Effect of Red Gypsum as Partial Replacement Towards Physical Properties of Drywall Insulation Composite

Mohammad Al Nizar Khan Ahmad Khan, Mohd Aizudin Abd Aziz, Muhammad Ammar Nik Mu’Tasim, Mohd Azmir Arifin, Nur Amira Fatihah Bashari, Muhammad Auni Hairunnaja, Khairuddin Md Isa, Mohd Faizal Ali, Nicholas J. Miles

    Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

    Abstract

    Porosity plays a role in the production of gypsum-based composite, especially in gypsum board or drywall. Drywall production is associated with the need for excess water in dissolution and workability of the homogenous slurry. As the homogenous slurry hardened, the liberation or evaporation of excess water in the mixture as well as the entrapment of air bubbles during mixing and pouring process are known to produce composite with high porosity presence. The high porosity has negative impact on the physical aspect of the composite. Red Gypsum or RG is used in this study to produce a low-porosity gypsum composite with respect to water absorption, density, and weight. Results show that addition of RG at 10% is able to improve the density, porosity, water absorption as well structure morphology of the composite produced compared to control samples of 100% NG. However, the properties measured start to deteriorate at 20% replacement percentage of RG and higher. These improved physical attributes are paving way for RG to be used consistently as a secondary constituent in the production of drywall insulation composite, thus reducing the dependency on normal gypsum significantly.

    Original languageEnglish
    Title of host publicationProceedings of the 4th International Conference on Biomass Utilization and Sustainable Energy; ICoBiomasSE 2024 - Sustainability Through Net Zero Emissions, Circular Economy, and Academia-Industry Collaboration
    EditorsHui Lin Ong, Siti Jamilah Hanim Mohd Yusof, Noor Hasyierah Mohd Salleh, Khairul Farihan Kasim, Noor Shazliana Aizee Abidin
    PublisherSpringer Science and Business Media Deutschland GmbH
    Pages333-344
    Number of pages12
    ISBN (Print)9789819637843
    DOIs
    Publication statusPublished - 2025
    Event4th International Conference on Biomass Utilization and Sustainable Energy, ICoBiomasSE 2024, held in conjunction with the Global Trends in Engineering, Science, and Technology Congress, GTEST 2024 - Perlis, Malaysia
    Duration: 2 Sept 20243 Sept 2024

    Publication series

    NameGreen Energy and Technology
    ISSN (Print)1865-3529
    ISSN (Electronic)1865-3537

    Conference

    Conference4th International Conference on Biomass Utilization and Sustainable Energy, ICoBiomasSE 2024, held in conjunction with the Global Trends in Engineering, Science, and Technology Congress, GTEST 2024
    Country/TerritoryMalaysia
    CityPerlis
    Period2/09/243/09/24

    Keywords

    • Construction Materials
    • Insulative Composite
    • Natural Gypsum
    • Red Gypsum
    • Water Absorption

    ASJC Scopus subject areas

    • Renewable Energy, Sustainability and the Environment
    • Energy Engineering and Power Technology
    • Industrial and Manufacturing Engineering
    • Management, Monitoring, Policy and Law

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