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首页> 外文期刊>Arabian Journal for Science and Engineering >Impacts of Maltene on the Wettability and Adhesion Properties of Rejuvenated Asphalt Binder
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Impacts of Maltene on the Wettability and Adhesion Properties of Rejuvenated Asphalt Binder

机译：马耳他对恢复沥青粘合剂润湿性和粘附性能的影响

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摘要

In recent years, the use of reclaimed asphalt pavement (RAP) has gained much attention and is widely accepted. However, the rejuvenating agents which are usually used to reduce the rigidity of the aged asphalt are subjected to diverse climate circumstances. The present work used maltene as a rejuvenator to investigate several measurements regarding stripping failure. The evaluation of wettability and work of adhesion (W_A) was assessed using the sessile drop method. Meanwhile, asphalt and asphalt-water aggregate systems were tested for acid and water resistance using chemical and water immersion tests. Next, atomic force microscopy (AFM) was used to evaluate the changes in the microstructures of the asphalt binders. The experimental results revealed that the ideal percentages of maltene which should be added to 30% and 50% aged asphalt were 8% and 16%, respectively. Meanwhile, the wettability, W_A and resistance to stripping differed depending on the percentage of aged asphalt in the blend. However, the inclusion of maltene has improved samples containing high percentages of aged asphalt. On the other hand, the resistance to boiling water containing acid decreased slightly with the addition of maltene. Nevertheless, all the rejuvenated samples exhibited better results than virgin asphalt. Moreover, the AFM results were in line with the observations, suggesting the suitability of maltene for the functional application of pavement.
机译：近年来，使用再生沥青路面（RAP）的使用越来越多，被广泛接受。然而，通常用于降低老化沥青的刚性的恢复剂受到不同的气候环境。本作本作用马来拓作为一种恢复剂，以研究关于剥离失效的几次测量。使用无柄液滴法评估对润湿性和粘合性（W_A）的润湿性和工作的评估。同时，使用化学和水浸渍试验测试沥青和沥青水骨料系统进行酸和耐水性。接下来，使用原子力显微镜（AFM）来评估沥青粘合剂的微观结构的变化。实验结果表明，应加入30％和50％老化沥青的优选百分比分别为8％和16％。同时，根据混合物中老化沥青的百分比，润湿性，W_A和抗剥离的抵抗不同。然而，包含马耳他的样品具有高百分比的老化沥青的样品。另一方面，通过加入马耳他，含有酸的含水酸的抗性略微下降。然而，所有恢复活力的样本都表现出比维珍沥青更好的结果。此外，AFM结果符合了观察结果，表明马耳他对路面功能施加的适用性。

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