西北工程技术学报2026，Vol.25Issue(1)：52-57,6.DOI:10.26974/j.cnki.XBGC.2026.01.007
改性硫铝酸盐水泥砂浆力学性能分析
Experimental Study on the Mechanical Properties of Modified Sulphoaluminate Cement Mortar
摘要
Abstract
To enhance the mechanical properties of sulphoaluminate cement mortar for use as a repair material,modifications were made using polypropylene(PP)fibers,water glass and UEA expansion agents.An orthogonal experimental design was employed to investigate the effects of these three factors on the compressive strength and splitting tensile strength of the modified mortar.The results show that polypropylene fibers exert the most significant influence on both compressive and splitting tensile strengths,followed by the expansion agent,while water glass has has the least impact.The optimal mix for comprehensive mechanical performance is A3B1C3,corresponding to 0.3%.water glass,0.1%polypropylene fibers and 0.4%expansion agent.This optimal mix result in a 10.1%increase in the 28-day compressive strength and a 46%increase in the 1-day splitting tensile strength compared to the unmodified mortar specimens.关键词
硫铝酸盐水泥砂浆/聚丙烯(PP)纤维/水玻璃/UEA膨胀剂/正交试验Key words
sulphoaluminate cement mortar/polypropylene(PP)fibers/water glass/UEA expansion agent/orthogo-nal test分类
建筑与水利引用本文复制引用
马继树,杨淑雁..改性硫铝酸盐水泥砂浆力学性能分析[J].西北工程技术学报,2026,25(1):52-57,6.基金项目
宁夏自然科学基金重点项目(2025AAC020028) （2025AAC020028）
