多壁羧基化碳纳米管改性水泥砂浆抗氯离子渗透性能研究

头部文案

发布时间：2020-01-06 00:00:00

全国建材科技期刊
全国中文核心期刊
中国科技论文统计源期刊
万方数据-数字化期刊群入网期刊
中国学术期刊（光盘版）全文收录期刊

华东地区优秀科技期刊
江苏省期刊方阵“双效期刊”
中国期刊网全文收录期刊
中国科技期刊数据库全文收录期刊



多壁羧基化碳纳米管改性水泥砂浆抗氯离子渗透性能研究

Study on Chloride Resistance of Cement Mortar Modified with Multi-walled Carboxylated Carbon Nanotubes

2022年第4期

多壁羧基碳纳米管；抗氯离子渗透性能；RCM法；微观结构；水泥砂浆

CNT-COOH; Chloride resistance; RCM method; Microstructure; Cement mortar

2022年第4期

10.19761/j.1000-4637.2022.04.010.04

中铁城建集团与盐城工学院合作项目[CJ01-FJ-YCDLDCCF-2020-（ZYFB）00026]。

段艳刚1，朱华2

1.中铁城建集团第一工程有限公司，山西太原 030024；2.盐城工学院土木建筑工程学院，江苏盐城 224051

段艳刚1，朱华2

段艳刚,朱华.多壁羧基化碳纳米管改性水泥砂浆抗氯离子渗透性能研究[J].混凝土与水泥制品,2022(4):10-13.

DUAN Y G,ZHU H.Study on Chloride Resistance of Cement Mortar Modified with Multi-walled Carboxylated Carbon Nanotubes[J].China Concrete and Cement Products,2022(4):10-13.

浏览量:

1000

摘要：研究了一种多壁羧基碳纳米管（CNT-COOH）对水泥砂浆抗氯离子渗透性能的影响。为了得到均匀的悬浮液，将CNT-COOH分散在蒸馏水中，再进行超声波处理。分别按水泥质量的0.01%、0.05%和0.10%的CNT-COOH进行配合设计，制备了水泥砂浆试件，并根据RCM法测定了氯离子扩散系数。结果表明：当CNT-COOH掺量从0.01%增加至0.05%，氯离子扩散深度和扩散系数均增加；但CNT-COOH掺量继续增加至0.10%时，氯离子扩散深度和扩散系数大幅下降。此外，压汞试验结果表明，当CNT-COOH掺量为0.10%时，CNT-COOH通过消除大孔和降低孔隙率细化了孔径，使得水泥砂浆的微观结构更加密实。 Abstract: The effect of multi-walled carbon nanotubes(CNT-COOH) on chloride resistance of cement mortar was studied. In order to obtain a uniform suspension, CNT-COOH was well-dispersed in distilled water and then treated by ultrasonic. The mix proportion of the cement mortar with 0.01%, 0.05% and 0.10% of the cement quality was design, and the chloride diffusion coefficient was determined by the RCM method. The results show that with the increase of CNT-COOH content from 0.05% to 0.05%, the diffusion depth and diffusion coefficient of chloride ion increase, and continuing to increase CNT-COOH content to 0.10%, the diffusion coefficient of chloride has dropped drastically. The results of MIP show that when the CNT-COOH content is 0.10%, CNT-COOH can refine the pore distribution by eliminating the large pore and reducing the porosity, which makes the microstructure of cement mortar compact.

英文名 : Study on Chloride Resistance of Cement Mortar Modified with Multi-walled Carboxylated Carbon Nanotubes

刊期 : 2022年第4期

关键词 : 多壁羧基碳纳米管；抗氯离子渗透性能；RCM法；微观结构；水泥砂浆

Key words : CNT-COOH; Chloride resistance; RCM method; Microstructure; Cement mortar

刊期 : 2022年第4期

DOI : 10.19761/j.1000-4637.2022.04.010.04

文章编号 :

基金项目 : 中铁城建集团与盐城工学院合作项目[CJ01-FJ-YCDLDCCF-2020-（ZYFB）00026]。

作者 : 段艳刚1，朱华2

单位 : 1.中铁城建集团第一工程有限公司，山西太原 030024；2.盐城工学院土木建筑工程学院，江苏盐城 224051

段艳刚1，朱华2

段艳刚,朱华.多壁羧基化碳纳米管改性水泥砂浆抗氯离子渗透性能研究[J].混凝土与水泥制品,2022(4):10-13.

DUAN Y G,ZHU H.Study on Chloride Resistance of Cement Mortar Modified with Multi-walled Carboxylated Carbon Nanotubes[J].China Concrete and Cement Products,2022(4):10-13.





