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Characterization of Stone Waste Sludge and Preliminary Investigation on Green Materials Based on Traditional Lime Putty for Sustainable Construction

Author

Listed:
  • Albina Scioti

    (DICATECh Department, Polytechnic of Bari, Via Orabona, 4, 70125 Bari, Italy)

  • Graziella Bernardo

    (Department of European and Mediterranean Cultures, Basilicata University, 85100 Potenza, Italy)

  • Ippolita Mecca

    (D-ENG Department, Faculty of Engineering and Informatics, Pegaso Telematic University, 80132 Napoli, Italy)

  • Fabio Fatiguso

    (DICATECh Department, Polytechnic of Bari, Via Orabona, 4, 70125 Bari, Italy)

Abstract

Very large quantities of stone waste sludge are disposed in exhausted quarries and have a very low reuse rate to date. The paper considers the possibility of using these types of industrial waste in partial substitution of natural aggregates for the production of lime-based plasters. Traditional materials based on lime, the only material with a carbon neutrality life cycle, have considerable potential for use as components of green materials for plastering and finishing building surfaces in both new construction and historic heritage conservation. The paper presents the preliminary results of a research activity aimed at developing pre-packaged products based on Traditional Lime Putty (TLP) by partially replacing natural aggregates with Stone Waste Sludge (SWS), with a low rate of recovery from the Apricena limestone production district in Apulia. The mineralogical and chemical analysis carried out using XRD (X-Ray Diffraction), TG-DTA (Thermo Gravimetry-Differential Thermal Analysis), and hydrochloric acid attack test showed that the SWS consisted of 98.4 % CaCO 3 by mass. The particle sizes measured by laser diffraction technique are below 22.5 μm for the 92% mass of the sample. The high fineness of the stone waste was confirmed by the Blaine-specific surface method, which equals to 9273.79 cm 2 /gr. The behavior of three fresh mixtures for prepacked coarse plaster, fine plaster, and finishing plaster with 12.90%, 17.94%, and 18.90 by mass of SWS, respectively, was evaluated by spreading test and applicability tests on a perforated ceramic slab. The finishing plaster has the highest consistency value of 235 mm, while the fine plaster and the coarse plaster have values of 205 mm and 155 mm, respectively. The coarse plaster is suitable for use as base plaster (arriccio) or second layer rendering (tonachino) up to a thickness of approximately 1 cm. Both the fine plaster and finishing plasters can be used for the surfaces finishing with the application of layers of a few millimeters thick.

Suggested Citation

  • Albina Scioti & Graziella Bernardo & Ippolita Mecca & Fabio Fatiguso, 2024. "Characterization of Stone Waste Sludge and Preliminary Investigation on Green Materials Based on Traditional Lime Putty for Sustainable Construction," Sustainability, MDPI, vol. 16(21), pages 1-19, October.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:21:p:9173-:d:1504300
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    References listed on IDEAS

    as
    1. Ana Luiza Paes & Jonas Alexandre & Gustavo de Castro Xavier & Sérgio Neves Monteiro & Afonso Rangel Garcez de Azevedo, 2022. "Feasibility Analysis of Mortar Development with Ornamental Rock Waste for Coating Application by Mechanized Projection," Sustainability, MDPI, vol. 14(9), pages 1-16, April.
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