可持续半刚性路面的性能:优化高含量回收青路面,使用复原剂和新型地配方
Naeem Aziz Memon1, Gulzar Hussain Jatoi2,3, Giuseppe Loprencipe2
1Faculty of Civil Engineering, Universiti Teknologi MARA (UiTM), Shah Alam 40450, Malaysia.
Materials (Basel, Switzerland)
|November 13, 2025
概括
使用高回收青路面 (RAP) 含量实现可持续路面施工是可以实现的. 一种化学复原剂和新型粘合剂 (G3) 显著提高了性能,使技术上可行的100% RAP混合物能够减少对环境的影响.
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.
- 可持续建筑 可持续建筑
背景情况:
- 在半刚性路面上使用高含量回收青路面 (RAP) 对可持续性至关重要,但往往会损害机械性能.
- 挑战包括降低强度,耐用性和抗,疲劳和水分的抵抗力.
研究的目的:
- 为了评估含有0%至100%RAP的半刚性路面的性能.
- 评估化学复原剂和四种新型水泥合剂配方 (G1-G4) 的有效性.
- 为了确定RAP含量,再生剂和粘合剂类型之间的协同效应.
主要方法:
- 综合实验测试压力强度,屈曲强度,抗,疲劳寿命和湿度灵敏度.
- 统计分析以确定RAP含量,再生剂和类型相互作用的意义.
- 对各种RAP百分比 (0-100%) 的性能评价,含有或不含化学复原剂和不同合剂配方.
主要成果:
- 增加RAP含量显著降低了路面性能指标.
- 一种化学复原剂有效地减轻了性能损失,特别是在较高的RAP百分比 (p ≤ 0.003) 时.
- 采用高反应性矿物添加剂的制剂G3证明了卓越的性能,使100%RAP混合物能够恢复超过70%的初始混合强度. 观察到RAP含量和料类型 (p ≤ 0.015) 之间存在显著的相互作用.
结论:
- 青春剂和合剂选择之间的优化协同作用是高含量RAP路面可行性的关键.
- 开发的方法验证了技术上可行的100% RAP路面,减少了对原材料的依赖和对环境的影响.
- 土G3在实现100%RAP的高性能,可持续路面方面发挥着关键作用.
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