Improvement of repair mortars using multi-walled carbon nanotubes-Reference-Cited by-同舟云学术

Improvement of repair mortars using multi-walled carbon nanotubes

Published:2019-04 Issue:2 Volume:172 Page:71-84
ISSN:1747-650X
Container-title:Proceedings of the Institution of Civil Engineers - Construction Materials
language:en
Short-container-title:Proceedings of the Institution of Civil Engineers - Construction Materials

Author:

de Medeiros Marcelo Henrique Farias¹,Dranka Francielle²,Souza Diego Jesus³,Medeiros-Junior Ronaldo A.⁴

Affiliation:

1. Professor, Department of Civil Construction, Federal University of Parana – UFPR, Curitiba, Brazil

2. Master's student, Department of Civil Construction, Federal University of Parana – UFPR, Curitiba, Brazil

3. PhD student, Department of Civil Construction, Federal University of Parana – UFPR, Curitiba, Brazil

4. Professor, Department of Civil Construction, Federal University of Parana – UFPR, Curitiba, Brazil (corresponding author: )

Abstract

The research reported in this paper focused on the improvement of repair mortars using multi-walled carbon nanotubes. Compressive strength, squeeze flow and flow-table tests were performed to assess the effects of incorporation of nanotubes on the rheological and strength properties of mortars. A reference mortar and five mortars with nanotubes were made, with nanotubes sourced from two different manufacturers. It was found that the cementitious composites were stiffer with higher nanotube content and that no more than 0·3% should be used to ensure mortar fluidity. Regarding the compressive strength, the results indicated that 0·3 and 0·4% of nanotubes increased the strength by 22 and 27%, respectively. However, 0·5% made the mortar difficult to mix and did not result in increased strength.

Publisher

Thomas Telford Ltd.

Subject

Mechanics of Materials,General Materials Science,Civil and Structural Engineering

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/jcoma.16.00049

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5. Comparison between rheological models for portland cement pastes

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