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Investigation of Low Heat Accumulation Asphalt Mixture and Its Impact on Urban Heat Environment

机译:低热量累积沥青混合料及其对城市热环境的影响研究

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摘要

This study is focused on investigating the effectiveness of low heat accumulation asphalt mixture and its impact on the urban heat environment. Infrared radiation experiments showed that the temperature of the asphalt mixture decreased with the increase in far-infrared radiant material. The results also revealed that, compared to asphalt with 0% far-infrared radiant content, the asphalt material with a certain ratio of far-infrared radiation material had higher stability at high and low temperatures as well as good water absorption capacity. The Marshall stability of the specimen mixed with 6% far-infrared radiant was higher by 12.2% and had a residual stability of up to 98.9%. Moreover, the low-temperature splitting tensile strength of the asphalt mixture with 6% far-infrared radiation material increased by 21.3%. The friction coefficient of the asphalt mixtures with 6% and 12% far-infrared radiation material increased by 17.7% and 26.9%, respectively.
机译:这项研究的重点是调查低热量积聚的沥青混合料的有效性及其对城市热环境的影响。红外辐射实验表明,随着远红外辐射材料的增加,沥青混合料的温度降低。结果还表明,与0%远红外辐射含量的沥青相比,具有一定比例远红外辐射材料的沥青材料在高温和低温下具有更高的稳定性以及良好的吸水能力。掺有6%远红外辐射的样品的马歇尔稳定性更高,达到了12.2%,残留稳定性高达98.9%。而且,具有6%的远红外辐射材料的沥青混合物的低温劈裂拉伸强度增加了21.3%。含6%和12%远红外辐射材料的沥青混合料的摩擦系数分别增加了17.7%和26.9%。

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