内掺氯离子与硫酸根离子在水泥净浆中的交互作用
|
摘要
模拟南海海水中阴离子浓度,采用氯离子、氯离子与硫酸根离子复合盐溶液分别作为拌合水制备水泥净浆,通过XRD定量分析、SEM及离子滴定等测试方法对不同标养龄期的水泥净浆进行微观分析,研究内掺氯离子和硫酸根离子在水泥净浆中的交互作用。结果表明,在内掺氯离子条件下,含氯离子的盐溶液作为拌合水拌合水泥净浆迅速生成Friedel盐(FS);氯离子的存在有抑制钙矾石(Ettringite,AFt)生成的作用;当氯离子浓度为3. 5%(质量分数)、硫酸根离子浓度为0. 5%(质量分数)时,硫酸根离子的引入促进了AFt向FS转化,提高化学结合氯离子的量;水化早期化学结合即氯离子参与反应形成FS占主导,硫酸根离子起到辅助作用;水化后期物理吸附即C-S-H凝胶对离子的吸附作用增强,对化学结合氯离子有一定的抑制作用。
In order to investigate the interaction of chloride ion and sulfate ion in the cement paste at different curing time,cement paste using the salt solution mixed with chloride ion and sulfate ion,simulating the concentration of anions in the sea water in the South China Sea,as mixing water was micro-analyzed by the test methods such as XRD quantitative analysis,SEM and ion titration test methods. Under the condition of chloride ion doped,the results show that: the cement paste mixed with the salt solution of chloride ion as mixing water produced FS immediately. The existence of chloride ions can take the effect of restraining the generation of ettringite. In the condition of the experiment concentration,lea-ding the sulfate ion promoted the conversion from AFt to FS and increased the amount of chemically bound chloride ion. Chemical bonding that the participation of chloride ions formed by reaction of FS dominates an important role and sulfate ions played a supporting role at the early hydration. At the later stage of hydration,the adsorption of C-S-H gel to ions which was called physical adsorption,having inhibitory effects on the chemical binding of chloride ion.
In order to investigate the interaction of chloride ion and sulfate ion in the cement paste at different curing time,cement paste using the salt solution mixed with chloride ion and sulfate ion,simulating the concentration of anions in the sea water in the South China Sea,as mixing water was micro-analyzed by the test methods such as XRD quantitative analysis,SEM and ion titration test methods. Under the condition of chloride ion doped,the results show that: the cement paste mixed with the salt solution of chloride ion as mixing water produced FS immediately. The existence of chloride ions can take the effect of restraining the generation of ettringite. In the condition of the experiment concentration,lea-ding the sulfate ion promoted the conversion from AFt to FS and increased the amount of chemically bound chloride ion. Chemical bonding that the participation of chloride ions formed by reaction of FS dominates an important role and sulfate ions played a supporting role at the early hydration. At the later stage of hydration,the adsorption of C-S-H gel to ions which was called physical adsorption,having inhibitory effects on the chemical binding of chloride ion.
引文
1 Weerdt K D,Justnes H.Cement and Concrete Composites,2015,55,215.
2 Santhanam M,Cohen M,Olek J.Cement and Concrete Research,2006,36(12),2132.
3 Weerdt K D,Justnes H,Geiker M R.Cement and Concrete Composites,2013,47(3),53.
4 Liu Jiaping,Liu Yujing,Shi Liang,et al.Journal of Building Materials,2016(6),993(in Chinese).刘加平,刘玉静,石亮,等.建筑材料学报,2016(6),993.
5 Jin Z,Wei S,Zhang Y,et al.Cement and Concrete Research,2007,37(8),1223.
6 Jin Zuquan,Sun Wei,Zhang Yunsheng,et al.Journal of the Chinese Ceramic Society,2006,34(5),630(in Chinese).金祖权,孙伟,张云升,等.硅酸盐学报,2006,34(5),630.
