Journal of Concrete Structures and Materials

Journal of Concrete Structures and Materials

Investigation and production of Graphene Solution in order to Increase the Mechanical Strength of Cement Mixtures

Document Type : Original Article

Authors
kianoosh samimi 1
Mahyar Pakan 2
1 Assistance Professor, Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University, Tehran, Iran.
2 Ph.D. Student, Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University, Tehran, Iran.
10.30478/jcsm.2023.369056.1300
Abstract
Using different additives in order to increase the durability and mechanical resistance of concrete is one of the new approaches in concrete technology. In recent years, graphene has attracted attention due to its unique properties. However, the phenomenon of graphene accumulation in cement mixtures and high production costs have challenged its application in the concrete industry. For this purpose, it is necessary to use a graphene dispersing agent in the cement structure. This research used surfactants to spread graphene sheets in cement structures. This method has resulted in producing a cheap solution compared to typical methods, which can be used as an additive. The results of this research showed that the surfactant solution can increase mechanical properties at early ages. Detailed microstructure examination by FESEM analysis showed that the compounds containing 0.56 g/l of surfactant have a denser structure than the control sample, and also the compressive strength of the cement paste increased by 28.66% compared to the control sample at the age of 7 days. TGA and XRD analyses show that graphene played an effective role in nucleation and produced CH and C-S-H products in the cement structure. This solution can be used as a new additive in many construction projects.
Keywords
Microstructure
Surfactant
Graphene
Graphite
Compressive Strength

Subjects

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Journal of Concrete Structures and Materials
Volume 8, Issue 1 - Serial Number 15
November 2023
Pages 42-58

  • Receive Date 08 November 2022
  • Revise Date 27 June 2023
  • Accept Date 31 May 2023