铁渣地质聚合物混凝土的性能和统计特征
Shanshan Wang1, Qun Huang2,3, Zihong Xu2
1School of Management Engineering, Zhejiang Guansha Vocational and Technical University of Construction, Dongyang, 322100, China. 20211908@zjgsdx.edu.cn.
Scientific reports
|October 29, 2025
概括
铁渣 (FNS) 可以取代地聚合物混凝土 (GC) 中的河沙,提供高早期强度和可加工性. 用33%的FNS实现最佳性能,证明了其作为可持续建筑材料的潜力.
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:
- 河流沙是混凝土中的常规聚合物.
- 地质聚合物混凝土 (GC) 为波特兰水泥混凝土提供了一个可持续的替代方案.
- 铁渣 (FNS) 是一种工业副产品,具有作为建筑材料的潜力.
研究的目的:
- 评估在地聚合物混凝土 (GC) 中用铁渣 (FNS) 取代河流沙的可行性.
- 分析FNS对GC可加工性,机械性质和微观结构的影响.
- 为了统计地描述FNS-GC的压力强度分布.
主要方法:
- 对GC混合物进行实验研究,其水与粘合物比率,聚合物与粘合物比率以及FNS替代水平各不相同.
- 使用沉测试 (被归类为高流动性混凝土) 评估可行性.
- 评估压力强度,分裂拉伸强度和微观结构.
- 统计分析压力强度数据使用正常,日志正常和韦布尔分布.
主要成果:
- 越来越多的FNS替代减少了条,而较高的聚合物与粘合物比率或较低的水与粘合物比率进一步降低了可加工性.
- FNS-GC在早期表现出显著的力量发展,分别在3天和14天达到28天强度的72%,94%.
- 在33%的FNS替换时观察到峰值压力和分裂拉伸强度,强度与压力强度正相关.
- 压缩强度显示出相当大的变异性 (COV:0.07-0.17),其中韦布尔分布提供了最佳适合.
结论:
- 铁渣是地聚合物混凝土中河流沙子的可行替代品.
- 峰值机械性能的最佳FNS替换水平为33%.
- 韦布尔分布有效地描述了FNS-GC的压力强度行为,突出了其统计特性.
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