粉碎改性热混合青 (WMA) 的病变学
Ghazi G Al-Khateeb1,2, Alaa Sukkari1, Helal Ezzat3,4
1Department of Civil and Environmental Engineering, College of Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates.
Polymers
|April 13, 2024
概括
将废弃的汽车碎添加到热混合添加剂中,如Sasobit和Zycotherm,可以改善青粘合剂的性能. 增加的含量提高了性能,为各种气候应用提供了更好的反性和疲劳寿命.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 可持续路面技术 可持续路面技术
背景情况:
- 热混合青添加剂 (Sasobit,Zycotherm) 改变了粘合剂的性能.
- 废弃的汽车碎是青粘合剂的潜在修饰剂.
- 优化粘合剂性能需要了解添加剂-相互作用.
研究的目的:
- 研究碎对Sasobit和Zycotherm修饰的青粘合剂的影响.
- 为了评估不同度的粉碎的物理和质性质变化.
- 为了确定不同气候条件的最佳粘合剂配方.
主要方法:
- 青结合剂被修改为Sasobit (2%,4%) 和Zycotherm (1.5%,3%).
- 废弃的汽车碎被添加到0%,10%,15%和20%的度.
- 进行了传统的 (透,软化点) 和高级的风湿学测试 (RV,DSR,MSCR,LAS,BBR).
主要成果:
- 碎增加了软化点和旋转粘度,增强了复杂的剪切模量 (G*).
- 化粘合剂显示出更好的结性能和低温性能等级 (PG).
- 疲劳寿命随着碎含量增加,具有特殊配方 (Z1.5CR20,S2CR20) 显示出优越的耐用性.
结论:
- 碎的加入对青粘合剂的性能产生了积极的影响,特别是蚀阻力和疲劳寿命.
- Z1.5CR20适用于寒冷的气候,而S2CR20适用于炎热的气候.
- 这项研究为在可持续路面工程中利用回收材料提供了宝贵的见解.
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