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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A Review of Microscale, Rheological, Mechanical, Thermoelectrical and Piezoresistive Properties of Graphene Based Cement Composite
Sardar Kashif Ur Rehman,Sabina Kumarova,Shazim Ali Memon,Muhammad Faisal Javed,Mohammed Jameel +4 more
TL;DR: An in-depth study on a graphene-based cement composite was performed and for the first time, a review of flow, energy harvesting, thermoelectrical, and self-sensing properties of graphene and its derivatives as the bases of cement composite are presented.
Journal ArticleDOI
Dispersion of triethanolamine-functionalized graphene oxide (TEA-GO) in pore solution and its influence on hydration, mechanical behavior of cement composite
TL;DR: The authors chemically functionalized graphene oxide via triethanolamine (TEA), the removal of C O C groups on basal planes and the attachment of extra OH groups on edges promoted its dispersibility during hydration and in cement paste, when incorporated into cement, TEA-GO provided more nucleation sites due to better dispersion, further promoting the hydration degree.
Journal ArticleDOI
Influence of hybrid graphene oxide/carbon nanotubes on the mechanical properties and microstructure of magnesium potassium phosphate cement paste
Yuhang Du,Jian Yang,Blessen Skariah Thomas,Lihui Li,Huanyu Li,Wafaa Mohamed Shaban,Wai Tung Chong +6 more
TL;DR: In this paper, the effect of hybrid graphene oxide (GO)/carbon nanotubes (CNTs) on the mechanical and microstructural properties of the magnesium potassium phosphate cement (MKPC) paste was investigated.
Journal ArticleDOI
Conductivity and piezoresistivity of nano-carbon black (NCB) enhanced functional cement-based sensors using polypropylene fibres
TL;DR: In this paper, nano-carbon black (NCB) particles were attached to the surface of polypropylene (PP) fibres to enhance the conductivity and piezoresistivity of spherical conductors.
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Influence of Graphene Oxide on the Mechanical Properties, Fracture Toughness, and Microhardness of Recycled Concrete.
Jianlin Luo,Jianlin Luo,Shuaichao Chen,Qiuyi Li,Qiuyi Li,Chao Liu,Song Gao,Jigang Zhang,Junbing Guo +8 more
TL;DR: GO-modified natural sand (NS)- or recycled sand (RS)-based mortars with six GO fractions (wGOs) were fabricated to explore their 28 d mechanical strengths, fracture toughness, and microhardness, which benefit a wide range of applications of recycled concrete products.
References
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Journal ArticleDOI
Fast parallel algorithms for short-range molecular dynamics
TL;DR: In this article, three parallel algorithms for classical molecular dynamics are presented, which can be implemented on any distributed-memory parallel machine which allows for message-passing of data between independently executing processors.
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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Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
TL;DR: Graphene is established as the strongest material ever measured, and atomically perfect nanoscale materials can be mechanically tested to deformations well beyond the linear regime.
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Processable aqueous dispersions of graphene nanosheets
TL;DR: It is reported that chemically converted graphene sheets obtained from graphite can readily form stable aqueous colloids through electrostatic stabilization, making it possible to process graphene materials using low-cost solution processing techniques, opening up enormous opportunities to use this unique carbon nanostructure for many technological applications.
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A second-generation reactive empirical bond order (REBO) potential energy expression for hydrocarbons
Donald W. Brenner,Olga Shenderova,Judith A. Harrison,Steven J. Stuart,Boris Ni,Susan B. Sinnott +5 more
TL;DR: Brenner as mentioned in this paper presented a second generation potential energy function for solid carbon and hydrocarbon molecules that is based on an empirical bond order formalism, allowing for covalent bond breaking and forming with associated changes in atomic hybridization within a classical potential, producing a powerful method for modelling complex chemistry in large many-atom systems.