摘要
水泥在许多方面的应用都要求能在数小时内快速凝固并且获得所需要的强度。本文研制高性价比、速凝、高强水泥已取得了进展,这种水泥的初凝时间为15 min,终凝时间为30 min,4 h的抗压强度(CCS)为12 MPa(最小值),8 h的抗压强度为24 MPa,一天的抗压强度为40 MPa,实验数据处理采用L9阵列的正交表,阵列中有三个因素,它们分别是普通硅酸盐水泥/高铝水泥/无水石膏、水泥的细度、添加剂的类型,这些因素分为三个层次。实验数据处理是通过应用Taguchi方差分析法(ATM)的软件包来进行,就凝固时间而言,水泥的细度和普通硅酸盐水泥/高铝水泥/无水石膏起着重要作用,添加剂的类型和普通硅酸盐水泥/高铝水泥/无水石膏是影响不同阶段冷抗压强度的重要因素。
Many applications demand a cement that sets fast and gains the required strength in a few hours.So,costeffective rapid-set high-strength cement has made developed.Its initial time is setted of 15 min,final setting time of 30 min,4 h compressive strength（CCS） of 12 MPa（minimum）,8 h CCS of 24 MPa and 1 day CCS of 40 MPa for the neat cement.The experiments were designed using orthogonal array technique in L9 array with three factors,namely OPC/high-alumina cement/anhydrous calcium sulphate,fineness of the cement,and type of additives,at three levels each.The response data were analysed using analysis of variance（ANOVA） technique with a software package,ANOVA by Taguchi Method（ATM）.In the case of setting time,fineness of the cement and OPC/HAC/anhydrous calcium sulphate ratio plays a significant role.Additive type and the OPC/HAC/anhydrous calcium sulphate are significant factors affecting the CCS at different ages.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2013年第5期992-997,共6页
Bulletin of the Chinese Ceramic Society
基金
2011年吉安市科技计划指导性项目
关键词
实验设计
抗压强度
混合添加剂
水泥净浆
砂浆
design of experiments
compressive strength
admixture
cement paste
mortar
