Valorisation of waste glass in eco-friendly clay brick: influence on physico-mechanical properties and water absorption
Clay bricks are widely used as building material all around the world. Natural clay is experiencing a constant reduction due to its continual use in the manufacturing of clay bricks. The depletion of clay resources has become a global issue, prompting many countries to limit the use of natural clay....
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | en |
| Published: |
Universiti Teknologi MARA Shah Alam
2025
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| Subjects: | |
| Online Access: | https://ir.uitm.edu.my/id/eprint/129121/1/129121.pdf https://ir.uitm.edu.my/id/eprint/129121/ https://journal.uitm.edu.my/ojs/index.php/MJCET |
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| Summary: | Clay bricks are widely used as building material all around the world. Natural clay is experiencing a constant reduction due to its continual use in the manufacturing of clay bricks. The depletion of clay resources has become a global issue, prompting many countries to limit the use of natural clay. This research study investigates the effect of waste glass addition on the physical-mechanical and water absorption properties of eco-friendly clay bricks, incorporating 0, 5, 10, 15, and 20 wt% of waste glass into the clay. The temperature of 900°C was used for the firing process of clay bricks. Compressive strength, linear shrinkage, bulk density, apparent porosity and water absorption of the eco-friendly clay bricks were tested. Incorporating 20 wt% waste glass into clay bricks improved mechanical and physical properties: compressive strength (+29.4%), bulk density (+11.3%), apparent porosity (−16.0%), and water absorption (−24.6%). The digital micrographs demonstrated a reduction in the porosity with the addition of waste glass. This study revealed that the addition of waste glass induced the formation of a glass-phase fused bond with the body of clay when subjected to high temperature. Waste glass can be added to clay brick as a partial substitute for natural clay, improving the physical-mechanical and water absorption properties of clay bricks. |
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