在使用超吸收聚合物的自固自压缩混凝土混合物中,微观结构和保持水的动力学
Lija Rajamony Laila1, Aarthi Karmegam2, Siva Avudaiappan3,4
1Department of Civil Engineering, KCG College of Technology, Chennai 600097, India.
Polymers
|September 28, 2023
概括
超吸收性聚合物 (SAP) 和花岩粉 (GP) 增强了可持续混凝土的水分保留. 使用SAP和GP提前释放水改善了水合和水动力学,从而实现更好的自身固化.
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:
- 自生硬化对于混凝土的性能至关重要,它依赖于内部水的运动.
- 可持续的混凝土生产需要替代传统水泥,如花岩粉 (GP) 和飞 (FA).
- 超吸收性聚合物 (SAP) 可能有助于改善混凝土混合物的水分保留.
研究的目的:
- 为了研究超吸收聚合物 (SAP) 对微观结构特征和保持水的动力学的影响.
- 评估花岩粉 (GP) 和飞灰 (FA) 作为可持续混凝土中水泥替代物的有效性.
- 为了分析含有SAP的自生固化自压缩混凝土 (GP-ACSSC) 混合物中的水缓解动力学.
主要方法:
- 实验分析了水的吸附性,保持水分和水分.
- 测试具有不同SAP和GP度的自生固化自压缩混凝土 (GP-ACSSC) 混合物.
- 评估早期的水分和水分在水泥糊中的分布.
主要成果:
- 固化水的早期释放促进了均和即时的水分配,增强了保留水的动力学.
- 添加SAP (高达0.6%) 和GP替代 (高达15%) 对水动力学参数产生了积极的影响.
- SAP和GP的联合使用显示出有利的微观结构特性和改善的保留水.
结论:
- SAP和GP有效地改善了可持续混凝土的保留水和水化动力学.
- 优化SAP和GP的度可以导致增强的自身固化和减少碳足迹.
- 这项研究为开发更耐用,更环保的混凝土材料提供了洞察力.
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