Recycling Marble Waste from Afghan Mining Sites as a Replacement for Cement and Sand
The marble industry in Afghanistan generates significant waste due to a lack of skilled labor and advanced machinery, which is often discarded in landfills. Previous studies suggest that marble waste can be utilized in construction, particularly in cement-based structures. This research investigates...
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MDPI AG
2025-01-01
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| Online Access: | https://www.mdpi.com/2075-5309/15/2/164 |
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| author | Mohammad Rafi Rafi Safiullah Omary Amanullah Faqiri Elhem Ghorbel |
| author_facet | Mohammad Rafi Rafi Safiullah Omary Amanullah Faqiri Elhem Ghorbel |
| author_sort | Mohammad Rafi Rafi |
| collection | DOAJ |
| description | The marble industry in Afghanistan generates significant waste due to a lack of skilled labor and advanced machinery, which is often discarded in landfills. Previous studies suggest that marble waste can be utilized in construction, particularly in cement-based structures. This research investigates using marble waste in concrete as a replacement for cement and sand to address environmental concerns and promote sustainability. A comparative study replaced marble waste with a calcareous filler from Omya SAS. The marble waste, collected from a mining site in Nangarhar, Afghanistan, consisted of 29% particles smaller than 63 μm and 71% sand particles. The waste marble (WM) was added to concrete as a replacement for cement and sand at 3.5%, 4%, and 4.5% by volume. Limestone filler (LF) replaced only cement in the concrete mix. The reference concrete mix aimed for a C25/30 strength. The results showed slight improvements in concrete workability with increasing waste marble content. The optimal WM dosage was 4%, which led to a 9% reduction in compressive strength and a 7% drop in splitting tensile strength. However, this dosage reduced concrete density, improving transfer properties and resulting in cheaper, lighter concrete. The 4% WM dosage corresponds to 7.5% cement and 12% sand replacement. |
| format | Article |
| id | doaj-art-72163e395f244416a2a5577458d938f0 |
| institution | Kabale University |
| issn | 2075-5309 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-72163e395f244416a2a5577458d938f02025-01-24T13:26:01ZengMDPI AGBuildings2075-53092025-01-0115216410.3390/buildings15020164Recycling Marble Waste from Afghan Mining Sites as a Replacement for Cement and SandMohammad Rafi Rafi0Safiullah Omary1Amanullah Faqiri2Elhem Ghorbel3Department of Civil and Industrial Construction, Kabul Polytechnic University, Kabul 1001, AfghanistanICube, Department of Civil Engineering, INSA Strasbourg University, 67000 Strasbourg, FranceDepartment of Civil and Industrial Construction, Kabul Polytechnic University, Kabul 1001, AfghanistanL2MGC, Department of Civil Engineering, University de Cergy-Paris, 95000 Cergy-Pontoise, FranceThe marble industry in Afghanistan generates significant waste due to a lack of skilled labor and advanced machinery, which is often discarded in landfills. Previous studies suggest that marble waste can be utilized in construction, particularly in cement-based structures. This research investigates using marble waste in concrete as a replacement for cement and sand to address environmental concerns and promote sustainability. A comparative study replaced marble waste with a calcareous filler from Omya SAS. The marble waste, collected from a mining site in Nangarhar, Afghanistan, consisted of 29% particles smaller than 63 μm and 71% sand particles. The waste marble (WM) was added to concrete as a replacement for cement and sand at 3.5%, 4%, and 4.5% by volume. Limestone filler (LF) replaced only cement in the concrete mix. The reference concrete mix aimed for a C25/30 strength. The results showed slight improvements in concrete workability with increasing waste marble content. The optimal WM dosage was 4%, which led to a 9% reduction in compressive strength and a 7% drop in splitting tensile strength. However, this dosage reduced concrete density, improving transfer properties and resulting in cheaper, lighter concrete. The 4% WM dosage corresponds to 7.5% cement and 12% sand replacement.https://www.mdpi.com/2075-5309/15/2/164waste marble (WM)limestone fillers (LF)GHORI cementmechanical propertiesgas permeabilityDigital Image Correlation (DIC) |
| spellingShingle | Mohammad Rafi Rafi Safiullah Omary Amanullah Faqiri Elhem Ghorbel Recycling Marble Waste from Afghan Mining Sites as a Replacement for Cement and Sand Buildings waste marble (WM) limestone fillers (LF) GHORI cement mechanical properties gas permeability Digital Image Correlation (DIC) |
| title | Recycling Marble Waste from Afghan Mining Sites as a Replacement for Cement and Sand |
| title_full | Recycling Marble Waste from Afghan Mining Sites as a Replacement for Cement and Sand |
| title_fullStr | Recycling Marble Waste from Afghan Mining Sites as a Replacement for Cement and Sand |
| title_full_unstemmed | Recycling Marble Waste from Afghan Mining Sites as a Replacement for Cement and Sand |
| title_short | Recycling Marble Waste from Afghan Mining Sites as a Replacement for Cement and Sand |
| title_sort | recycling marble waste from afghan mining sites as a replacement for cement and sand |
| topic | waste marble (WM) limestone fillers (LF) GHORI cement mechanical properties gas permeability Digital Image Correlation (DIC) |
| url | https://www.mdpi.com/2075-5309/15/2/164 |
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