Effect of Using Hybrid Nano-Particles on Physical and Mechanical Properties of Cement Mortar

Authors

  • Ahmed H. Abd el-raheem Professor in Faculty of Engineering, Mansoura University, Structural Engineering Department, Egypt
  • Sohir Negm Professor in Faculty of Engineering (Shoubra), Benha University, Math and Physics Department, Cairo, Egypt
  • Ahmed M.Tahwia Assistant Professor in Faculty of Engineering, Mansoura University, Structural Engineering Department, Egypt
  • Basma A. Abd el-rahman Post graduate Student in Faculty of Engineering. Mansoura University, Structural Engineering Department, Egypt

Keywords:

Graphene sheets, Nano-silica, Nano-clay, Compressive strength, Flexural strength, Thermal conductivity.

Abstract

This research evaluates the addition of graphene sheets and hybrid nano-materials (graphene with different nano-materials like nano-silica or nano-clay) on compressive strength, flexural strength and thermal conductivity of cement mortar. Graphene sheets were added in three percentages (0.04%, 0.05%, and 0.06%) and (0.03%, 0.04%, and 0.05%) graphene sheets with 1%nano-silica or with 5% nano-clay by weight of cementitious materials. For all specimens, w/c ratio 0.4was applied. Scanning Electron Microscope and thermal conductivity tests were also performed on the optimum specimens at age 28 days. Results indicated that the optimum dose of graphene sheets was 0.05% by weight where the compressive strength, the flexural strength were improved by 35.66%  and 33.33%  respectively, and low thermal conductivity by 6.36% at age 28 days .No significant increase in compressive and flexural strength on adding  hybrid nano-materials (graphene sheets with 1%nano- silica) to mortar. Also reduction effect in compressive and flexural strengths was achieved on adding hybrid nano-materials (graphene sheets with 5% nano-clay) to mortar.  High thermal conductivity was obtained at age 28 days with respect to control ones when hybrid nano-materials were added to cement mortar.

References

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Published

2016-11-02

How to Cite

Abd el-raheem, A. H., Negm, S., M.Tahwia, A., & Abd el-rahman, B. A. (2016). Effect of Using Hybrid Nano-Particles on Physical and Mechanical Properties of Cement Mortar. American Scientific Research Journal for Engineering, Technology, and Sciences, 26(2), 118–139. Retrieved from https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/2326

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