Economic and Environmental Evaluation and Optimal Ratio of Natural and Recycled Aggregate Production
Steady increase in overexploitation of stone quarries, generation of construction and demolition waste, and costs of preparing extra landfill space have become environmental and waste management challenges in metropolises. In this paper, aggregate production is studied in two scenarios: scenario 1 r...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/7458285 |
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| author | Milad Ghanbari Armin Monir Abbasi Mehdi Ravanshadnia |
| author_facet | Milad Ghanbari Armin Monir Abbasi Mehdi Ravanshadnia |
| author_sort | Milad Ghanbari |
| collection | DOAJ |
| description | Steady increase in overexploitation of stone quarries, generation of construction and demolition waste, and costs of preparing extra landfill space have become environmental and waste management challenges in metropolises. In this paper, aggregate production is studied in two scenarios: scenario 1 representing the production of natural aggregates (NA) and scenario 2 representing the production of recycled aggregates (RA). This study consists of two parts. In the first part, the objective is the environmental assessment (energy consumption and CO2 emission) and economic (cost) evaluation of these two scenarios, which is pursued by life-cycle assessment (LCA) method. In the second part, the results of the first part are used to estimate the optimal combination of production of NA and RA and thereby find an optimal solution (scenario) for a more eco-friendly aggregate production. The defined formulas and relationship are used to develop a model. The results of model validation show that the optimal ratio, in optimal scenario, is 50%. The results show that, compared to scenario 1, optimal scenario improves the energy consumption, CO2 emissions, and production cost by, respectively, 30%, 36%, and 31%, which demonstrate the effectiveness of this optimization. |
| format | Article |
| id | doaj-art-274bf16c9937491bb1fdd0cbd58ea570 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-274bf16c9937491bb1fdd0cbd58ea5702025-02-03T01:23:08ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/74582857458285Economic and Environmental Evaluation and Optimal Ratio of Natural and Recycled Aggregate ProductionMilad Ghanbari0Armin Monir Abbasi1Mehdi Ravanshadnia2Department of Construction Engineering and Management, Science and Research Branch, Islamic Azad University, Tehran, IranDepartment of Civil Engineering, Payame Noor University, Tehran, IranDepartment of Construction Engineering and Management, Science and Research Branch, Islamic Azad University, Tehran, IranSteady increase in overexploitation of stone quarries, generation of construction and demolition waste, and costs of preparing extra landfill space have become environmental and waste management challenges in metropolises. In this paper, aggregate production is studied in two scenarios: scenario 1 representing the production of natural aggregates (NA) and scenario 2 representing the production of recycled aggregates (RA). This study consists of two parts. In the first part, the objective is the environmental assessment (energy consumption and CO2 emission) and economic (cost) evaluation of these two scenarios, which is pursued by life-cycle assessment (LCA) method. In the second part, the results of the first part are used to estimate the optimal combination of production of NA and RA and thereby find an optimal solution (scenario) for a more eco-friendly aggregate production. The defined formulas and relationship are used to develop a model. The results of model validation show that the optimal ratio, in optimal scenario, is 50%. The results show that, compared to scenario 1, optimal scenario improves the energy consumption, CO2 emissions, and production cost by, respectively, 30%, 36%, and 31%, which demonstrate the effectiveness of this optimization.http://dx.doi.org/10.1155/2017/7458285 |
| spellingShingle | Milad Ghanbari Armin Monir Abbasi Mehdi Ravanshadnia Economic and Environmental Evaluation and Optimal Ratio of Natural and Recycled Aggregate Production Advances in Materials Science and Engineering |
| title | Economic and Environmental Evaluation and Optimal Ratio of Natural and Recycled Aggregate Production |
| title_full | Economic and Environmental Evaluation and Optimal Ratio of Natural and Recycled Aggregate Production |
| title_fullStr | Economic and Environmental Evaluation and Optimal Ratio of Natural and Recycled Aggregate Production |
| title_full_unstemmed | Economic and Environmental Evaluation and Optimal Ratio of Natural and Recycled Aggregate Production |
| title_short | Economic and Environmental Evaluation and Optimal Ratio of Natural and Recycled Aggregate Production |
| title_sort | economic and environmental evaluation and optimal ratio of natural and recycled aggregate production |
| url | http://dx.doi.org/10.1155/2017/7458285 |
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