Synergetic Effect of Ethylene Glycol for Production of Hybrid Sustainable Geopolymer Concrete

Document Type : Original Article

Authors

1 Housing and Building National Research Centre (HBNRC), 87 El-Tahrir St., Dokki, Giza, P.O. Box 1770 Cairo, Egypt.

2 Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt.

Abstract

The world is facing the challenges of global warming and climate changes. Cement industry is responsible for some of the major CO2 emissions, so it is vital to discover an alternative to ordinary Portland cement (OPC). Geopolymer technology can offer a viable solution towards this target where 80% to 90% reduction in CO2 emission can be achieved by the substituting of (OPC) with geopolymer. The aim of this study is the development of ground granulated blast furnace slag with metakaolin (GGBFS-MK) based geopolymer concrete and examination of the possibility of its usage in the building sector as long-term structural materials. Ethylene glycol (EG) was used to create hybrid organic and inorganic geopolymer composites. The results of the research revealed that GGBFS-MK based geopolymer can be developed, and its physical/mechanical properties were shown to have a very good performance after adding (EG) in different ratios 0.5,1, 1.5, 2, 2.5 % from the total binding weight. According to varied experimental tests FTIR (Fourier transformer infra-red), XRD (X-ray diffraction), and SEM (scanning electron microscope), compressive strength and thermal resistance, the best ratio was found to be 0.5% (EG) which submits a good workability, was not easily affected by temperature changes and gives strength higher than control which gave (66.73, 69.11, 81.93) MPa while using 0.5% (EG) gave (81.12, 85.52, 116.75) MPa at 7, 28 and 90 days of curing respectively.

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Egyptian Journal of Chemistry
Volume 65, Issue 132 - Serial Number 13
Special Issue: Chemistry and Global Challenges (Part B)
December 2022
Pages 1205-1212

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History

  • Receive Date: 10 October 2022
  • Revise Date: 16 December 2022
  • Accept Date: 25 December 2022

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