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http://dx.doi.org/10.14190/JRCR.2022.10.3.227

Experimental Study on the Reological Properties of Carbon Nano Materials as Cement Composites  

Kim, Won-Woo (Department of Structural Engineering Research, Korea institute of civil engineering and building technology)
Moon, Jae-Heum (Department of Structural Engineering Research, Korea institute of civil engineering and building technology)
Yang, Keun-Hyeok (Department of Architectural Engineering, Kyonggi University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.10, no.3, 2022 , pp. 227-234 More about this Journal
Abstract
In this study, the rheological properties of cement paste composites applied with carbon-based nano-materials were experimental analyzed. Flow table and rheological properties, compressive strength were measured in the cement paste using graphene oxide asqueous solution and carbon nanotube aqueous solution. When carbon nano-materials was mixed in an aqueous solution, flow decreased and plastic viscosity and shear stress were increased. In particular, graphene oxide rapidly increased the plastic viscosity and shear stress. In the case of carbon nanotube aqueous solution, when less than 0.2 % was mixed, the increase rate was low compared to graphene oxide. This is because the specific surface area of graphene, which is in the form of a plate, is large. The compressive strength showed a small amount in strength increase when graphene mix, and CNT had a strength about 112 % of OPC. Carbon-based nanomaterials, is considered that CNT are suitable more to be used construction materials. However, extra studies on the surfactant to be used for mixing proportion and dispersion will be needed.
Keywords
Nano-materials; Graphene; Carbon nanotube; Rheology;
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Times Cited By KSCI : 2  (Citation Analysis)
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