7 Jiang Meifen,Lv Xianjun.Bulletin of the Chinese Ceramic Society,2014,33(10),2527(in Chinese).姜梅芬,吕宪俊.硅酸盐通报,2014,33(10),2527.
8 Li Qinfei.Effects of inorganic salt admixtures on microstructure of hydrated C3S and C3A in cement.Ph.D.Thesis,Harbin Institute of Technology,China,2016(in Chinese).李琴飞.无机盐外加剂对水泥C3S和C3A水化产物微观结构影响的研究.博士学位论文,哈尔滨工业大学,2016.
9 Thomas J J,Allen A J,Jennings H M.The Journal of Physical Chemistry,2015,113(46),19836.
10 Li Q,Ge Y,Geng G,et al.Journal of Nanomaterials,2015,16(1),412.
11 Shanahan N,Sedaghat A,Zayed A.Cement and Concrete Composites,2016,73,226.
12 Wang Xiaogang,Shi Caijun,He Fuqiang,et al.Journal of the Chinese Ceramic Society,2013,41(5),187(in Chinese).王小刚,史才军,何富强,等.硅酸盐学报,2013,41(5),187.
13 Xu J,Song Y,Jiang L,et al.Construction and Building Materials,2016,104,9.
14 Florea M V A,Brouwers H J H.Construction and Building Materials,2014,64(30),421.
15 Zhu Q,Jiang L,Chen Y,et al.Construction and Building Materials,2012,37(37),512.
16 De Weerdt K,OrsákováD,Geiker M.Cement and Concrete Research,2014,65,30.
17 Talero R,Trusilewicz L,Delgado A,et al.Construction&Building Materials,2011,25(5),2370.
18 Talero R,Trusilewicz L.Industrial and Engineering Chemistry Research,2012,51(38),12517.
19 Pang X,Boul P,Jimenez W C.Construction and Building Materials,2015,77(77),260.
20 Qian Jueshi,Wei Yingchun,Deng Linxi,et al.Journal of the Chinese Ceramic Society,2014,42(2),169(in Chinese).钱觉时,韦迎春,邓铃夕,等.硅酸盐学报,2014,42(2),169.
21 Sun Huaqiang,Qian Jueshi,Yang Sha,et al.Journal of the Chinese Ceramic Society,2017,45(5),690(in Chinese).孙化强,钱觉时,杨莎,等.硅酸盐学报,2017,45(5),690.
22 Mota B,Matschei T,Scrivener K.Cement and Concrete Research,2015,75,53.
23 Maes M,Mittermayr F,Belie N D.Materials and Structures,2017,50(2),153.
24 Geng Jian,Yang Haiming,Mo Liwei.Journal of Building Materials,2015,18(6),919(in Chinese).耿健,杨海明,莫利伟.建筑材料学报,2015,18(6),919.
25 Geng J,Easterbrook D,Li L Y,et al.Cement and Concrete Research,2015,68,211.
26 Li Hua,Sun Wei,Liu Jiaping.Concrete,2013(1),1(in Chinese).李华,孙伟,刘加平.混凝土,2013(1),1.
27 Delagrave Anik,Marchand Jacques,Olliver Jean-Pierre,et al.Advanced Cement Based Materials,1997,6(1),28.
28 Harald Justnes.Nordic Concrete Research,1998,21,1.
29 Hewlett P.Lea’s chemistry of cement and concrete,Butterworth-Heinemann,U.K.2004.
30 Ramachandran V S.Matériaux Et Construction,1971,4(1),3.
2 Santhanam M,Cohen M,Olek J.Cement and Concrete Research,2006,36(12),2132.
3 Weerdt K D,Justnes H,Geiker M R.Cement and Concrete Composites,2013,47(3),53.
4 Liu Jiaping,Liu Yujing,Shi Liang,et al.Journal of Building Materials,2016(6),993(in Chinese).刘加平,刘玉静,石亮,等.建筑材料学报,2016(6),993.
