Journal of Adhesion Science and Technology ( IF 2.7 ) Pub Date : 2021-01-19 , DOI: 10.1080/01694243.2021.1871813 Ziqi Zeng 1 , Yinchuan Guo 1 , Peng Li 1 , Aiqin Shen 1 , Chaowei Zhai 1
Abstract
To delay the expansion of reflective cracks on semi-rigid base asphalt pavements and strengthen the cracking resistance of asphalt rubber stress-absorbing membrane interlayers, the bonding and fracture performances as well as cracking resistance of a fiber-reinforced asphalt rubber stress-absorbing membrane interlayer (FAR-SAMI), rubber asphalt stress-absorbing membrane interlayer (AR-SAMI), and SBS-modified asphalt stress-absorbing membrane interlayer (AS-SAMI) were studied. In addition, the resistance to reflective cracking for FAR-SAMI was evaluated by finite element (FE) analysis. The results show that FAR-SAMI exhibits appropriate bonding performance at 15 and 40 The addition of glass fiber increases the toughness of the composite specimens and the fracture energy of FAR-SAMI increases by 23% compared with AR-SAMI. Furthermore, FAR-SAMI is effective in restraining the development of reflection cracks and prolonging the fatigue life. FE analysis also shows that FAR-SAMI can significantly reduce the stress concentration phenomenon in the crack. Therefore, fiber-reinforced asphalt rubber was found to be suitable as a SAMI to prevent and control reflective cracking.
中文翻译:
纤维增强沥青橡胶作为应力吸收膜夹层的性能研究
摘要
延缓半刚性基层沥青路面反射裂缝的扩展,增强沥青橡胶应力吸收膜夹层的抗裂性能,提高纤维增强沥青橡胶应力吸收膜夹层的粘结断裂性能和抗裂性能(FAR-SAMI)、橡胶沥青应力吸收膜夹层(AR-SAMI)和SBS改性沥青应力吸收膜夹层(AS-SAMI)。此外,通过有限元 (FE) 分析评估了 FAR-SAMI 的抗反射开裂能力。结果表明 FAR-SAMI 在 15 和 40玻璃纤维的加入提高了复合材料试样的韧性,FAR-SAMI的断裂能比AR-SAMI提高了23%。此外,FAR-SAMI 在抑制反射裂纹的发展和延长疲劳寿命方面是有效的。有限元分析还表明,FAR-SAMI 可以显着减少裂纹中的应力集中现象。因此,发现纤维增强沥青橡胶适合作为 SAMI 来预防和控制反射裂缝。