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The Effects of Natural Zeolite as Fly Ash Alternative on Frost Resistance and Shrinkage of Blended Cement Mortars

Author

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  • Tiana Milović

    (Department of Civil Engineering and Geodesy, Faculty of Technical Sciences, University of Novi Sad, 21000 Novi Sad, Serbia)

  • Slobodan Šupić

    (Department of Civil Engineering and Geodesy, Faculty of Technical Sciences, University of Novi Sad, 21000 Novi Sad, Serbia)

  • Mirjana Malešev

    (Department of Civil Engineering and Geodesy, Faculty of Technical Sciences, University of Novi Sad, 21000 Novi Sad, Serbia)

  • Vlastimir Radonjanin

    (Department of Civil Engineering and Geodesy, Faculty of Technical Sciences, University of Novi Sad, 21000 Novi Sad, Serbia)

Abstract

As the cement industry is responsible for 7% of the global CO 2 emissions, locally and abundantly available materials are vastly valorized, and their use is assuming a significant role in this domain. Over the last few decades, significant research in the development of supplementary cementitious materials (SCMs) derived from industrial wastes, such as fly ash (FA), has been conducted. However, facing environmental pressures, coal power plants are closing across the planet. Hence there is an urgent need to identify sustainable SCMs that can replace FA in the concrete industry. Furthermore, the usage of FA in cement-based composites does not often produce satisfactory results from the aspect of certain properties, such as freeze–thaw durability. Therefore, the application of natural zeolites (NZs) for these purposes has emerged as an area of interest in the civil engineering practice. This paper presents the results of experimental research regarding the influence of NZ, as a mineral admixture, on the basic physical and mechanical properties of cement mortars, with a focus on frost resistance and drying shrinkage. The amount of NZ was varied from 10 to 30% in relation to cement mass. The findings indicate that NZ positively influences the drying shrinkage reduction regardless of the replacement level, while the best results concerning frost resistance can be achieved in cement blends with 10% NZ.

Suggested Citation

  • Tiana Milović & Slobodan Šupić & Mirjana Malešev & Vlastimir Radonjanin, 2022. "The Effects of Natural Zeolite as Fly Ash Alternative on Frost Resistance and Shrinkage of Blended Cement Mortars," Sustainability, MDPI, vol. 14(5), pages 1-19, February.
  • Handle: RePEc:gam:jsusta:v:14:y:2022:i:5:p:2736-:d:759016
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    References listed on IDEAS

    as
    1. Afonso Miguel Solak & Antonio José Tenza-Abril & José Miguel Saval & Victoria Eugenia García-Vera, 2018. "Effects of Multiple Supplementary Cementitious Materials on Workability and Segregation Resistance of Lightweight Aggregate Concrete," Sustainability, MDPI, vol. 10(11), pages 1-14, November.
    2. Norzaireen M. Azmee & Nasir Shafiq, 2019. "Investigating the Impacts of Ultra-Fine Calcium Carbonate in High-Volume Fly Ash Concrete for Structural Rehabilitation for Sustainable Development," Sustainability, MDPI, vol. 11(17), pages 1-16, August.
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    Cited by:

    1. Miloš Kopić & Tiana Milović & Bojan Matić & Stanislav Jovanović & Milan Marinković, 2022. "Optimum Fluid Content in Pavement Cold In-Place Recycling Containing Waste Materials," Sustainability, MDPI, vol. 14(24), pages 1-16, December.

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