PatentDOI
Highly dispersed carbon nanotube-reinforced cement-based materials
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TLDR
In this paper, a composite cement material is prepared from cement material and carbon nanotubes, wherein the carbon-nanotubes are present from about 002 wt % to about 1 0 % based on the weight of the cement material.About:
This article is published in Cement and Concrete Research.The article was published on 2009-02-06. It has received 624 citations till now. The article focuses on the topics: Cementitious & Cement.read more
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Reinforcing effects of graphene oxide on portland cement paste
Kai Gong,Zhu Pan,Asghar Habibnejad Korayem,Ling Qiu,Dan Li,Francis Gerard Collins,Chien Ming Wang,Wenhui Duan +7 more
TL;DR: In this paper, the reinforcing effects of graphene oxide (GO) on portland cement paste are investigated, and it is discovered that the introduction of 0.03% by weight GO sheets into the cement paste can increase the compressive strength and tensile strength of the cement composite by more than 40%.
Journal ArticleDOI
Mechanical properties and microstructure of a graphene oxide-cement composite
Zhu Pan,Li He,Ling Qiu,Asghar Habibnejad Korayem,Gang Li,Jun Wu Zhu,Frank Collins,Dan Li,Wenhui Duan,Ming Chien Wang,Ming Chien Wang +10 more
TL;DR: Graphene oxide (GO) is the product of chemical exfoliation of graphite and is a potential candidate for use as nanoreinforcements in cement-based materials as discussed by the authors.
Journal ArticleDOI
Nano reinforced cement and concrete composites and new perspective from graphene oxide
TL;DR: In this article, the effect of incorporating nanomaterials in low dosages to the fabrication, workability, hydration, microstructure, and mechanical properties of cement-based composites are comprehensively reviewed.
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Beneficial role of nanosilica in cement based materials – A review
TL;DR: In this paper, the effects of nanosilica addition on hydration kinetics, microstructure refinement, fresh/hardened properties and durability characteristics of concrete are summarized.
Journal ArticleDOI
Intrinsic self-sensing concrete and structures: A review
Baoguo Han,Siqi Ding,Xun Yu +2 more
TL;DR: This paper systematically introduces research progress of the Intrinsic self-sensing concrete, with attentions to its compositions, fabrication methods, sensing signal testing methods, sensed properties and generation mechanism, and structural applications.
References
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Journal ArticleDOI
Helical microtubules of graphitic carbon
TL;DR: Iijima et al. as mentioned in this paper reported the preparation of a new type of finite carbon structure consisting of needle-like tubes, which were produced using an arc-discharge evaporation method similar to that used for fullerene synthesis.
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An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments
Warren C. Oliver,George M. Pharr +1 more
TL;DR: In this paper, the authors used a Berkovich indenter to determine hardness and elastic modulus from indentation load-displacement data, and showed that the curve of the curve is not linear, even in the initial stages of the unloading process.
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Dispersion and alignment of carbon nanotubes in polymer matrix: A review
TL;DR: In this article, the authors review recent progress and advances that have been made on: (a) dispersion of CNTs in a polymer matrix, including optimum blending, in situ polymerization and chemical functionalization; and (b) alignment of CNNs in the matrix enhanced by ex situ techniques, force and magnetic fields, electrospinning and liquid crystalline phase-induced methods.
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Mechanical properties of carbon nanotubes
Jean-Paul Salvetat,Jean-Marc Bonard,Neil H. Thomson,Andrzej J. Kulik,László Forró,W. Benoit,Libero Zuppiroli +6 more
TL;DR: A variety of outstanding experimental results on the elucidation of the elastic properties of carbon nanotubes are fast appearing as discussed by the authors, which are based mainly on the techniques of high-resolution transmission electron microscopy and atomic force microscopy (AFM) to determine the Young's moduli of single-wall nanotube bundles and multi-walled nanotubels.
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Atomistic simulations of nanotube fracture
TL;DR: In this article, the fracture behavior of carbon nanotubes is studied by molecular mechanics simulations and it is found that fracture behavior is almost independent of the separation energy and to depend primarily on the inflection point in the interatomic potential.