热激活对基地质聚合物的机械性能和可持续性的影响
Lais Alves1, Nordine Leklou2, Fábio de Simone E Souza1
1Federal Center for Technological Education Celso Suckow da Fonseca (CEFET/RJ), Rio De Janeiro 20271-110, Brazil.
Materials (Basel, Switzerland)
|September 27, 2025
概括
优化地面颗粒高炉渣 (GBFS) 基地聚合物的热固化是关键. 40°C的固化增强了强度,减少了缺陷,而更高的温度会导致退化,支持可持续的建筑.
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:
- 基于地面颗粒高炉渣 (GBFS) 的地质聚合物为波特兰水泥提供了一个可持续的替代品,碳足迹较低.
- 了解热固化对地质聚合物特性的影响对于其实际应用至关重要.
研究的目的:
- 研究热固化温度 (20°C至80°C) 对基于GBFS的地质聚合物的定时间,机械性能,收缩和孔隙性的影响.
- 确定GBFS基地质聚合物的最佳热固化条件.
主要方法:
- 基于GBFS的地质聚合物样本被准备好,并在各种温度 (20°C,40°C,60°C,80°C) 上进行热固化.
- 评估了机械性能 (压力强度),设置时间,收缩和孔隙性.
- 使用了统计分析,包括ANOVA和Tukey hoc后期测试.
主要成果:
- 40°C的固化加速了地质聚合物凝的形成,导致压力强度高达71.9 MPa.
- 在40°C的固化过程中,也减少了收缩和多孔性.
- 在60°C及以上的温度下固化导致结构降解,并降低了长期性能.
结论:
- 热固化显著影响基于GBFS的地质聚合物的性能.
- 在40°C固化时可以达到最佳性能,平衡早期的强度发展与减少缺陷.
- 较高的固化温度 (≥60°C) 对地质聚合物完整性有害,因此需要在建筑应用中仔细控制.
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