建筑缝隙用无收缩浆料的制备与性能研究  

Preparation and Performance Study of Non-shrinkage Grout for Building Gaps Construction

作　　者：郑靓婧[1] 庞俊勇[1] 翟华峰 ZHENG Liangjing;PANG Junyong;ZHAI Huafeng(School of Architecture,Xianning Vocational Technical College,Xianning 437000,China;Hubei Sangu Building Materials Technology Co.,Ltd.,Xianning 437000,China)

机构地区：[1]咸宁职业技术学院建筑学院,湖北咸宁437000 [2]湖北三固建材科技有限公司,湖北咸宁437000

出　　处：《太原学院学报（自然科学版）》2024年第4期8-13,共6页Journal of TaiYuan University:Natural Science Edition

基　　金：湖北省中华职教社项目(HBZJ2023150)。

摘　　要：以硅酸盐水泥、粉煤灰、矿粉以及其他外加剂制备高性能无收缩压浆料,利用单因素分析方法筛选出合适的配比配置压浆料和搅拌方式,并通过流动性能、力学性能、膨胀性能和泌水特性等指标验证最佳配比的合理性。结果表明:压浆料的最优配比为水泥450 g、矿粉350 g、粉煤灰200 g、水280 g、消泡剂0.8 g、膨胀剂0.5 g和减水剂3.1 g;搅拌方式为采用星式胶沙搅拌机慢速(800 r/min)搅拌5 min(加水50%),快速搅拌(2500 r/min)搅拌5 min(加水50%)。该制备方法的压浆料的各项性能都能满足工况指标的要求并且降低制备成本。Portland cement,coal ash,mineral powder and other additives were used to prepare high-performance non-shrinkage grout.The single factor analysis method was used to screen out suitable ratios of grouting materials and mixing methods,and the rationality of the optimal ratio was verified through indicators such as flow performance,mechanical performance,expansion performance,and bleeding characteristics.The results showed that the optimal ratio of grouting material was 450 g cement,350 g mineral powder,200 g fly ash,280 g water,0.8 g defoamer,0.5 g expansion agent,and 3.1 g water reducer.The mixing method is to use a star-shaped rubber sand mixer to stir at a slow speed(800 r/min)for 5 minutes(with 50%water added)and a fast speed(2500 r/min)for 5 minutes(with 50%water added).The various properties of the grouting material prepared with this method can meet the requirements of the operating conditions and reduce the preparation costs.

关 键 词：高性能 无收缩 压浆料 优化 

分 类 号：TU746.3[建筑科学—建筑技术科学]