5 Jin Z,Wei S,Zhang Y,et al.Cement and Concrete Research,2007,37(8),1223.
6 Jin Zuquan,Sun Wei,Zhang Yunsheng,et al.Journal of the Chinese Ceramic Society,2006,34(5),630(in Chinese).金祖权,孙伟,张云升,等.硅酸盐学报,2006,34(5),630.
7 Jiang Meifen,Lv Xianjun.Bulletin of the Chinese Ceramic Society,2014,33(10),2527(in Chinese).姜梅芬,吕宪俊.硅酸盐通报,2014,33(10),2527.
8 Li Qinfei.Effects of inorganic salt admixtures on microstructure of hydrated C3S and C3A in cement.Ph.D.Thesis,Harbin Institute of Technology,China,2016(in Chinese).李琴飞.无机盐外加剂对水泥C3S和C3A水化产物微观结构影响的研究.博士学位论文,哈尔滨工业大学,2016.
9 Thomas J J,Allen A J,Jennings H M.The Journal of Physical Chemistry,2015,113(46),19836.
10 Li Q,Ge Y,Geng G,et al.Journal of Nanomaterials,2015,16(1),412.
11 Shanahan N,Sedaghat A,Zayed A.Cement and Concrete Composites,2016,73,226.
12 Wang Xiaogang,Shi Caijun,He Fuqiang,et al.Journal of the Chinese Ceramic Society,2013,41(5),187(in Chinese).王小刚,史才军,何富强,等.硅酸盐学报,2013,41(5),187.
13 Xu J,Song Y,Jiang L,et al.Construction and Building Materials,2016,104,9.
14 Florea M V A,Brouwers H J H.Construction and Building Materials,2014,64(30),421.
15 Zhu Q,Jiang L,Chen Y,et al.Construction and Building Materials,2012,37(37),512.
16 De Weerdt K,OrsákováD,Geiker M.Cement and Concrete Research,2014,65,30.
17 Talero R,Trusilewicz L,Delgado A,et al.Construction&Building Materials,2011,25(5),2370.
18 Talero R,Trusilewicz L.Industrial and Engineering Chemistry Research,2012,51(38),12517.
19 Pang X,Boul P,Jimenez W C.Construction and Building Materials,2015,77(77),260.
20 Qian Jueshi,Wei Yingchun,Deng Linxi,et al.Journal of the Chinese Ceramic Society,2014,42(2),169(in Chinese).钱觉时,韦迎春,邓铃夕,等.硅酸盐学报,2014,42(2),169.
21 Sun Huaqiang,Qian Jueshi,Yang Sha,et al.Journal of the Chinese Ceramic Society,2017,45(5),690(in Chinese).孙化强,钱觉时,杨莎,等.硅酸盐学报,2017,45(5),690.
22 Mota B,Matschei T,Scrivener K.Cement and Concrete Research,2015,75,53.
23 Maes M,Mittermayr F,Belie N D.Materials and Structures,2017,50(2),153.
24 Geng Jian,Yang Haiming,Mo Liwei.Journal of Building Materials,2015,18(6),919(in Chinese).耿健,杨海明,莫利伟.建筑材料学报,2015,18(6),919.
25 Geng J,Easterbrook D,Li L Y,et al.Cement and Concrete Research,2015,68,211.
26 Li Hua,Sun Wei,Liu Jiaping.Concrete,2013(1),1(in Chinese).李华,孙伟,刘加平.混凝土,2013(1),1.
27 Delagrave Anik,Marchand Jacques,Olliver Jean-Pierre,et al.Advanced Cement Based Materials,1997,6(1),28.
28 Harald Justnes.Nordic Concrete Research,1998,21,1.
29 Hewlett P.Lea’s chemistry of cement and concrete,Butterworth-Heinemann,U.K.2004.
30 Ramachandran V S.Matériaux Et Construction,1971,4(1),3.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |