VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Use of recycled aggregate originating from plumbum and zinc mine site for concrete production [Elektronski vir]
    Turk, Tilen, magister inženir kemijskega inženirstva ...
    Over the last few years, increasing attention has been focused on reducing the carbon footprint of the building environment. Therefore, researchers are primarily focused on different new materials ... and a deeper understanding of concrete deterioration. The carbon footprint of the building environment can be partially reduced by using recycled materials. Recycled materials are defined as materials that can be reused by the industry, generally requiring a product to achieve characteristics the same as or better than the product it replaces. Mining sites are usually located in areas rich in metal ores. Before metal extraction, the ore is milled into smaller fractions. The particles enriched with metals are then chemically processed, while the non-rich part is an economically unattractive residue. The economically unattractive part can then be used in concrete production, even though it contains different heavy metals known to interact with cement hydration products and cause delayed strength development. This work, therefore, focuses on the use of heavy metal-contaminated aggregates in cementitious mixtures, examining the impact on the early strength (compressive and flexural) of five different heavy metal-polluted aggregate concentrations after 1, 3 and 7 days. Different fractions of aggregates have been characterised using X-Ray Diffraction (XRD). Free chloride content, as well as organic matter in the aggregate, were determined as well. Furthermore, solidification process of cementitious mixture was monitored by using ultrasound and validated by using temperature measurements during the cement hydration. Microstructure analysis was carried out using SEM-EDS.
    Vir: Approaching carbon neutrality in resilient civil infrastructure : 77th RILEM Annual Week and the 1st Interdisciplinary Symposium on Smart and Sustainable Infrastructures (ISSSI 2023) [Elektronski vir] : Sheraton Vancouver Wall Centre Vancouver, British Columbia, Canada, September 4 - 8, September, 2023 (Str. 427-433)
    Vrsta gradiva - prispevek na konferenci ; neleposlovje za odrasle
    Leto - 2023
    Jezik - angleški
    COBISS.SI-ID - 165778691

    Povezava(-e):

    https://www.rilemweek2023.com/

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