Effect of Carbon Nanotubes Treated Aggregates on Compressive Strength of Concrete

Ao Zhou; Renyuan Qin; Denvid Lau

doi:10.1007/978-981-13-7603-0_2

Effect of Carbon Nanotubes Treated Aggregates on Compressive Strength of Concrete

Department of Architecture and Civil Engineering

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 12 - Chapter in an edited book (Author) › peer-review

3 Citations (Scopus)

Abstract

This paper presents the results of a series of compression tests on concrete with carbon nanotubes (CNTs) treated aggregates and untreated aggregates at different curing ages. The compressive tests were conducted after 3, 7 and 28 days curing to capture the effect of CNTs treated aggregates on the stress-strain behavior of concrete and strength development. The results show a slight reduction in terms of compressive strength at different curing ages when CNTs treated aggregates are incoporated in concrete. Apart from the reduction in compressive strength, a significant improvement in ductility can be found. The reduction is related to the adhesion between aggregates and CNTs that becomes the weak link in concrete although the interfacial transition zone (ITZ) can be enhanced by the CNTs, which results in a reduction of compressive strength. The sliding among aggregates, CNTs and cement matrix provides the tolerance towards the deformation for the entire material system, leading to a enhanced ductility.

Original language	English
Title of host publication	ACMSM25
Subtitle of host publication	Proceedings of the 25th Australasian Conference on Mechanics of Structures and Materials
Editors	Chien Ming Wang, Johnny C.M Ho, Sritawat Kitipornchai
Publisher	Springer
Pages	15-21
ISBN (Electronic)	978-981-13-7603-0
ISBN (Print)	978-981-13-7602-3
DOIs	https://doi.org/10.1007/978-981-13-7603-0_2
Publication status	Published - 2020

Publication series

Name	Lecture Notes in Civil Engineering
Volume	37
ISSN (Print)	2366-2557
ISSN (Electronic)	2366-2565

Research Keywords

Aggregate size
Carbon nanotubes
Concrete compressive strength
Interfacial transition zone

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10.1007/978-981-13-7603-0_2

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Zhou, A., Qin, R., & Lau, D. (2020). Effect of Carbon Nanotubes Treated Aggregates on Compressive Strength of Concrete. In C. M. Wang, J. C. M. Ho, & S. Kitipornchai (Eds.), ACMSM25: Proceedings of the 25th Australasian Conference on Mechanics of Structures and Materials (pp. 15-21). (Lecture Notes in Civil Engineering; Vol. 37). Springer . https://doi.org/10.1007/978-981-13-7603-0_2

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abstract = "This paper presents the results of a series of compression tests on concrete with carbon nanotubes (CNTs) treated aggregates and untreated aggregates at different curing ages. The compressive tests were conducted after 3, 7 and 28 days curing to capture the effect of CNTs treated aggregates on the stress-strain behavior of concrete and strength development. The results show a slight reduction in terms of compressive strength at different curing ages when CNTs treated aggregates are incoporated in concrete. Apart from the reduction in compressive strength, a significant improvement in ductility can be found. The reduction is related to the adhesion between aggregates and CNTs that becomes the weak link in concrete although the interfacial transition zone (ITZ) can be enhanced by the CNTs, which results in a reduction of compressive strength. The sliding among aggregates, CNTs and cement matrix provides the tolerance towards the deformation for the entire material system, leading to a enhanced ductility.",

keywords = "Aggregate size, Carbon nanotubes, Concrete compressive strength, Interfacial transition zone",

author = "Ao Zhou and Renyuan Qin and Denvid Lau",

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Effect of Carbon Nanotubes Treated Aggregates on Compressive Strength of Concrete. / Zhou, Ao; Qin, Renyuan ; Lau, Denvid.
ACMSM25: Proceedings of the 25th Australasian Conference on Mechanics of Structures and Materials. ed. / Chien Ming Wang; Johnny C.M Ho; Sritawat Kitipornchai. Springer , 2020. p. 15-21 (Lecture Notes in Civil Engineering; Vol. 37).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 12 - Chapter in an edited book (Author) › peer-review

TY - CHAP

T1 - Effect of Carbon Nanotubes Treated Aggregates on Compressive Strength of Concrete

AU - Zhou, Ao

AU - Qin, Renyuan

AU - Lau, Denvid

PY - 2020

Y1 - 2020

N2 - This paper presents the results of a series of compression tests on concrete with carbon nanotubes (CNTs) treated aggregates and untreated aggregates at different curing ages. The compressive tests were conducted after 3, 7 and 28 days curing to capture the effect of CNTs treated aggregates on the stress-strain behavior of concrete and strength development. The results show a slight reduction in terms of compressive strength at different curing ages when CNTs treated aggregates are incoporated in concrete. Apart from the reduction in compressive strength, a significant improvement in ductility can be found. The reduction is related to the adhesion between aggregates and CNTs that becomes the weak link in concrete although the interfacial transition zone (ITZ) can be enhanced by the CNTs, which results in a reduction of compressive strength. The sliding among aggregates, CNTs and cement matrix provides the tolerance towards the deformation for the entire material system, leading to a enhanced ductility.

AB - This paper presents the results of a series of compression tests on concrete with carbon nanotubes (CNTs) treated aggregates and untreated aggregates at different curing ages. The compressive tests were conducted after 3, 7 and 28 days curing to capture the effect of CNTs treated aggregates on the stress-strain behavior of concrete and strength development. The results show a slight reduction in terms of compressive strength at different curing ages when CNTs treated aggregates are incoporated in concrete. Apart from the reduction in compressive strength, a significant improvement in ductility can be found. The reduction is related to the adhesion between aggregates and CNTs that becomes the weak link in concrete although the interfacial transition zone (ITZ) can be enhanced by the CNTs, which results in a reduction of compressive strength. The sliding among aggregates, CNTs and cement matrix provides the tolerance towards the deformation for the entire material system, leading to a enhanced ductility.

KW - Aggregate size

KW - Carbon nanotubes

KW - Concrete compressive strength

KW - Interfacial transition zone

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PB - Springer

ER -

Effect of Carbon Nanotubes Treated Aggregates on Compressive Strength of Concrete

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