The Combined Effect of the Plasticizer and Multi-Walled Carbon Nanotubes on the Cement Hydration Products

Abstract:

There are many research devoted to the influence of carbon nanotubes (CNT) on the structure and properties of cement systems. In the course of this research, the combined influence of of multi-walled carbon nanotubes (MWCNT) and polycarboxylate (PCE) plasticizer on the products of hydration and the properties of hardened cement paste was investigated. The strength characteristics of nanomodified hardened cement paste and the hydration products were determined by the usage of modern methods of physico-mechanical and physico-chemical analyses. Based on the physico-chemical investigations, it was concluded the necessity of additional experiments, associated primary with questions of uniform distribution of the nanostructures and their chemical interactions with another components of admixture and cement system.

• Periodical: Solid State Phenomena (Volume 276)
• Pages: 21-26
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.276.21
• Online since: June 2018
• Authors: Gintautas Skripkiūnas, Grigory Ivanovich Yakovlev, Ekaterina Karpova*, Anastasiya Fedorovna Gordina, Arina Shaybadullina
• Keywords: Carbon Nanotubes, Cement Hydrates, Combined Effect, Dispersion, Plasticizer

References

[1] X. Cui, B. Han, Q. Zheng, X. Yu, S. Dong, L. Zhang, J. Ou, Mechanical properties and reinforcing mechanisms of cementitious composites with different types of multiwalled carbon nanotubes, Comp.: Part A 103 (2017) 131–147.

DOI: 10.1016/j.compositesa.2017.10.001

[2] P. Rovnanik, H. Simonova, L. Topolar, P. Bayer, P. Schmid, Z. Kersner, Carbon nanotube reinforced alkali-activated slag mortars, Const. and Build. Mat. 119 (2016) 223–229.

DOI: 10.1016/j.conbuildmat.2016.05.051

[3] S. Xu, J. Liu, Q. Li, Mechanical properties and microstructure of multi-walled carbon nanotube-reinforced cement paste, Const. and Build. Mat. 76 (2015) 16–23.

DOI: 10.1016/j.conbuildmat.2014.11.049

[4] S. J. Chen, B. Zou, F. Collins, X. L. Zhao, M. Majumber, W. H. Duan, Predicting the influence of ultrasonication energy on the reinforcing efficiency of carbon nanotubes, Carbon 77 (2014) 1-10.

DOI: 10.1016/j.carbon.2014.04.023

[5] Y.-R. Zhang, X.-M. Kong, Z.-B. Lu, Z.-C. Lua, S.-S. Hou, Effects of the charge characteristics of polycarboxylate superplasticizers on the adsorption and the retardation in cement pastes, Cem. and Concr. Res. 67 (2015) 184–196.

DOI: 10.1016/j.cemconres.2014.10.004

[6] F. Kong, L. Pan, C. Wang, D. Zhang, N. Xu. Effects of polycarboxylate superplasticizers with different molecular structure on the hydration behavior of cement paste, Const. and Build. Mat. 105 (2016) 545–553.

DOI: 10.1016/j.conbuildmat.2015.12.178

[7] C. Nalet, A. Nonat, Effects of functionality and stereochemistry of small organic molecules on the hydration of tricalcium silicate, Cem. and Concr. Res. 87 (2016) 97–104.

DOI: 10.1016/j.cemconres.2016.06.002

[8] M. Liebscher1, A. Lange, C. Schrofl, R. Fuge, V. Mechtcherine, J. Plank, A. Leonhardt, Impact of the molecular architecture of polycarboxylate superplasticizers on the dispersion of multi-walled carbon nanotubes in aqueous phase, J. Mat. Sci. (2017).

DOI: 10.1007/s10853-016-0522-3

[9] B. Zou, S. J. Chen, A. H. Korayem, F. Collins, C. M. Wang, W. H. Duan, Effect of ultrasonication energy on engineering properties of carbon nanotube reinforced cement pastes, Carbon 85 (2015) 212-220.

DOI: 10.1016/j.carbon.2014.12.094