Journal of Iranian Ceramic Society
Volume 19, Issue 3 (Journal of Iranian Ceramic Society 2023)
Jicers 2023, 19(3): 0-0 |
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Zaker shobeiri F, Moosavi A. Influence of chamotte particles on the microstructural and mechanical properties of geopolymer composites. Jicers 2023; 19 (3)
URL: http://jicers.ir/article-1-497-en.html
URL: http://jicers.ir/article-1-497-en.html
Islamic Azad University, Tehran & Department of Materials Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran , a-moosavi@srbiau.ac.ir
Abstract: (600 Views)
In this research, the microstructural and mechanical characteristics of metakaolin-based geopolymer 0.75 K2O.Al2O3.x SiO2.9 H2O with potassium silicate solution was investigated 28 days after the final curing. In order to explore the optimal composition, different molar ratios of silica to aluminum oxide (3, 3.25, 3.50, and 3.75) was considered. The mechanical test showed that the molar ratio of SiO2:Al2O3=3.25 resulted in the highest flexural strength of 11.24±0.25 MPa. The incorporation of 45 wt% chamotte particles (with grain size lower than 0.6 mm) as a reinforcement within the matrix of geopolymer caused more volume stability after final curing and increased the flexural strength to 20.15±1.07 MPa. The improvement in mechanical strength of the geopolymer composite can be due to the prevention of crack propagation by chamotte particles.
Type of Study: Research |
Subject:
Structural Oxide and Non-Oxide Ceramics
Received: 2024/05/11 | Accepted: 2024/07/6
Received: 2024/05/11 | Accepted: 2024/07/6
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