候变化，富含冰的永久冻土融化，永久冻土上的路面沉降一直是一个严重的问题。因此，从可持续性和环境的角度来看，降低地表温度已成为一个越来越重要的问题。为了解决这些问题，从铺路的角度来看，太阳能热阻断路面技术已被开发，以实现降低表面温度和延长路面寿命。本文介绍了太阳能热阻断路面技术的环境和实际效果，并解决其在多年冻土地区的潜力。通过该系统的开发和应用，本文得出了一些结论。关于温度，现场结果表明，通过使用太阳能热阻挡路面，表面温度降低约16°C。在服务性方面，太阳能热阻断路面有效地减少车辙，因为车辙深度在机场滑行道上减少了约一半相比，致密级配沥青路面。关于它的应用，现场监测结果表明，太阳能热阻挡路面可能是有用的，在减缓冻土退化，因为在夏季和冬季的表面温度的降低被证实。
In recent years, asphalt paving surfaces have reached 60°C or more in summer due to global warming. In addition, the number of patients requiring hospitalization due to heatstroke caused by the summer heat has been rising. Looking at cold regions, settlement of paving surfaces on permafrost has been a serious problem as ice-rich permafrost thaws due to recent climate change. Therefore, reducing the surface temperature has become an increasingly important issue, in terms of sustainability as well as the environment. In order to tackle these problems from a paving perspective, solar heat-blocking pavement technology has been developed to achieve a reduction in surface temperature and extended pavement longevity. This paper describes the environmental and practical effects of solar heat-blocking pavement technology and addresses its potential for permafrost regions. Through its development and application, a number of conclusions are drawn from this study. With regard to the temperature, field results show that the reduction in surface temperature through use of the solar heat-blocking pavement is approximately 16°C. In terms of serviceability, solar heat-blocking pavement effectively curtails rutting, since the rut depth on an airport taxiway was reduced by about half compared to dense-graded asphalt surfaces. With respect to its application, a field monitoring result reveals that solar heat-blocking pavement is likely to be useful in mitigating permafrost degradation, since the reduction in surface temperature is confirmed both in summer and winter.