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增强剂对粉煤灰-矿渣-水泥系统强度影响的研究
引用本文:廖玉云,吴笑梅,樊粤明,黄强伟.增强剂对粉煤灰-矿渣-水泥系统强度影响的研究[J].混凝土,2009(9).
作者姓名:廖玉云  吴笑梅  樊粤明  黄强伟
作者单位:1. 华南理工大学材料学院,广东,广州,510640
2. 华南理工大学材料学院,广东,广州,510640;华南理工大学特种功能材料及制备技术教育部重点实验室,广东,广州,510640
3. 广东省塔牌集团股份有限公司技术中心,广东,梅州,514000
摘    要:研究了增强剂A、C及两者复合组成的A+C对粉煤灰-矿渣-水泥系统强度的影响.结果表明:在粉煤灰和矿渣总掺量为50%、30%、10%的水泥系统中,A、C及A+C对3、28、60d胶砂强度均有明显提高,其中A对胶砂强度的提高幅度随着粉煤灰和矿渣总量的增大而增大,C对胶砂强度的增幅随着两者总量的减少而增大.同时A、C及A+C对C25混凝土3、7 d和28 d抗压强度均有7%~19%的提高作用.化学结合水分析结果表明:A、C、A+C使粉煤灰-矿渣-水泥系统各龄期水化速率增加,生成更多的水化产物.DTA-TG结果表明:增强剂促进了粉煤灰和矿渣对系统中Ca(OH)2的吸收.

关 键 词:增强剂  矿渣  粉煤灰  水泥  强度

Effect of reinforcing agent to the strength of fly ash-slag-portland cement system
LIAO Yu-yun,WU Xiao-mei,FAN Yue-ming,HUANG Qiang-wei.Effect of reinforcing agent to the strength of fly ash-slag-portland cement system[J].Concrete,2009(9).
Authors:LIAO Yu-yun  WU Xiao-mei  FAN Yue-ming  HUANG Qiang-wei
Affiliation:1a.College of Materials Science and Engineering;b.Key Laboratory of Specially Founctional Materials and Advanced Manufacturing Technology of Ministry of Education;South China University of Technology;Guangzhou 510640;China;2.Technology Center of Guangdong Tapai Group Co.;Ltd.;Meizhou 514000;China
Abstract:Effect of different reinforcing agent A,C and A+C to the strength of fly ash-slag-portland cement system were investigated.The results showed that when total amount of fly ash and slag was 50%,30% and 10%,A,C and A+C can significantly improve the system strength at 3,28,60 d ages,while range of A increased with the total amount of fly ash and slag increased,range of C increased with the total amount of fly ash and slag decreased;while A,C and A+C can improve the C25 concrete compressive strength by 7%~19% a...
Keywords:reinforcing agent  slag  fly ash  cement  strength  
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