在老式混凝土路面上对聚合物修改的涂层的评估:关于粘附性质的实验研究
Kyungnam Kim1, Tri Ho Minh Le2
1Department of Highway & Transportation Research, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Goyang-si 10223, Gyeonggi-Do, Republic of Korea.
Polymers
|July 14, 2023
概括
一种新的聚合物修改的无轨装涂层显著改善了青覆盖层对旧混凝土路面的粘附性. 这种先进的材料提高了路面的耐用性,没有过程延迟,与传统选项相比,提供更高的粘合强度.
科学领域:
- 土木工程 土木工程是指土木工程.
- 材料科学 材料科学 材料科学
- 铺路工程工程 铺路工程
背景情况:
- 用青覆盖旧的混凝土路面会带来粘附性挑战.
- 确保青混凝土覆盖层的长期耐用性,需要可靠的层间粘合.
- 现有的装涂料材料可能无法为苛刻的路面恢复项目提供足够的粘附力.
研究的目的:
- 开发和评估一种新型的聚合物修饰的无轨装涂层,用于混凝土路面上的青覆盖.
- 为了提高路面覆盖的粘附性能和耐用性.
- 评估喷涂速率和表面条件对板涂层性能的影响.
主要方法:
- 在各种表面上使用0.30,0.45和0.60 l/m2的喷雾量进行了拉伸粘附测试.
- 直接拉力和剪接强度测试评估了聚合物修饰的接涂层的基本和粘附性能.
- 模拟的分离和重新粘合过程被用于评估应力下的耐用性.
主要成果:
- 经过聚合物修改的接涂层表现出明显更高的粘合强度:与快速结产品相比,在混凝土上是1.68倍,在青上是1.78倍.
- 直接拉伸强度在0.45 l/m2时达到1.05 MPa,比快速设置的接层高1.21倍.
- 剪接强度是传统快速设置接涂层材料的1.90倍,在模拟层分离后,粘合力保持在63%以上.
结论:
- 新的聚合物修改的无轨接涂层有效地增强了混凝土上的青覆盖层的层间粘合力.
- 这种材料提供了卓越的粘合性能和耐用性,而不会影响施工时间表.
- 开发的克外套代表了路面修复技术的重大进步,改善了覆盖层的寿命.
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