固化温度对金属基地质聚合物的强度的影响
Adelino Lopes1, Sérgio Lopes2, Isabel Pinto3
1INESC Coimbra, Department of Civil Engineering, University of Coimbra, 3030-290 Coimbra, Portugal.
Materials (Basel, Switzerland)
|December 9, 2023
概括
这项研究研究了基于甲的地质聚合物作为一种具体的替代品. 建议降低30°C以下的固化温度以保持机械强度,因为更高的温度显著降低了曲和压力强度.
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.
- 地质聚合物化学 地质聚合物化学
背景情况:
- 地质聚合物为传统混凝土提供了一个可持续的替代品.
- 现有的文献对不同地质聚合物前体 (飞,渣渣,甲) 的最佳固化温度提出了相互矛盾的建议.
- 基于甲高的地质聚合物需要特殊的固化条件,与其他地质聚合物类型不同.
研究的目的:
- 在不同的固化温度下评估基于甲的地质聚合物样本的机械强度.
- 为了确定基于甲高的地质聚合物的最佳固化温度范围.
- 为了比较金属地质聚合物与水泥砂的应力-应变行为.
主要方法:
- 制备基于甲的地质聚合物混合物.
- 在10,15,20,30,40和50°C的温度下对地质聚合物样本进行固化.
- 机械测试包括曲和压力强度,以及应力应变分析.
主要成果:
- 在30°C以下的固化温度下观察到最佳的机械强度.
- 与室温固化相比,在50°C固化导致屈曲强度降低>35%,压力强度降低>60%.
- 甲高地质聚合物在最终应力下表现出比水泥砂 (2-2.5倍) 的更高的应力.
结论:
- 在30°C以下的固化温度对于最大限度地提高基甲基地质聚合物的机械强度至关重要.
- 升高的固化温度 (例如,50°C) 损害了金属地质聚合物的性能.
- 与传统的水泥材料相比,金属地质聚合物表现出独特的机械性能,包括增强的柔性.
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