基于GGBFS的含有铁渣聚合物的活性复合材料的压力强度和离子透阻力
Jae-In Lee1, Chae-Young Kim1, Joo-Ho Yoon1
1Department of Architectural Engineering, Wonkwang University, 460 Iksan-daero, Iksan 54538, Republic of Korea.
Materials (Basel, Switzerland)
|October 16, 2024
概括
本研究探讨在活性复合材料中使用铁渣聚合物 (FSA) 作为传统水泥的可持续替代品. 结果显示,FSA增强了压力强度和抗性,特别是在以为基础的激活剂.
科学领域:
- 可持续的建筑材料 可持续的建筑材料
- 地质聚合物化学 地质聚合物化学
- 废弃物价值化 废弃物价值化 废弃物价值化
背景情况:
- 活性复合材料为波特兰水泥提供了一个可持续的替代品,减少二氧化碳排放.
- 铁渣聚合物 (FSAs) 是一个潜在的废物材料,可用于建筑复合材料.
- 对活性复合材料中的FSA存在有限的研究,特别是关于激活剂类型的影响.
研究的目的:
- 为了研究使用FSAs作为天然细聚合物的部分替代品在基于高炉渣的活性复合材料中使用FSAs的可行性.
- 评估不同FSA含量 (0-30%) 对这些复合材料新鲜和硬化性能的影响.
- 为了比较用基 (CaO) 和基 (Na2SiO3) 激活剂激活的复合材料的性能.
主要方法:
- 活性复合材料的制备,使用有0%,10%,20%和30%FSA替代的磨砂颗粒高炉渣.
- 评估流动性,微热,压力强度在7天和28天,以及离子透阻力.
- 使用基于 (CaO) 和基于 (Na2SiO3) 的活性剂进行比较分析.
主要成果:
- 与对照样本相比,加入FSA稍微增加了最大水温度.
- 用CaO激活的复合材料表现出更高的早期 (7天) 压力强度,而使用20%FSA (NF20) 的Na2SiO3激活复合材料达到最高的28天强度 (~55.0MPa).
- 激活Na2SiO3复合材料表现出显著更高的离子透阻力,随着FSA含量增加,总电荷传递减少.
结论:
- 铁渣聚合物可以有效地用于活性复合材料,为可持续建筑提供了一条道路.
- 选择性激活剂显著影响机械性能和耐用性,性激活剂在与FSA相结合时表现出优越的长期性能和抗性.
- 对优化FSA含量和激活剂组合的进一步研究可以导致先进的,环保的建筑材料.
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