加增强环境固化灰基地质聚合物粘合剂
Mustafa Shamsah1,2, Robin Kalfat3, Kolluru V L Subramaniam4
1Department of Civil and Construction, School of Engineering, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia.
Scientific reports
|July 15, 2025
概括
这项研究表明,将少量渣添加到活性飞灰混合物中,可以提高压力强度和设置控制. 这种方法提供了一种系统的方式,在室温下制造高强度的飞灰粘合剂.
科学领域:
- 材料科学 材料科学 材料科学
- 地质化学 地质化学
- 土木工程 土木工程是指土木工程.
背景情况:
- 活性飞灰 (AAFA) 粘合剂是波特兰水泥的可持续替代品.
- 优化AAFA属性需要了解构成材料和激活条件的影响.
- 反应性氧化物比率显著影响AAFA系统的性能.
研究的目的:
- 为了研究活性氧化物比率对活性飞灰混合物的性能的影响.
- 评估渣替代对流动性,定时间,压力强度,早期动力学和反应产物的影响.
- 提出一种系统的方法,以在室温下生产高强度飞灰粘合剂.
主要方法:
- 用激活飞灰混合物的制备,含有不同含量的渣渣.
- 流动性,定位时间和压力强度的表征.
- 早期动力学和反应产物的分析,包括-酸盐水合物 (NASH) 地质聚合物形成.
主要成果:
- 根据反应电位制备的活性飞灰混合物在室温固化时使用低度氧化物表现出一致的强度.
- 5%的飞灰与渣的替代增强了室温固化下压力强度.
- 含有渣可以提高早期反应能力,有助于设置控制,并促进飞灰溶解,从而通过NASH地质聚合物形成来提高协同力的强度.
结论:
- 通过战略性废渣含量优化反应性氧化物比率对于提高活性飞灰结合剂的性能至关重要.
- 添加一小部分渣可以协同改善AAFA系统的压力强度和结特性.
- 介绍了一种系统的室温固化程序,用于生产高强度的飞灰粘合剂,使用活性化,利用废渣结合的好处.
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