[1]李东,朱月圆,耿健,等.矿物掺合料和CLDH对水泥基材料氯离子固化性能研究[J].西安建筑科技大学学报(自然科学版),2019,51(03):344-349.[doi:10.15986/j.1006-7930.2019.03.006]
　LI Dong,ZHU Yueyuan,GENG Jian,et al.A study on curing charateristics of chloride ions binding in cement based materials with mineral admixture and CLDH[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2019,51(03):344-349.[doi:10.15986/j.1006-7930.2019.03.006]
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矿物掺合料和CLDH对水泥基材料氯离子固化性能研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
51
期数:
2019年03期
页码:
344-349
栏目:
出版日期:
2019-06-30

文章信息/Info

Title:
A study on curing charateristics of chloride ions binding in cement based materials with mineral admixture and CLDH
文章编号:
1006-7930(2019)03-0344-06
作者:
李东1; 朱月圆1; 耿健2; 孙家瑛1; 2; 李鹏鹏1
(1.上海大学 土木工程系，上海 200444;2.浙江大学 宁波理工学院，浙江 宁波 315100)
Author(s):
LI Dong1; ZHU Yueyuan1; GENG Jian2; SUN Jiaying1; 2;  LI Pengpeng1
(1.Department of Civil Engineering, Shanghai University, Shanghai 200444,China; 2.Ningbo Institute of Technology, Zhejiang University, Zhejiang Ningbo 315100,China)
关键词:
粉煤灰; 矿渣; CLDH; 氯离子固化
Keywords:
fly ash;  slag; CLDH; chloride binding
分类号:
TU503
DOI:
10.15986/j.1006-7930.2019.03.006
文献标志码:
A
摘要:
采用等温吸附平衡方法，研究了单掺和复掺粉煤灰、矿渣和焙烧层状双金属氢氧化物（CLDH）对水泥基材料氯离子固化性能的影响，并借助XRD对影响机理进行分析.结果表明：单掺范围为15%～45%情况下，随着粉煤灰和矿粉掺量增加，水泥基固化氯离子的量先增大后减小，当粉煤灰和矿粉的掺量在30%时，其固化氯离子的能力较好且都优于纯水泥对氯离子的固化效果；水泥基材料氯离子固化量随着CLDH掺量的增加而增加；但是粉煤灰和矿渣依次与CLDH复掺，复掺效果不佳，其复掺效果不如单掺粉煤灰或矿渣对氯离子的固化效果好.研究成果对以后复掺技术在海工混凝土中的有效、合理使用提供相应的参考.
Abstract:
In this paper,The effects of single admixture and remixed fly ash, slag and calcined double metal hydride (CLDH) on the properties of chloride ion curing of cement based materials were researched after 28 days by use of equilibrium experiment. Then, the effect mechanism was analyzed by XRD,and the results shown that, with the addition of fly ash and mineral powder, the amount of the solidified chloride ions increased first and then decreased with the addition of fly ash and mineral powder. When the fly ash and mineral powder were added to 30%, the solidification of chloride ions was better and better than that of pure cement for the curing effect of chlorine ions. The chloride ion solidification volume of cement based materials increased with the increase of CLDH content. But the fly ash and slag are mixed with CLDH in turn, and the mixed results are not very good, and the effect of the compound effect is not as good as the curing effect of a single fly ash or slag on chloride ions.The research results provide relevant reference for the effective and rational use of the recombination technology in marine concrete.

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备注/Memo

备注/Memo:
收稿日期:2018-03-12修改稿日期:2019-04-29
基金项目:国家自然科学基金项目（51778578）；浙江省自然科学基金项目（Y17E080072）
第一作者:李东 (1963-)，男，博士，副教授.主要从事混凝土耐久性研究. E-mail:lidongbibo@163.com
通信作者:朱月圆（1994-），男，硕士研究生.主要从事混凝土耐久性研究. E-mail:18817620751@163.com
更新日期/Last Update: 2019-07-21