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
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Study of optimizing graphene oxide dispersion and properties of the resulting cement mortars
Xiantong Yan,Xiantong Yan,Dapeng Zheng,Dapeng Zheng,Haibin Yang,Haibin Yang,Hongzhi Cui,Manuel Monasterio,Yiu Lo +8 more
TL;DR: In this article, the authors compared 6 different kinds of superplasticizers (SP) to optimize the dispersion of GO in saturated Ca(OH)2 solution which can simulate the strong alkaline environment in the microstructure of cement matrix.
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Cement-Based Materials Containing Graphene Oxide and Polyvinyl Alcohol Fiber: Mechanical Properties, Durability, and Microstructure
TL;DR: The addition of GO coupling with PVA fiber in cement-based materials could promote hydration of cement, refine the microstructure, and significantly improve mechanical strength and durability.
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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.
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Comparative effects of sterically stabilized functionalized carbon nanotubes and graphene oxide as reinforcing agent on physico-mechanical properties and electrical resistivity of cement nanocomposites
Ramanjit Kaur,N.C. Kothiyal +1 more
TL;DR: In this article, a comparison of enhanced mechanical properties of cement nanocomposites (CNCs) incorporating polycarboxylate superplasticizer (PCE-SP) modified graphene oxide and functionalized carbon nanotubes (SP@GO and SP@FCNT) is presented.
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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.
References
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Graphene oxide dispersions in organic solvents.
TL;DR: In all of these solvents, full exfoliation of the graphite oxide material into individual, single-layer graphene oxide sheets was achieved by sonication, and graphene oxide dispersions exhibited long-term stability and were made of sheets between a few hundred nanometers and a few micrometers large.
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Nanotechnology in concrete – A review
TL;DR: In this paper, the state of the field of nanotechnology in concrete is reviewed and the impact of recent advances in instrumentation and computational materials science and their use in concrete research is discussed.
PatentDOI
Highly dispersed carbon nanotube-reinforced cement-based materials
TL;DR: 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.
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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%.
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Investigation of blended cement hydration by isothermal calorimetry and thermal analysis
Ivindra Pane,Will Hansen +1 more
TL;DR: In this paper, the authors used differential thermal analysis, thermogravimetric analysis (DTA/TGA) and isothermal calorimetry to determine the degree of hydration of blended cements and pozzolan reaction.