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Effect of Curing Conditions on the Mechanical Properties of Geopolymer Binder Based Natural Moroccan Pozzolan

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Advances in Research in Geosciences, Geotechnical Engineering, and Environmental Science (GeoME 2023)

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Abstract

Cement is rapidly becoming among the extensively utilized materials. However, its production contributes to approximately 6–8% of the world’s CO2 emissions. Finding ways to reduce the carbon footprint of materials without increasing their cost is quite challenging. One technique to enhance sustainability is to produce alternative materials with low energy consumption, for instance geopolymer. The type of alkali activator, thermal curing environment, and the concentration of alkali hydroxide are only a few of the variables that may have an impact on the physical and mechanical characteristics of geopolymer. This study uses natural Moroccan pozzolan as an aluminosolicate source and sodium silicate as an alkaline solution to investigate the impacts of the curing conditions on the mechanical properties of the geopolymer binder. Natural Moroccan pozzolan is an easily available abandoned natural resource. Alkaline solution to binder ratio and Na2SiO3 to NaOH ratio were constant. Same pastes were produced following dissimilar curing conditions (curing at room temperature, in water at 20 ℃, oven curing 70 h at 60 ℃ and continuous curing at 200 ℃) and tested for compressive and flexural strengths assessed after 7 and 28 days. The test findings demonstrated a substantial relationship between compressive strength and curing conditions. By subjecting geopolymer to elevated curing temperatures, it is possible to achieve binders with exceptional strength properties due to the rapid geopolimerization.

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Authors and Affiliations

  1. Civil and Environment Engineering Laboratory (LGCE), Mohammadia Engineering School, Mohammed V University, Rabat, Morocco

    Khaoula Doughmi & Khadija Baba

Authors
  1. Khaoula Doughmi
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  2. Khadija Baba
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Correspondence to Khaoula Doughmi .

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Editors and Affiliations

  1. Higher School of Technology of Sale, Mohammed V University, Salé, Morocco

    Khadija Baba

  2. Mohammadia Engineering School, Mohammed V University of Rabat, Rabat, Morocco

    Latifa Ouadif

  3. Higher School of Technology of Sale, Mohammed V University, Salé, Morocco

    Abderrahman Nounah

  4. National School of Engineering of Tunis, University of Tunis El Manar, Tunis, Tunisia

    Mounir Bouassida

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Doughmi, K., Baba, K. (2023). Effect of Curing Conditions on the Mechanical Properties of Geopolymer Binder Based Natural Moroccan Pozzolan. In: Baba, K., Ouadif, L., Nounah, A., Bouassida, M. (eds) Advances in Research in Geosciences, Geotechnical Engineering, and Environmental Science. GeoME 2023. Springer Proceedings in Earth and Environmental Sciences. Springer, Cham. https://doi.org/10.1007/978-3-031-49345-4_22

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