TY - GEN
T1 - Effect of Red Gypsum Replacement on Water Absorption and Density in Gypsum Board Composites at Room Temperature
AU - Ahmad Khan, Mohammad Al Nizar Khan
AU - Abd Aziz, Mohd Aizudin
AU - Nik Mu’Tasim, Muhammad Ammar
AU - Arifin, Mohd Azmir
AU - Bashari, Nur Amira Fatihah
AU - Hairunnaja, Muhammad Auni
AU - Ali, Mohd Faizal
AU - Md Isa, Khairuddin
AU - Miles, Nicholas J.
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.
PY - 2025
Y1 - 2025
N2 - The paper investigates the performance of red gypsum (RG) as a partial replacement for natural gypsum (NG) in insulative gypsum composites. Five batches of samples with varying RG replacement levels (0–40%) were prepared with a constant water-to-binder ratio of 1.2 and cured at ambient indoor temperature. Water absorption (Wa) and capillary absorption (Wc) were calculated to assess the porosity of the composites. Additionally, density measurements were conducted to understand the effect of RG on particle arrangement within the composites. The results indicate that an optimal 10% RG replacement yields the lowest Wa and Wc values (63.5% and 59.3%, respectively) and increases density to 1251.3 kg/m3. This improvement in particle arrangement and porosity resistance suggests that a small fraction of RG addition at 10% enhances composite quality. However, higher percentages of RG lead to decreased density and increased porosity, suggesting that RG primarily acts as a filler and does not participate in the hardening process. These findings suggest that RG can be partially used with NG in gypsum composites, providing an environmentally friendly alternative for managing RG waste in landfills and improving the performance of gypsum boards. Future research could further explore the mechanical properties and long-term performance of RG replacement composites.
AB - The paper investigates the performance of red gypsum (RG) as a partial replacement for natural gypsum (NG) in insulative gypsum composites. Five batches of samples with varying RG replacement levels (0–40%) were prepared with a constant water-to-binder ratio of 1.2 and cured at ambient indoor temperature. Water absorption (Wa) and capillary absorption (Wc) were calculated to assess the porosity of the composites. Additionally, density measurements were conducted to understand the effect of RG on particle arrangement within the composites. The results indicate that an optimal 10% RG replacement yields the lowest Wa and Wc values (63.5% and 59.3%, respectively) and increases density to 1251.3 kg/m3. This improvement in particle arrangement and porosity resistance suggests that a small fraction of RG addition at 10% enhances composite quality. However, higher percentages of RG lead to decreased density and increased porosity, suggesting that RG primarily acts as a filler and does not participate in the hardening process. These findings suggest that RG can be partially used with NG in gypsum composites, providing an environmentally friendly alternative for managing RG waste in landfills and improving the performance of gypsum boards. Future research could further explore the mechanical properties and long-term performance of RG replacement composites.
KW - Construction materials
KW - Insulative composite
KW - Natural gypsum
KW - Red gypsum
KW - Water absorption
UR - https://www.scopus.com/pages/publications/105009835347
U2 - 10.1007/978-981-96-3785-0_26
DO - 10.1007/978-981-96-3785-0_26
M3 - Conference contribution
AN - SCOPUS:105009835347
SN - 9789819637843
T3 - Green Energy and Technology
SP - 323
EP - 332
BT - Proceedings of the 4th International Conference on Biomass Utilization and Sustainable Energy; ICoBiomasSE 2024 - Sustainability Through Net Zero Emissions, Circular Economy, and Academia-Industry Collaboration
A2 - Ong, Hui Lin
A2 - Mohd Yusof, Siti Jamilah Hanim
A2 - Mohd Salleh, Noor Hasyierah
A2 - Kasim, Khairul Farihan
A2 - Abidin, Noor Shazliana Aizee
PB - Springer Science and Business Media Deutschland GmbH
T2 - 4th 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
Y2 - 2 September 2024 through 3 September 2024
ER -
