The Role of Nano-Technology in Sustainable Construction: A Case Study of Using Nano Granite Waste Particles in Cement Mortar

  • E. S. Bakhoum National Research Centre, Egypt
  • Gihan Loutfy Kamel Garas National Research Centre, Egypt http://orcid.org/0000-0002-6389-2021
  • M. E. Allam National Research Centre, Egypt
  • H. Ezz National Research Centre, Egypt

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Abstract

Better understanding of the properties of cement-based materials, one of the most widely used building materials, at the nano-scale is crucial to improve its functionality in the built environment. This paper presents areas of using nano-materials in improving the characteristics of cement-based materials as well as introducing a new role of nano-technology together with waste management in enhancing the concept of sustainable construction.


A case study on the use of nano-granite waste particles as a replacement of cement and fine aggregate in mortar production is presented.


The research concluded that replacing 5% cement and 10% sand with nano-granite waste in the mortar mix increased the compressive strength of the green mortar by 41% compared to that of the control mix (CM). SEM images reinforced this result as the green mortar mix showed maximum density and minimum micro cracks and number of pores.


A comparative study between the green mortar and traditional mortar was carried out using sustainability indicators to examine the environmental, social and economic implications. The environmental and social attributes showed a saving of 10% in the field of resource consumption, whereas savings in energy consumption and CO2 emissions reached 5%. The economic field showed saving of 6.5% indicating promising results in enhancing the sustainable construction industry.

Author Biographies
E. S. Bakhoum

National Research Centre, Egypt, Elbohouth St., Dokki, Giza, Egypt

Gihan Loutfy Kamel Garas

National Research Centre, Egypt, Elbohouth St., Dokki, Giza, Egypt

M. E. Allam

National Research Centre, Egypt, Elbohouth St., Dokki, Giza, Egypt

H. Ezz

National Research Centre, Egypt, Elbohouth St., Dokki, Giza, Egypt

Keywords
Sustainable construction, nano-technology, nano-granite waste, green buildings.

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