Effects of Graphene Oxide On Early-age Hydration And Electrical Resistivity Of Portland Cement Paste
Wengui Li,Wengui Li,Xiangyu Li,Xiangyu Li,Shu Jian Chen,Yan Ming Liu,Wenhui Duan,Surendra P. Shah +7 more
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TLDR
In this article, the effects of graphene oxide (GO) on the early-age hydration process and mechanical properties of Portland cement paste were experimentally investigated in a study based on an isothermal calorimeter measurement, the hydration rate of cement was observed to increase with the increase of GO content by nucleation effect.About:
This article is published in Construction and Building Materials.The article was published on 2017-04-01 and is currently open access. It has received 208 citations till now. The article focuses on the topics: Portland cement & Cement.read more
Citations
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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
Piezoresistive properties of cement-based sensors: Review and perspective
TL;DR: In this article, the fundamental concepts, key components, manufacturing process, piezoresistivity measurements, and primary applications of cement-based sensors are reviewed in smart concrete to self-sense and monitor the damages and cracks through the measurements of concrete electrical resistivity.
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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.
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Investigation on dispersion of graphene oxide in cement composite using different surfactant treatments
TL;DR: In this paper, the dispersion of GO in water, alkali and several ionic species is investigated with the aid of UV-vis spectroscopy, showing that the amount of 0.03% GO by weight of cement can increase the flexural strength of GO-cement composite up to 67%.
References
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Distribution of carbon nanotubes in fresh ordinary Portland cement pastes: understanding from a two-phase perspective
Shu Jian Chen,Wei Wang,Kwesi Sagoe-Crentsil,Francis Gerard Collins,Xiao Ling Zhao,Mainak Majumder,Wenhui Duan +6 more
TL;DR: In this article, carbon nanotube (CNT) reinforced ordinary Portland cement (OPC) paste composites were quantified and the presence of CNTs in each phase was quantified.
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Effect of graphene nanoplatelets on hydration behaviour of Portland cement by thermal analysis
TL;DR: In this article, the effect of graphene nanoplatelets (GNP) on the hydration behavior of Portland cement was investigated through an experimental investigation with isothermal calorimetry and thermogravimetric analysis.
Patent
Contactless, transformer-based measurement of the resistivity of materials
Zongjin Li,Wenlai Li +1 more
TL;DR: In this paper, an apparatus and a method for measuring the resistivity of a sample of cement-based material is presented, where a transformer is formed with a primary coil, a secondary coil is formed by means of the sample of a concrete material, and means for supplying a voltage to the primary, means for measuring voltage induced in the sample, and mean for measuring current induced in said sample.
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Chemically modified graphene oxide/polybenzimidazobenzophenanthroline nanocomposites with improved electrical conductivity
TL;DR: Graphene/polybenzimidazobenzophenanthroline nanocomposites were prepared through the liquid-phase exfoliation of graphene oxide (GO) and reduced graphene oxide in methanesulfonic acid with subsequent solution mixing as mentioned in this paper.