外加剂复掺对水泥基灌浆料性能的影响  

Influence of admixture compounding on the properties of cement-based grouting materials

作　　者：安亚强[1] 武强[1] 马梦娜[1] 肖青战[1] 张伟 AN Yaqiang;WU Qiang;MA Mengna;XIAO Qingzhan;ZHANG Wei(Shaanxi Polytechnic Institute,Xianyang 712000,China;Zhejiang Huadong Engineering Consulting Co.,Ltd.,Hangzhou 310000,China)

机构地区：[1]陕西工业职业技术学院,陕西咸阳712000 [2]浙江华东工程咨询有限公司,浙江杭州310000

出　　处：《混凝土与水泥制品》2025年第3期18-21,27,共5页China Concrete and Cement Products

基　　金：陕西工业职业技术学院校级自然科学研究项目(2023YKYB-024)。

摘　　要：为了解决边坡施工和水库除险加固过程中的漏浆、塌孔等问题,研究了速凝剂、早强剂、膨胀剂、减水剂复掺对水泥基灌浆料的工作性和强度的影响。结果表明:速凝剂和减水剂掺量是影响灌浆料凝结时间的主要因素,推荐速凝剂掺量为1.5%,减水剂掺量为4.0%~5.0%;速凝剂和早强剂掺量对灌浆料流动性的影响比较显著,推荐速凝剂掺量为1.0%~1.5%,早强剂掺量为3.5%~4.0%;减水剂和膨胀剂掺量对灌浆料28 d抗压强度的影响比较显著,推荐减水剂掺量为3.0%,膨胀剂掺量可取4.0%。In order to solve the problems of grout leakage and hole collapse during slope construction and reservoir reinforcement,the effects of accelerator,early strength agent,expansion agent,and water reducing agent on the workability and strength of cement-based grouting materials were studied.The results show that the content of accelerator and water reducing agent are the main factors affecting the setting time of grouting materials.The recommended content of accelerator and water reducing agent is 1.5%and 4.0%~5.0%.The effects of the content of accelerator and early strength agent on the fluidity of grouting materials are significant.It is recommended that the content of accelerator is 1.0%~1.5%,and the content of early strength agent is 3.5%~4.0%.The content of water reducing agent and expansion agent has significant influence on the 28 d compressive strength of grouting materials.The recommended content of water reducing agent is 3.0%,and the content of expansion agent is 4.0%.

关 键 词：早强剂 减水剂 MARSH筒法 速凝剂 膨胀剂 

分 类 号：TU525[建筑科学—建筑技术科学]