矿物掺合料对流态固化土物理力学性能的影响研究
Influence of Mineral Admixtures on the Physical and Mechanical Properties of Fluid-solidified Soil
余保英 1刘彩霞 2王福涛 1熊明非 1周晋筑 3王学朋3
作者信息
- 1. 中建西部建设建材科学研究院有限公司,四川 成都 610000
- 2. 珠海市斗门区建设工程质量监督检测站,广东 珠海 519000
- 3. 中建铁路投资建设集团有限公司,北京 102600
- 折叠
摘要
文中研究了矿物掺合料对流态固化土物理力学性能的影响.结果表明,随着水泥用量的增加,各龄期强度明显增加.这是由于水泥作为固化剂决定了固化土的水化产物的形成数量和形成速率;适量矿粉掺入使得固化土水化过程生成更多硅铝质胶结产物,粉煤灰填充土体孔隙,减小孔隙率,颗粒间连接更紧密,固化土整体性更佳.
Abstract
This article investigates the influence of mineral admixtures on the physical and mechanical properties of convection-solidified soil.The results show that with the increase of cement content,the strength of fluid solidified soil increases obviously at each age.This is because when cement is used as curing agent,it determines the number and formation rate of hydration products of solidified soil.The incorporation of appropriate amount of mineral powder makes the hydration process of the solidified soil produce more silicon-aluminum cementation products,and the fly ash can fill the pores of the soil,reduce the porosity,connect the particles more closely,which improve the integrity of the solidi-fied soil.
关键词
流态固化土/矿物掺合料/力学性能/微观形貌Key words
Fluid-solidified soil/Mineral admixtures/Mechanical properties/Microscopic morphology引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据