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Estimation of elastic modulus and Poisson’s ratio of concrete containing graphene nanosheets: A focus on nano-filler agglomeration and hydration time | ||
Computational Sciences and Engineering | ||
دوره 2، شماره 1، تیر 2022، صفحه 111-123 اصل مقاله (420.38 K) | ||
نوع مقاله: Original Article | ||
شناسه دیجیتال (DOI): 10.22124/cse.2022.22353.1033 | ||
نویسندگان | ||
Roozbeh Pouyanmehr1؛ Mohammad Kazem Hassanzadeh-Aghdam* 2؛ Reza Ansari1 | ||
1University of Guilan | ||
2Department of Engineering Science, Faculty of Technology and Engineering, East of Guilan, University of Guilan, Rudsar-Vajargah, Iran | ||
چکیده | ||
In the current study, the influences of adding graphene nanosheets (GNSs) on the elastic characteristics of concrete are examined using the Mori-Tanaka micromechanical model. By the use of the base concrete hydration equation, the role of hydration time in the Young’s modulus and Poisson ratio of GNS-filled concrete is analyzed. Also, the formation of GNS agglomeration as one of the most major microstructural features of composite materials containing nano-sized particles is considered in the micromechanical simulation. Significant contribution of the hydration time to the elastic properties of GNS-reinforced concrete is confirmed. Generally, the addition of GNSs can help to enhance the concrete elastic modulus and decrease the Poisson’s ratio. The results show that well-dispersed GNSs lead to the enhancement of mechanical performance of the concrete, whereas GNS agglomeration causes significant reduction of elastic modulus. | ||
کلیدواژهها | ||
Concrete؛ Graphene nanosheet؛ Elastic property؛ Hydration؛ Agglomeration | ||
مراجع | ||
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