Statistics Analysis on Soil Reduction Activity in Grizzly-under-Materials Discharged from Recycling Plant of Waste Asphalt Blocks
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- CABRERA Milkos Borges
- Graduate School of Environmental Studies, Tohoku University,
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- SATOMI Tomoaki
- Graduate School of Environmental Studies, Tohoku University,
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- TAKAHASHI Hiroshi
- Graduate School of Environmental Studies, Tohoku University,
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<p>Waste asphalt blocks from construction sites are usually processed in the recycling plants to be used as recycled asphalt aggregates. These materials are usually fed into the grizzly to remove the soils attached on their surfaces. At present, grizzly-under-materials (GUM) does not satisfy the required standard value for soil contents. In 2009, we proposed the equipment to remove the soils from GUM. This equipment was able to reduce the soil content in the GUM, but the efficiency was not so high. Then, in 2013, a process of redesigning this equipment was carried out; where a vibration device was added to reduce the pipe inclination angle and to increase the processing time of materials inside the apparatus. The equipment performance had an opposite behavior from 2009's experimental results to 2013's experiment results, when the water content in the GUM was changed from 3% to 5%. That is, it was necessary to analyze the main factors that influence on equipment performance. In this study, the experiments were carried out with changing the water contents. It was found through this research that soil reduction activity, using the screenless separation equipment not only depends on the soil particle distribution (% of clay and silt) contained in GUM and the moisture content in the soil when is mixed with GUM. Specific surface area and water absorption of GUM and temperature also have influence on the mentioned activity.</p>
収録刊行物
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- International Journal of the Society of Materials Engineering for Resources
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International Journal of the Society of Materials Engineering for Resources 23 (2), 209-214, 2018-09-30
日本素材物性学会
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詳細情報 詳細情報について
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- CRID
- 1390845702293761024
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- NII論文ID
- 130007722556
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- NII書誌ID
- AA1095475X
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- ISSN
- 18846629
- 13479725
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- NDL書誌ID
- 032469432
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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