Hygroscopic Performance of Sulphate-Based MgO Construction Boards

Ayodele Olofinjana; Nicholas Jays; David Young; Jitendra Mata; Rezwanul Haque

doi:10.1007/978-3-030-90532-3_30

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Hygroscopic Performance of Sulphate-Based MgO Construction Boards

Conference paper

Peer reviewed

Hygroscopic Performance of Sulphate-Based MgO Construction Boards

Ayodele Olofinjana, Nicholas Jays, David Young, Jitendra Mata and Rezwanul Haque

Advances in Manufacturing Processes, Intelligent Methods and Systems in Production Engineering, pp.390-401

International Conference on Intelligent Systems in Production Engineering and Maintenance, 3rd (Liverpool, United Kingdom, 07-Jun-2021 - 09-Jun-2021)

Lecture Notes in Networks and Systems, 335, Springer

2022

DOI: https://doi.org/10.1007/978-3-030-90532-3_30

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Abstract

magnesium oxide board

magnesium oxysulphate (MOS)

hygroscopic performance

Magnesium oxide (MgO) construction boards are currently being used to replace fibre cement boards in various construction applications. This include usage in external claddings where reports of hygroscopic degradation were linked to presence of residual chlorides originating from the manufacturing process. The industry has responded with new products that are being marketed as Magnesium Oxysulphate (MOS) boards that are still essentially MgO based but are manufactured from non-chloride precursor. In this paper the hygroscopic performance of the new MOS based MgO is compared with some other commercially Chloride containing samples. It is shown that MOS based samples exhibited lower water absorption comparable to fibre cement boards. No evidence of chloride in the new MOS based MgO boards was found by Energy Dispersive Spectroscopy (EDS). Small angle neutron scattering (SANS), of dry samples and hydrated samples using deuterated water and normal water showed that the better hygroscopic properties of MOS based MgO board was not related to structural morphological modification and are more likely due to the absence of residual chloride in the new generation MgO boards.

Details

Title: Hygroscopic Performance of Sulphate-Based MgO Construction Boards
Authors: Ayodele Olofinjana (Corresponding Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
Nicholas Jays (Author) - University of the Sunshine Coast, Queensland
David Young (Author) - Charles Darwin University
Jitendra Mata (Author) - Australian Nuclear Science and Technology Organisation
Rezwanul Haque (Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
Contributors: Andrew Batako (Editor) - Liverpool John Moores University
Anna Burduk (Editor)
Kanisius Karyono (Editor) - Liverpool John Moores University
Xun Chen (Editor) - Liverpool John Moores University
Ryszard Wyczółkowski (Editor) - Silesian University of Technology
Publication details: Advances in Manufacturing Processes, Intelligent Methods and Systems in Production Engineering, pp.390-401
Conference details: International Conference on Intelligent Systems in Production Engineering and Maintenance, 3rd (Liverpool, United Kingdom, 07-Jun-2021 - 09-Jun-2021)
Series: Lecture Notes in Networks and Systems; 335
Publisher: Springer
DOI: 10.1007/978-3-030-90532-3_30
ISSN: 2367-3389
ISBN: 9783030905323
Organisation Unit: University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99629640502621
Output Type: Conference paper

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