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Fast Setting Binders for Application in 3D Printing of Bio-Based Building Materials

Author

Listed:
  • Maris Sinka

    (Institute of Materials and Structures, Faculty of Civil Engineering, Riga Technical University, LV-1048 Riga, Latvia)

  • Jelizaveta Zorica

    (Institute of Materials and Structures, Faculty of Civil Engineering, Riga Technical University, LV-1048 Riga, Latvia)

  • Diana Bajare

    (Institute of Materials and Structures, Faculty of Civil Engineering, Riga Technical University, LV-1048 Riga, Latvia)

  • Genadijs Sahmenko

    (Institute of Materials and Structures, Faculty of Civil Engineering, Riga Technical University, LV-1048 Riga, Latvia)

  • Aleksandrs Korjakins

    (Institute of Materials and Structures, Faculty of Civil Engineering, Riga Technical University, LV-1048 Riga, Latvia)

Abstract

The construction industry is one of the largest emitters of CO 2 because the production of traditional building materials is highly energy-intensive and uses considerable amounts of raw materials. This research aims to decrease the negative environmental impact of the construction industry by providing biocomposites with a low environmental impact due to their bio-based components and efficient use of the materials through 3D printing. Agricultural waste products—hemp shives—are used in these materials as a filler together with three different types of fast-setting binders—magnesium, calcium sulphoaluminate (CSA) and those that are gypsum-based. The study determines the setting time and compressive strength of these binders, as well as the formation of biocomposites of different densities for different applications; extrusion tests and preliminary life cycle assessment (LCA) are also performed. Results show that biocomposites with hemp shives and fast setting binders have a possible application in 3D printing due to their shape stability and buildability, as well as relatively high compressive strength, which allows for load-bearing use at high densities and thermal insulation use at low densities, although printability at low binder content remains a significant challenge. Preliminary LCA results show that CSA and gypsum binders have the lowest environmental impact from the binders considered.

Suggested Citation

  • Maris Sinka & Jelizaveta Zorica & Diana Bajare & Genadijs Sahmenko & Aleksandrs Korjakins, 2020. "Fast Setting Binders for Application in 3D Printing of Bio-Based Building Materials," Sustainability, MDPI, vol. 12(21), pages 1-12, October.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:21:p:8838-:d:434114
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    References listed on IDEAS

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    1. Song, Dan & Yang, Jin & Chen, Bin & Hayat, Tasawar & Alsaedi, Ahmed, 2016. "Life-cycle environmental impact analysis of a typical cement production chain," Applied Energy, Elsevier, vol. 164(C), pages 916-923.
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    Cited by:

    1. Hadeer Abdalla & Kazi Parvez Fattah & Mohamed Abdallah & Adil K. Tamimi, 2021. "Environmental Footprint and Economics of a Full-Scale 3D-Printed House," Sustainability, MDPI, vol. 13(21), pages 1-19, October.

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