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[1]徐杰,叶燕华,包文星.水泥净浆凝结时间和电阻率的关系[J].南京工业大学学报(自然科学版),2013,35(03):112-116.[doi:10.3969/j.issn.1671-7627.2013.03.023]
 XU Jie,YE Yanhua,BAO Wenxing.Relationship between cement paste setting time and resistance[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2013,35(03):112-116.[doi:10.3969/j.issn.1671-7627.2013.03.023]
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水泥净浆凝结时间和电阻率的关系()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
35
期数:
2013年03期
页码:
112-116
栏目:
出版日期:
2013-05-20

文章信息/Info

Title:
Relationship between cement paste setting time and resistance
文章编号:
1671-7627(2013)03-0112-05
作者:
徐杰叶燕华包文星
南京工业大学 土木工程学院,江苏 南京 210009
Author(s):
XU JieYE YanhuaBAO Wenxing
College of Civil Engineering,Nanjing University of Technology,Nanjing 210009,China
关键词:
水泥外加剂 聚羧酸 木质素磺酸钙 电阻率特征曲线 凝结时间 线性关系
Keywords:
cement admixture polycarboxylate calcium lignosulphonate resistivity characteristic curve setting time linear relationship
分类号:
TU528
DOI:
10.3969/j.issn.1671-7627.2013.03.023
文献标志码:
A
摘要:
以硅酸盐水泥为基体,添加木质素磺酸钙和聚羧酸外加减水剂,采用非接触式电阻率测试方法,描述水泥基材料早期水化历程。结果表明:相同水灰比下,减水剂掺量越大,凝结时间越长,电阻率特征曲线向后平移; 水泥初凝时间和终凝时间分别与电阻率特征曲线上的凝结时间起始点和拐点存在线性关系。
Abstract:
Calcium lignosulphonate and polycarboxylate as admixtures were added in the portland cement matrix.Non-contact resistivity testing methods were adopted and the early hydration process of the cement-based materials was described.The results showed that the more the amount of water reducer,the longer the setting time,and resistivity characteristic curves would be moved backward under the same water-cement ratio condition.There was a linear relationship between the initial setting time of cement and the starting point of condensation setting time of resistivity characteristic curves.Meanwhile,the same relationship also existed between the final setting time and the inflection point.

参考文献/References:

[1] 魏小胜,肖莲珍,李宗津.采用电阻率方法研究水泥水化过程[J].硅酸盐学报,2004,32(1):34-38.
[2] Li Zongjin,Li Wenlai.Contactless,transformer-based measurement of the resistivity of materials:US,6639401[P].2003-10-28.
[3] Meredith P,Donald A M,Luke K.Pre-induction and induction hydration of tricalciun silicate:an environmental scanning electron microscopy syudy[J].J Mater Sci,1995,39:1921-1930.
[4] 韩利华,张学丽,封孝信,等.聚羧酸系高效减水剂的研究进展及发展现状[J].混凝土,2008(2):96-98.
[5] 毛建,王钧,杨小利,等.聚羧酸系高性能减水剂研究现状与发展[J].国外建材科技,2005(1):4-6.
[6] 同济大学,东南大学.土木工程材料[M].北京:中国建筑工业出版社,2002.
[7] 中国建筑科学研究院.GB/T 1346—2001水泥标准稠度用水量、凝结时间、安定性检验方法[S].北京:中国建筑工业出版社,2001.
[8] 叶群山.矿物外加剂早期水化过程中的物理和化学效应[D].湖北:武汉大学,2005.

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[1]姚晓,兰祥辉,邓敏,等.油井水泥多功能防窜剂的研究及应用[J].南京工业大学学报(自然科学版),2002,24(06):11.[doi:10.3969/j.issn.1671-7627.2002.06.003]

备注/Memo

备注/Memo:
收稿日期:2012-05-09
作者简介:徐杰(1986—),男,江苏宜兴人,硕士,主要研究方向为高性能混凝土; 叶燕华(联系人),教授,E-mail:yyh_5610@163.com..
更新日期/Last Update: 2013-05-31