Application of Carbon Nanotubes in Ultra-Fine Cement Grouts

Abstract

Abstract: To improve the performance of ultra-fine cement grouts (UFCG), multi-walled carbon nanotubes (MWCNTs) were added into UFCG. The effects of MWCNTs on the strength and grouting properties of UFCG, as well as the bond effect after MWCNTs being added and poured into concrete gap were tested. The results show that the optimum content of MWCNTs (10~20 nm) in UFCG is 0.10% (mass fraction). At this time, compared with blank group, the 56 d flexural strength, compressive strength, and their ratio of UFCG increase by 24.3%, 23.4% and 7.1%, respectively. With the increase of MWCNTs content, the fluidity of UFCG decreases, the viscosity and grouting pressure increase. It means that the grouting property decreases gradually. When the MWCNTs content is no more than 0.10% (mass fraction), the porosity of UFCG is not significantly improved, and the grouting effect is not significantly reduced. The result of splitting tensile test shows that the bond performance of UFCG and concrete is significantly enhanced after adding MWCNTs.

Key words: multi-walled carbon nanotubes (MWCNTs), ultra-fine cement grout, strength, grouting pressure, grouting property, bond performance

CLC Number:

TU528

LIU Yunxiao, ZHANG Chunmiao, CAI Kaixuan, GU Fan, ZHOU Hui, LI Xiaoguang. Application of Carbon Nanotubes in Ultra-Fine Cement Grouts[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(7): 2309-2316.

