使用中央复合设计方法研究基于MK-GGBFS的地质聚合物糊的混合设计和机械性能
Ziqi Yao1, Ling Luo2,3, Yongjun Qin1,4
1College of Civil Engineering and Architecture, Xinjiang University, Urumqi, 830017, China.
Scientific reports
|April 20, 2024
概括
从金属和渣制成的地质聚合物是一种可持续的替代水泥. 优化的混合设计显著提高了可加工性和强度,减少了二氧化碳排放.
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.
- 环境科学 环境科学
背景情况:
- 地质聚合物是活性化材料,比传统水泥更有利于环境.
- 它们表现出快速硬化,高强度,以及对酸和的抗性.
- 像甲 (MK) 和磨砂颗粒高炉渣 (GGBFS) 这样的原材料很容易获得.
研究的目的:
- 研究液体固体比率 (L/S) 和酸盐模量 (Ms) 对MK-GGBFS地质聚合物糊 (MSGP) 性能的影响.
- 优化MSGP的混合设计,以提高可操作性和强度.
- 为了比较MSGP特性与普通波特兰水泥 (OPC) 糊.
主要方法:
- 用MK和GGBFS作为前体合成了地质聚合物糊.
- 采用中央复合设计来优化L/S和Ms参数.
- 性能通过可加工性,强度和微观结构测试来评估.
主要成果:
- 为了优化混合物设计,建立了>98%的适合度的回归方程.
- 确定了最佳组合设计:L/S = 0.75和Ms = 1.55.
- 与OPC相比,优化的MSGP表现出更好的可加工性和保持强度,初始设置时间减少71.8%,流动性增加15.3%,28天的压力强度增加15.3%.
结论:
- 地质聚合物是波特兰水泥的可行,环保的替代品.
- 优化的MSGP配方增强了关键性能特征.
- 这项技术促进了绿色生产,并利用了MK和GGBFS等工业副产品.
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