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[1]马兵,沈晓冬.外加剂对贝利特-硫铝酸盐水泥凝结时间及水化的影响[J].南京工业大学学报(自然科学版),2015,37(05):12-18.[doi:10.3969/j.issn.1671-7627.2015.05.003]
 MA Bing,SHEN Xiaodong.Effects of several chemical additive on the setting time and hydration of belite-sulfoaluminate cement[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2015,37(05):12-18.[doi:10.3969/j.issn.1671-7627.2015.05.003]
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外加剂对贝利特-硫铝酸盐水泥凝结时间及水化的影响()
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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:
37
期数:
2015年05期
页码:
12-18
栏目:
出版日期:
2015-09-10

文章信息/Info

Title:
Effects of several chemical additive on the setting time and hydration of belite-sulfoaluminate cement
文章编号:
1671-7627(2015)05-0012-07
作者:
马兵沈晓冬
南京工业大学 材料科学与工程学院 材料化学工程国家重点实验室,江苏 南京 210009
Author(s):
MA BingSHEN Xiaodong
State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
贝利特 化学外加剂 凝结时间
Keywords:
belite chemical additive setting time
分类号:
TQ172
DOI:
10.3969/j.issn.1671-7627.2015.05.003
文献标志码:
A
摘要:
研究三乙醇胺(TEA)、三异丙醇胺(TIPA)与聚羧酸对贝利特-硫铝酸盐水泥凝结时间及水化的影响。通过对其凝结时间、力学性能、水化产物、孔径分布的表征确定最佳的外加剂种类和数量。结果表明:3种外加剂对水泥有不同程度的缓凝效果,其中聚羧酸缓凝效果最为显著。聚羧酸掺量达0.075%时,初凝与终凝时间分别可延至126 和182 min; 同时聚羧酸的加入降低了1与3 d强度,提高了28 d强度。水泥强度除与水化产物的种类、含量有关外,还与水泥浆体中孔径分布有关。
Abstract:
Effects of triethanolamine(TEA),triisopropanolamine(TIPA)and polycarboxylate superplasticizer on the setting time and hydration of belite-sulfoaluminate cement were investigated.The best type and quantity of admixture was determined by the characterization of setting time,mechanical properties,hydration products,and pore size distribution.Results indicated that three kinds of admixture had different effects on the setting time,and polycarboxylate superplasticizer had the best retarding effect.In the presence of 0.075% polycarboxylate superplasticizer,the initial time and final setting time were 126 and 182 min,respectively.The effects of the superplasticizer on the strength development at different hydration stages presented different results,observed by a decreased strength at early stage(1 d and 3 d)and increased strength at 28 d.It was also showed that the strength of cement was related to the type and quantity of admixture and the pore size distribution.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-04-18
基金项目:国家重点基础研究发展计划(973计划)(2009CB623100); 长江学者和创新团队发展计划(IRT1146); 江苏高校优势学科建设工程
作者简介:马兵(1985—),男,江苏淮安人,博士生,主要研究方向为贝利特-硫铝酸盐水泥; 沈晓冬(联系人),教授,E-mail:xdshen@njtech.edu.cn.
引用本文:马兵,沈晓冬.外加剂对贝利特-硫铝酸盐水泥凝结时间及水化的影响[J].南京工业大学学报:自然科学版,2015,37(5):12-18..
更新日期/Last Update: 2015-09-20