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  • Fibre reinforced alkali-activated rock wool [Elektronski vir]
    Pavlin, Majda, 1988- ; Horvat, Barbara, 1981- ; Ducman, Vilma
    Mineral wool, i.e. rock and glass wool, represents considerable challenge after its functional-time runs out due to its small density leading to large volume consumption during transport and in ... landfills where it usually ends. Because rock wool is mineralogically and chemically a promising precursor material for alkali-activation, it was milled from few centimetres-decimeters long fibres to micron-sized fibres. Since fibres in alkali-activated materials generally show an increase in mechanical strength, especially the bending strength, 1 m% of additional fibres (basalt, cellulose (2 types), glass, polypropylene, polyvinyl alcohol and steel fibres) was used in the alkali mixture, that was curred at 40 °C for 3 days. Time dependence of the mechanical strengths of alkali- activated materials with and without additional fibres was followed. Maximal increase of compressive and bending strength after 28 days was reached with polypropylene fibres, i.e. it was 20% and 30% higher than compressive and bending strength of alkali- activated material without additional fibres respectively.
    Source: 3rd International Conference on Technologies & Business Models for Circular Economy, [15th December 2020] [Elektronski vir] : conference proceedings (Str. 78-93)
    Type of material - conference contribution ; adult, serious
    Publish date - 2022
    Language - english
    COBISS.SI-ID - 111147267

    Link(s):

    https://press.um.si/index.php/ump/catalog/view/677/916/2289-1
    DiRROS - Digital repository of Slovenian research organizations
    DOI

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