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Assessment of Plant Origin By-Products as Lightweight Aggregates for Bio-Composite Bounded by Starch Binder

Author

Listed:
  • Laura Vitola

    (Institute of Materials and Structures, Riga Technical University, Kalku 1, LV-1658 Riga, Latvia)

  • Stanislavs Gendelis

    (Institute of Numerical Modelling, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia)

  • Maris Sinka

    (Institute of Materials and Structures, Riga Technical University, Kalku 1, LV-1658 Riga, Latvia)

  • Ina Pundiene

    (Institute of Materials and Structures, Riga Technical University, Kalku 1, LV-1658 Riga, Latvia
    Institute of Building Materials, Vilnius Gediminas Technical University, Sauletekio av. 11, LT-10223 Vilnius, Lithuania)

  • Diana Bajare

    (Institute of Numerical Modelling, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia)

Abstract

Thermal insulation bio-composites made of plant origin by-products as bio-aggregates are one of the ways to decrease the impact of the building and construction sector on CO 2 emissions. In this study, three bio-aggregates were analysed for their potential use in the production of bio-composites with potato starch binder. Technologically important properties, such as particle size, shape and compacted bulk density, as well as properties of the resulting bio-composites were identified. The main characteristics of the aggregates are relatively similar: density of 80–100 kg/m 3 , thermal conductivity of 0.042–0.045 W/m∙K, specific heat capacity of 1240–1330 J/g∙K, kinetic water absorption from 456–584%. This leads to similar basic properties of the produced bio-composites: density around 200 kg/m 3 , thermal conductivity 0.053–0.062 W/m∙K, specific heat capacity 1250–1450 J/kg∙K, with a difference in compressive strength ranging from 0.2 to 0.8 MPa. Created starch binder and agricultural by-product filler materials could be used in the production of boards where strength is required, for example, envelope and wind barrier boards, and thermal insulation boards under floors.

Suggested Citation

  • Laura Vitola & Stanislavs Gendelis & Maris Sinka & Ina Pundiene & Diana Bajare, 2022. "Assessment of Plant Origin By-Products as Lightweight Aggregates for Bio-Composite Bounded by Starch Binder," Energies, MDPI, vol. 15(15), pages 1-23, July.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:15:p:5330-:d:869414
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    Cited by:

    1. Sykorova, Veronika & Jezerska, Lucie & Sassmanova, Veronika & Honus, Stanislav & Peikertova, Pavlina & Kielar, Jan & Zidek, Martin, 2024. "Biomass pellets with organic binders - before and after torrefaction," Renewable Energy, Elsevier, vol. 221(C).

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