在合前体上进行静态压缩,并优化度,以提高地质聚合物的强度和耐久性
Khuram Rashid1, Mounir Ltifi2,3, Idrees Zafar2
1Department of Architectural Engineering and Design, Faculty of Civil Engineering, University of Engineering and Technology, Lahore 54890, Pakistan.
Materials (Basel, Switzerland)
|June 19, 2024
概括
这项研究使用飞灰 (FA) 和渣渣 (GGBS) 优化了地质聚合物块. 虽然100%的FA块表现出最佳强度,但所有块在硫酸盐和酸中都显著降解,这表明尽管有可持续性好处,但耐用性有限.
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:
- 地质聚合物开发通常使用静态压缩,需要优化性激活剂度的前体,如飞 (FA) 和地面颗粒高炉渣 (GGBS).
- 了解地质聚合物结构块的最佳混合和固化对于提高压力强度和耐久性至关重要.
研究的目的:
- 为了优化由FA和GGBS制成的地质聚合物块的压力强度和耐久性.
- 评估地质聚合物块在硫酸盐和酸性攻击下的性能.
主要方法:
- 研究了FA和GGBS的比例,具有不同的NaOH度 (8-12M) 和固化条件.
- 通过硫酸盐和酸性溶液暴露,监测花朵的持续时间超过56天.
- 利用里埃变换红外光谱法 (FTIR) 来分析化学变化.
主要成果:
- 100%的FA块实现了最高的压力强度和最低的散装密度.
- 25%的GGBS块的热固化导致与环境固化相比,强度增加了305%.
- 所有块在硫酸盐和酸性环境中都经历了超过40%的强度损失,显著的花和FTIR表明了化的泄露.
结论:
- 地质聚合物块提供优越的可持续性和可行性比传统的,尽管在激进的环境中耐用性挑战.
- 100%的FA地质聚合物块,虽然最初很强,但在硫酸盐和酸暴露下显示出显著的降解.
- 需要进一步的研究,以提高结构应用的地质聚合物块的长期耐用性.
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