Journal ArticleDOI
Reactive molecular dynamics and experimental study of graphene-cement composites: Structure, dynamics and reinforcement mechanisms
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TLDR
In this article, the effects of graphene and graphene oxide on the hydration, microstructures and mechanical properties of cement paste were investigated by using reactive force field molecular dynamics (MD), revealing that functional hydroxyl groups in GO provide non-bridging oxygen (NBO) sites that accept hydrogen-bonds of interlayer water molecules in the calcium silicate hydrate (CSH).About:
This article is published in Carbon.The article was published on 2017-05-01. It has received 278 citations till now. The article focuses on the topics: Calcium silicate hydrate & Graphene.read more
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Fast parallel algorithms for short-range molecular dynamics
TL;DR: Comparing the results to the fastest reported vectorized Cray Y-MP and C90 algorithm shows that the current generation of parallel machines is competitive with conventional vector supercomputers even for small problems.
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A critical review on research progress of graphene/cement based composites
TL;DR: A critical review on recent research findings about GND modified cement-based materials was conducted in this paper, where the influence of GND on properties of cement matrix including microstructure, hydration, mechanical properties, etc.
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Graphene-based nanosheets for stronger and more durable concrete: A review
Ezzatollah Shamsaei,Felipe Basquiroto de Souza,Xupei Yao,Emad Benhelal,Abozar Akbari,Wenhui Duan +5 more
TL;DR: Graphene and graphene-based nanosheets (GNS) possess extraordinary mechanical, chemical, thermal and electrical properties, enabling attractive applications, ranging from structural strength/durability improvement, anti-corrosion, to self-cleaning surfaces and energy saving.
Journal ArticleDOI
Experimental study of the effects of graphene oxide on microstructure and properties of cement paste composite
TL;DR: In this paper, the effects of graphene oxide on hydration degrees, macro-mechanical strength and calcium-silicate-hydrate (C-S-H) structure of cement-based composites were investigated through comprehensive experimental tests.
Journal ArticleDOI
Review on the research progress of cement-based and geopolymer materials modified by graphene and graphene oxide
TL;DR: In this paper, the research progress of graphene-based nanomaterials in improving the properties of cement-based materials and geopolymer materials, and points out the main challenges and development prospects of such materials in the construction field in the future.
References
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Journal ArticleDOI
Hexagonal Boron Nitride and Graphite Oxide Reinforced Multifunctional Porous Cement Composites
Mohammad A. Rafiee,Tharangattu N. Narayanan,Daniel P. Hashim,Navid Sakhavand,Rouzbeh Shahsavari,Robert Vajtai,Pulickel M. Ajayan +6 more
TL;DR: In this article, the synthesis and characterization of multifunctional cement and concrete composites filled with hexagonal boron nitride (h-BN) and graphite oxide (GO), is reported and their superior mechanical strength and oil adsorption properties compared to composites devoid of fillers are illustrated.
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Investigation of Physical Properties of Graphene-Cement Composite for Structural Applications
TL;DR: In this paper, the thermal and microstructural changes in the hydrated graphene-Portland cement composites were investigated using X-ray diffraction and electron microscopy (EM) techniques.
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Materials Genome for Graphene-Cement Nanocomposites
TL;DR: In this paper, the authors present a general framework for using a system approach to study cement-based materials and highlight primary findings in manufacturing and characterizing graphene-cement nanocomposites (GCNCs).
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Surface-modified graphite nanomaterials for improved reinforcement efficiency in cementitious paste
TL;DR: In this article, surface modification techniques employed in this study emphasize introduction of hydrophilic groups on graphite nanomaterials to facilitate their dispersion in aqueous media, and the effects of these surface modifications on the performance characteristics of cementitious nanocomposite were evaluated.
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Study on the three dimensional mechanism of graphene oxide nanosheets modified cement
TL;DR: In this article, a 3D mechanism model of graphene oxide (GO) nanosheets modified cement was established by using the improved Hummers method and characterized by Fourier transform infrared spectroscope (FTIR), transmission electron microscope (TEM) and atomic force microscope (AFM).