摘要

参数

结论

参考文献

引用本文

Abstract: The effect of multi-walled carbon nanotubes(CNT-COOH) on chloride resistance of cement mortar was studied. In order to obtain a uniform suspension, CNT-COOH was well-dispersed in distilled water and then treated by ultrasonic. The mix proportion of the cement mortar with 0.01%, 0.05% and 0.10% of the cement quality was design, and the chloride diffusion coefficient was determined by the RCM method. The results show that with the increase of CNT-COOH content from 0.05% to 0.05%, the diffusion depth and diffusion coefficient of chloride ion increase, and continuing to increase CNT-COOH content to 0.10%, the diffusion coefficient of chloride has dropped drastically. The results of MIP show that when the CNT-COOH content is 0.10%, CNT-COOH can refine the pore distribution by eliminating the large pore and reducing the porosity, which makes the microstructure of cement mortar compact.

扫二维码用手机看

[1] 洪乃丰.混凝土中氯盐与钢筋腐蚀的几个相关问题[J].工业建筑,2003,33(11):39-42.
[2] 李云峰,孙静,韩米雪.碳纳米管增强水泥砂浆的力学性能研究[J].混凝土与水泥制品,2015(6):67-70.
[3] 刘洋洋,孙敏,冯芳,等.改性碳纳米管的掺入对混凝土力学性能的影响[J].混凝土与水泥制品,2018(2):26-30.
[4] 欧阳辉玄,王燕锋,赵晓华.工业级碳纳米管增强水泥基材料力学性能试验研究[J].混凝土与水泥制品,2018(8):10-14.
[5] 李云峰,孙章平,孙静,等.碳纳米管水泥基复合材料机敏性能研究[J].混凝土与水泥制品,2016(3):7-12.
[6] 肖凯.碳纳米管水泥基复合材料梁弯拉徐变试验研究[D].温州:温州大学,2019.
[7] 朱奎胜,许卫华.碳纳米管增强水泥材料抗折性能研究[J].科技经济市场,2019(10):13-15.
[8] 黎恒杆,王玉林,林丹萍,等.多壁碳纳米管的分散效果对水泥净浆电学和力学性能的影响研究[J].工业建筑,2019,49(10):146-150.
[9] 周小平,夏江,冉旭.多壁碳纳米管改性水泥基复合材料的性能研究[J].应用化工,2019,48(10):2284-2288.
[10] 李庚英,王培铭.碳纳米管-水泥基复合材料的力学性能和微观结构[J].硅酸盐学报,2005,33(1):105-108.
[11] 王小凡,余天琦,陈正,等.一种多壁羧基化碳纳米管改性水泥砂浆的抗压强度研究[J].混凝土,2021(8):110-112,121.
[12] WANG B M,HAN Y,PAN B F,et al.Mechanical and Morphological Properties of Highly Dispersed Carbon Nanotubes Reinforced Cement Based Materials[J].Journal of Wuhan University of Technology,2013,28(1):82-87.
[13] LU L,OUYANG D,XU W.Mechanical Properties and Durability of Ultra High Strength Concrete Incorporating Multi-walled Carbon Nanotubes[J].Materials,2016,9(6):419.
[14] 黎恒杆,苏晴微,林姝彦,等.多壁碳纳米管在水泥基材料中的分散性及其影响[J].新乡学院学报,2019,36(6):24-29.
[15] KONSTAGDOUTOS M S,METAXA Z S,SHAH S P.Highly Dispersed Carbon Nanotube Reinforced Cement Based Materials[J].Cement and Concrete Research,2010,40:1052-1059.
[16] MARTIN C A,SANDLER J K W,WINDLE A H,et al. Electric Field-induced Aligned Multi-wall Carbon Nanotube Networks in Epoxy Composites[J].Polymers,2005,46(3):877-886.
[17] LI G Y,WANG P M,ZHAO X H.Mechanical Behavior and Microstructure of Cement Composites Incorporating Surface-treated Multi-walled Carbon Nanotubes[J].Carbon,2005,43(6):1239-1245.
[18] MUDIMELA P R,NASIBULINA L I,NASIBULINA A G,et al.Synthesis of Carbon Nanotubes and Nanofibers on Silica and Cement Matrix Materials[J].Journal of Nanomaterials,2009:012040.
[19] 中华人民共和国住房和城乡建设.普通混凝土长期性能和耐久性能试验方法标准:GB/T 50082—2009[S].北京:中国建筑工业出版社,2009.
[20] MINDESS S,YOUNG J F,DARWIN D.Concrete[M].second edition.New Jersey:Prentice Hall,2002.
[21] LI Q H,LIU J T,XU S L,et al.Progress in Research on Carbon Nanotubes Reinforced Cementitious Composites[J].Advanced engineering materials,2015(4):1-16.

上一个

海洋环境下海水海砂水泥砂浆抗压强度的时变规律

下一个

页岩陶粒混凝土的制备与保温性能研究

头部文案

多壁羧基化碳纳米管改性水泥砂浆抗氯离子渗透性能研究

相关文件