The use of aluminum slag waste in the preparation of roof tiles
Aluminum slag waste generated from the smelting process of bauxite was used to prepare roof tiles samples. Clay was substituted by slag waste in percentages reaching 40% in the basic mix and the plasticity of the obtained mud was determined. This was followed by pressing the mud in steel molds and d...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2021-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ac3bf7 |
| _version_ | 1797746760068628480 |
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| author | M M Ahmed M F Abadir Ayman Yousef K A M El-Naggar |
| author_facet | M M Ahmed M F Abadir Ayman Yousef K A M El-Naggar |
| author_sort | M M Ahmed |
| collection | DOAJ |
| description | Aluminum slag waste generated from the smelting process of bauxite was used to prepare roof tiles samples. Clay was substituted by slag waste in percentages reaching 40% in the basic mix and the plasticity of the obtained mud was determined. This was followed by pressing the mud in steel molds and drying. The effect of waste addition on drying shrinkage was subsequently assessed. Firing of the green bodies was carried out at three temperatures (900, 1000 and 1100 °C) and hour soaking at each temperature. Fired roof tile properties improved on increasing the percentage of alumina sludge and firing temperature possibly because of the presence of high amounts of fluxing oxides in aluminum slag. This caused a drop in porosity that increased the mechanical strength of tiles. The results showed that the substitution of clay by 40% waste and firing at 1100 °C resulted in products conforming to ASTM C-1167 for clay type roof tiles. Cold water absorption dropped to 12%, below the maximum permissible limit of 15%, the value of Saturation Coefficient was 0.83, below the 0.86 limit and the obtained breaking strength of 3370N significantly exceeded the minimum requirement of 890N. |
| first_indexed | 2024-03-12T15:41:28Z |
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| id | doaj.art-b2d8b150f0034c76b0637b564f00e2f3 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:41:28Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-b2d8b150f0034c76b0637b564f00e2f32023-08-09T15:58:15ZengIOP PublishingMaterials Research Express2053-15912021-01-0181212550110.1088/2053-1591/ac3bf7The use of aluminum slag waste in the preparation of roof tilesM M Ahmed0M F Abadir1Ayman Yousef2https://orcid.org/0000-0002-2372-5261K A M El-Naggar3Department of Mathematics and Physics Engineering, Faculty of Engineering at Mataria, Helwan University , Cairo 11718, EgyptDepartment of Chemical Engineering, Faculty of Engineering, Cairo University , Cairo, EgyptDepartment of Mathematics and Physics Engineering, Faculty of Engineering at Mataria, Helwan University , Cairo 11718, EgyptDepartment of Chemical Engineering, Egyptian Academy for Engineering and Advanced Technology, Cairo, EgyptAluminum slag waste generated from the smelting process of bauxite was used to prepare roof tiles samples. Clay was substituted by slag waste in percentages reaching 40% in the basic mix and the plasticity of the obtained mud was determined. This was followed by pressing the mud in steel molds and drying. The effect of waste addition on drying shrinkage was subsequently assessed. Firing of the green bodies was carried out at three temperatures (900, 1000 and 1100 °C) and hour soaking at each temperature. Fired roof tile properties improved on increasing the percentage of alumina sludge and firing temperature possibly because of the presence of high amounts of fluxing oxides in aluminum slag. This caused a drop in porosity that increased the mechanical strength of tiles. The results showed that the substitution of clay by 40% waste and firing at 1100 °C resulted in products conforming to ASTM C-1167 for clay type roof tiles. Cold water absorption dropped to 12%, below the maximum permissible limit of 15%, the value of Saturation Coefficient was 0.83, below the 0.86 limit and the obtained breaking strength of 3370N significantly exceeded the minimum requirement of 890N.https://doi.org/10.1088/2053-1591/ac3bf7clay roof tilesaluminum slagcold water absorptionsaturation coefficientmechanical strength |
| spellingShingle | M M Ahmed M F Abadir Ayman Yousef K A M El-Naggar The use of aluminum slag waste in the preparation of roof tiles Materials Research Express clay roof tiles aluminum slag cold water absorption saturation coefficient mechanical strength |
| title | The use of aluminum slag waste in the preparation of roof tiles |
| title_full | The use of aluminum slag waste in the preparation of roof tiles |
| title_fullStr | The use of aluminum slag waste in the preparation of roof tiles |
| title_full_unstemmed | The use of aluminum slag waste in the preparation of roof tiles |
| title_short | The use of aluminum slag waste in the preparation of roof tiles |
| title_sort | use of aluminum slag waste in the preparation of roof tiles |
| topic | clay roof tiles aluminum slag cold water absorption saturation coefficient mechanical strength |
| url | https://doi.org/10.1088/2053-1591/ac3bf7 |
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