应用FA-CGP-GGBS地质聚合物作为水泥替代品在粉碎石基层中的应用
Xiaozhe Wang1, Ling Luo1,2, Yongjun Qin1,2
1School of Civil Engineering and Architecture, Xinjiang University, Urumqi 830047, China.
Materials (Basel, Switzerland)
|March 14, 2026
概括
由煤炭粉,飞灰和渣制成的地质聚合物增强了碎石的基础. 与传统水泥相比,这些地质聚合物混合物显示出更好的强度和耐用性,提供了一个可持续的替代品.
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:
- 传统的水泥生产对环境产生了重大影响.
- 固体废物材料,如煤粉 (CGP),飞灰 (FA) 和颗粒高炉渣粉 (GGBS) 是丰富的,但未得到充分利用.
- 开发可持续的粘合剂对于减少建筑的碳足迹至关重要.
研究的目的:
- 调查使用地质聚合物作为粉碎石基应用中的水泥替代品的可行性.
- 评估地质聚合物粘合物的机械性能,水稳定性和耐侵蚀性.
- 了解控制地质聚合物形成和性能的反应机制.
主要方法:
- 用酸盐溶液激活的CGP,FA和GGBS合成了地聚合物结合剂.
- 机械测试包括不受限制的压力强度和分裂拉伸强度.
- 通过水稳定性和耐侵蚀性测试来评估耐用性.
- 微结构分析使用MIP,SEM,XRD和TG来阐明反应机制.
主要成果:
- 与水泥混合物相比,使用7%的水泥材料剂量的地聚合物混合物显示,未受限制的压力强度增加了7.58%,裂纹抗拉强度增加了9.52%.
- 由于水的稳定性和侵蚀造成的强度损失率分别减少了1.000%和0.315%.
- 与水泥系统相比,地质聚合物系统显示无害毛孔增加8%,有害毛孔减少10%,质量损失率减少4.29%.
结论:
- 使用CGP,FA和GGBS的地质聚合物在粉碎石基中的传统水泥相比,提供了更高的机械强度和耐久性.
- 地质聚合物系统表现出改善的孔隙结构和减少的质量损失,表明增强的稳定性.
- 这项研究提出了固体废物利用的可行方法,并为土木工程项目中地质聚合物应用提供了理论基础.
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