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水机制和微观结构 海水基低性活性体石膏水泥的演变
Weisen Liu1, Yanlin Zhen1, Yuan Feng1
1School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China.
Materials (Basel, Switzerland)
|February 13, 2026
概括
这项研究引入了一种新的海水基石 (PG) 水泥,使用低度激活剂. 优化的混合物与地面颗粒高炉渣 (GGBS) 和飞灰 (FA) 显示出出色的强度和流动性,为可持续的海洋建筑材料铺平了道路.
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.
- 绿色化学 绿色化学
背景情况:
- 传统的活性水泥生产面临着高性激活剂和成本的挑战.
- 石膏 (PG) 和飞灰 (FA) 是工业副产品,有可能用于水泥材料.
- 海水提供了一个高度离子的环境,可以影响水泥的水化.
研究的目的:
- 为了开发一种基于海水的低性活性化 (PG) 水泥.
- 为了研究PG和FA对磨砂颗粒高炉渣 (GGBS) 基结合剂的性能的影响.
- 了解这些新型粘合剂系统中的水化机制和微观结构的发展.
主要方法:
- 在基于海水的泥中研究了用PG (0-15%) 和FA (20-50%) 取代GGBS的部分替代.
- 评估定位时间,质性质,微观结构和压力强度.
- 分析了化动力学和化产品的形成,如化 (AFt) 和C-(A) -S-H凝.
主要成果:
- 5%的PG和35%的FA的协同混合物实现了28天的压力强度超过60MPa,相当于纯GGBS.
- 这种新方法显著提高了流动性,改变了水化动力学.
- 海水离子促进了乙化核的形成,而低性激活剂则促进了C-(A) -S-H凝的形成.
结论:
- 海水离子和低性环境之间的协同作用提高了粘合剂的性能.
- 优化的水合通道和精细的孔隙结构有助于改善早期和晚期的强度.
- 这项研究为低碳,高效的PG在海洋工程材料中的利用提供了基础.
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