天荒坪改性沥青玛蹄脂封闭层老化试验研究

Technical Supervision in Water Resources(2020)

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Abstract
结合天荒坪上水库沥青混凝土防渗面板封闭层修复工程,对工程应用的改性沥青玛蹄脂进行紫外光老化试验.试验结果表明,在同一温度、辐照度的情况下,针入度随老化时间的延长而降低,软化点与黏度随着老化时间的延长而增高,改性沥青玛蹄脂老化破坏不可避免,需定期检测,防止封闭层更新不及时影响防渗层的保护作用.
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