References

[1] 米承勇, 王道平, 何智海. 超细水泥灌浆材料的研究与发展[J]. 粉煤灰综合利用, 2008, 21(6): 51-53.
MI C Y, WANG D P, HE Z H. Study and development of ultra-fine cement grouting materials[J]. Fly Ash Comprehensive Utilization, 2008, 21(6): 51-53 (in Chinese).
[2] 李发军. 超细水泥灌浆料在混凝土路面裂缝修补中的应用[J]. 中外建筑, 2008(5): 172-174.
LI F J. Application of minute cement grouting in the concrete road fissure repair[J]. Chinese and Overseas Architecture, 2008(5): 172-174 (in Chinese).
[3] 张玉斌, 鲍世辉, 张聪. 混杂纤维增强超高性能透水混凝土的弯曲性能研究[J]. 硅酸盐通报, 2022, 41(6): 1955-1962.
ZHANG Y B, BAO S H, ZHANG C. Flexural properties of hybrid fiber-reinforced ultra-high performance pervious concrete[J]. Bulletin of the Chinese Ceramic Society, 2022, 41(6): 1955-1962 (in Chinese).
[4] 路东, 张丽哲, 季涛. 基于有限元的不同聚丙烯纤维掺量的纤维增强混凝土抗裂性能研究[J]. 硅酸盐通报, 2020, 39(10): 3191-3195+3202.
LU D, ZHANG L Z, JI T. Crack resistance of fiber reinforced concrete with different polypropylene fiber content by finite element analysis[J]. Bulletin of the Chinese Ceramic Society, 2020, 39(10): 3191-3195+3202 (in Chinese).
[5] 王振波, 张君, 王庆. 混杂纤维增强延性水泥基复合材料力学性能与裂宽控制[J]. 建筑材料学报, 2018, 21(2): 216-221+227.
WANG Z B, ZHANG J, WANG Q. Mechanical behavior and crack width control of hybrid fiber reinforced ductile cementitious composites[J]. Journal of Building Materials, 2018, 21(2): 216-221+227 (in Chinese).
[6] 牛恒茂, 武文红, 邢永明, 等. 纤维桥接裂缝过程与分布对水泥基材料弯曲性能影响[J]. 建筑材料学报, 2016, 19(2): 352-358.
NIU H M, WU W H, XING Y M, et al. Effects of the process of polyvinyl alcohol(PVA) fiber bridging cracks and fiber distribution on the bending properties of cementitious composites[J]. Journal of Building Materials, 2016, 19(2): 352-358 (in Chinese).
[7] 曹伟, 宋雪梅, 王波, 等. 碳纳米管的研究进展[J]. 材料导报, 2007, 21: 77-82.
CAO W, SONG X M, WANG B, et al. Research progress in carbon nanotube[J]. Materials Review, 2007, 21: 77-82 (in Chinese).
[8] 陈卫祥, 陈文录, 徐铸德, 等. 碳纳米管的特性及其高性能的复合材料[J]. 复合材料学报, 2001, 18(4): 1-5.
CHEN W X, CHEN W L, XU Z D, et al. Characteristics of carbon nanotubes and high-quality composites[J]. Acta Materiae Compositae Sinica, 2001, 18(4): 1-5 (in Chinese).
[9] 赵俊捷, 陶文武, 曾利建, 等. 基于蛋白质分散的碳纳米管/环氧树脂粘结剂的粘结性能[J]. 复合材料学报, 2023, 40(2): 753-760.
ZHAO J J, TAO W W, ZENG L J, et al. Investigation of the bonding performance of a protein dispersed carbon nanotube/epoxy adhesive[J]. Acta Materiae Compositae Sinica, 2023, 40(2): 753-760 (in Chinese).
[10] CAMPILLO I, DOLADO J S, PORRO A. High-performance nanostructured materials for construction[M]//Nanotechnology in Construction. The Royal Society of Chemistry, 2004: 215-225.
[11] LIU Q L, SUN W, MA Z X, et al. Effect of carbon nanotube on mechanical and 2D-3D microstructure properties of cement mortars with silica fume[J]. Journal of the Chinese Ceramic Society, 2014(10): 1266-1273.
[12] CHAIPANICH A, RIANYOI R, NOCHAIYA T. The effect of carbon nanotubes and silica fume on compressive strength and flexural strength of cement mortars[J]. Materials Today: Proceedings, 2017, 4(5): 6065-6071.
[13] MUSSO S, TULLIANI J M, FERRO G, et al. Influence of carbon nanotubes structure on the mechanical behavior of cement composites[J]. Composites Science and Technology, 2009, 69(11/12): 1985-1990.
[14] CHAIPANICH A, NOCHAIYA T, WONGKEO W, et al. Compressive strength and microstructure of carbon nanotubes-fly ash cement composites[J]. Materials Science and Engineering: A, 2010, 527(4/5): 1063-1067.
[15] 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.
[16] NOCHAIYA T, CHAIPANICH A. Behavior of multi-walled carbon nanotubes on the porosity and microstructure of cement-based materials[J]. Applied Surface Science, 2010, 257(6): 1941-1945.
[17] 施韬, 李泽鑫, 李闪闪. 碳纳米管增强水泥基复合材料的自收缩及抗裂性能[J]. 复合材料学报, 2019, 36(6): 1528-1535.
SHI T, LI Z X, LI S S. Autogenous shrinkage and crack resistance of carbon nanotubes reinforced cement based composites[J]. Acta Materiae Compositae Sinica, 2019, 36(6): 1528-1535 (in Chinese).
[18] 李相国, 明添, 刘卓霖, 等. 碳纳米管水泥基复合材料耐久性及力学性能研究[J]. 硅酸盐通报, 2018, 37(5): 1497-1502.
LI X G, MING T, LIU Z L, et al. Research on durability and mechanical properties of carbon nanotube cement matrix composites[J]. Bulletin of the Chinese Ceramic Society, 2018, 37(5): 1497-1502 (in Chinese).
[19] 朱洪波, 王培铭, 李晨, 等. 多壁碳纳米管在水泥浆中的分散性[J]. 硅酸盐学报, 2012, 40(10): 1431-1436.
ZHU H B, WANG P M, LI C, et al. Reseach on disperion of multi-walled carbon nanotubes in cement paste[J]. Journal of the Chinese Ceramic Society, 2012, 40(10): 1431-1436 (in Chinese).
[20] 邱军, 王国建, 尚婧. 聚乙烯基吡咯烷酮修饰多壁碳纳米管的研究[J]. 高分子学报, 2007(4): 327-331.
QIU J, WANG G J, SHANG J. Multi-walled carbon nanotubes modified by poly(vinyl pyrrolidone)[J]. Acta Polymerica Sinica, 2007(4): 327-331 (in Chinese).
[21] 邱军. 多壁碳纳米管的表面功能化及其应用研究[D]. 上海: 同济大学, 2006.
QIU J. Study on surface functionalization of multi-walled carbon nanotubes and its application[D]. Shanghai: Tongji University, 2006 (in Chinese).
[22] HUNASHYAL A M, LOHITHA S J, QUADRI S S, et al. Experimental investigation of the effect of carbon nanotubes and carbon fibres on the behaviour of plain cement composite beams[J]. The IES Journal Part A: Civil & Structural Engineering, 2011, 4(1): 29-36.