期刊
CASE STUDIES IN CONSTRUCTION MATERIALS
卷 16, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.cscm.2022.e01127
关键词
Metakaolin; Activator to solid ratio; Basic properties; Microscopic
资金
- Hubei Provincial Education Commission Scientific Research Fund [B2020064]
- Science and Technology Project of Hubei Provincial Department of Transportation in 2019,Fund of Yangtze Academy of Sciences [CKWV2019754/KY]
- Ministry of Education Key Laboratory for Green Preparation and Application of Functional Materials (Hubei University, Wuhan China)
The aim of this paper is to investigate the effects of different activator-to-solid ratios on the performance of metakaolin geopolymer and to study its microstructural mechanisms using SEM and FT-IR. The experimental results showed that higher activator-to-solid ratios improved fluidity, consistency, and setting time, and reduced water consumption. SEM and FT-IR tests revealed that increasing the activator-to-solid ratio improved the polyaluminum silicate structure, while excessive sodium silicate reduced strength.
The aim of this paper is to investigate the effects of different activator -to-solid ratios on water consumption, setting time, fluidity, adhesion properties, bulk density and mechanical properties at standard consistency. The microstructural mechanisms of metakaolin geopolymer were also investigated by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR). The experimental results showed that for the different activator to solid ratios and mix designs used in this paper, higher ratios enhanced the fluidity, consistency, and setting time. Besides, the standard consistency water consumption of the metakaolin polymer mortar was reduced. SEM and FT-IR tests revealed macroscopic phenomena where the polyaluminum silicate structure improved with increasing activator -to-solids ratios. Excessive sodium silicate reduced strength, thus affecting mechanical properties.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据