对地质聚合物稳定麦卡达姆的宏观和微观机械性能进行实验研究
Hancheng Dan1,2, Shenglong Ma1, Mengjin Li1
1School of Civil Engineering, Central South University, Changsha 410075, China.
Materials (Basel, Switzerland)
|January 25, 2025
概括
高地质聚合物稳定麦卡丹 (GSM) 与水泥稳定麦卡丹 (CSM) 相比,为高速公路路面底层提供了优越的机械和疲劳性能. 微结构分析显示,增强的内部矩阵和接口产品有助于其卓越的性能.
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.
- 地质化学 地质化学
背景情况:
- 地质聚合物是先进的无机结合剂,具有在民用基础设施中的潜力.
- 传统的水泥稳定麦卡丹 (CSM) 在耐用性和环境影响方面面临限制.
- 可持续的替代品对于现代路面施工至关重要.
研究的目的:
- 评估地质聚合物稳定麦卡达姆 (GSM) 的微观和宏观机械性能.
- 为了将GSM的性能与高速公路路面基层的水泥稳定 (CSM) 进行比较.
- 研究影响GSM机械行为的微结构特征.
主要方法:
- 在微观和宏观尺度上对地质聚合物稳定麦卡达姆 (GSM) 的机械测试.
- 间接拉力疲劳测试,以评估长期道路性能.
- 使用像SEM和EDS这样的技术来检查凝结构和接口产品的微结构分析.
主要成果:
- 高GSM显示出出色的机械和疲劳性能,性能优于CSM.
- 在GSM中增加的粘合剂与聚合物的比率导致了显著的性能改进.
- 微结构分析揭示了地质聚合物的网状凝结构和更密集的矩阵,增强了强度和耐疲劳性.
- 像C-A-S-H和C-N-A-S-H凝这样的接口产品有助于早期的强度发展和机械互锁.
结论:
- 高GSM是一种高质量的材料,适用于路面底层.
- 地质聚合物稳定为道路建设中水泥稳定提供了可持续和有效的替代方案.
- 该研究为GSM的长期性能评估和应用提供了有价值的见解.
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