长春工程学院学报（自然科学版）2025，Vol.26Issue(1)：12-18,7.DOI:10.3969/j.issn.1009-8984.2025.01.003
改性低碱性水泥基注浆材料性能研究
Study on the Performance of Modified Low Alkali Cementitious Grouting Materials
摘要
Abstract
In view of the problems of long setting time,easy dispersion of cement slurry and high pH value of mine drainage faced in curtain grouting in mines,starting from the method of reducing alkali in cement,a modified low-alkaline cement-based grouting material is developed based on ordinary portland cement by adding chemical additives such as aluminum sulfate,polyaluminum chloride and sodium lignosulfonate.The influence of chemical additives on pH value,rheological properties,coagulability and compressive strength of cement slurry is studied through single factor experiment method.SEM and XRD are used to analyze the alkali reduction mechanism of chemical additives on cement slurry.The results are indicated that all three chemical additives have an impact on the hydration products,and can adjust the morphology,reaction rate,and generation amount of hydration products,thereby achieving changes in macroscopic properties.关键词
帷幕注浆/水泥基浆液/降碱/化学外加剂/pHKey words
curtain grouting/cement-based grout/alkalinity reducion/chemical additives/pH分类
土木建筑引用本文复制引用
于通,张佳兴,周立宏,裴向军,袁锐,薛晓峰,章爱卫..改性低碱性水泥基注浆材料性能研究[J].长春工程学院学报（自然科学版）,2025,26(1):12-18,7.基金项目
国家自然科学基金(42207231)四川省自然科学基金(2025ZNSFSC1189) （42207231）
