Experimental Research on Mechanical Property and Environmental Safety of an Industrial Residue Waste Subgrade Material
In order to promote the sustainable use of oil shale residues, a novel subgrade material (SOF) composed of silty clay, oil shale ash residue, and fly ash was developed. The aim of this paper is to study the mechanical behavior and environmental impact of SOF, which is regarded as the safety assessme...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/1293214 |
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| author | Yangpeng Zhang Jianping Xiong Qinglin Li Jiuhui Cui |
| author_facet | Yangpeng Zhang Jianping Xiong Qinglin Li Jiuhui Cui |
| author_sort | Yangpeng Zhang |
| collection | DOAJ |
| description | In order to promote the sustainable use of oil shale residues, a novel subgrade material (SOF) composed of silty clay, oil shale ash residue, and fly ash was developed. The aim of this paper is to study the mechanical behavior and environmental impact of SOF, which is regarded as the safety assessment and prediction for the application of this novel material. To this purpose, the road performance, dynamic properties, and environment impact tests are conducted. In terms of the road performance, the test results of SOF exceed the standard requirement, especially for CBR (California bearing ratio), which can maintain good performance at bad conditions of low compaction degree and being soaked for a long time. The dynamic properties under cyclic loadings are better than most of original and stabilized soils. The shear strength parameters and the anti-damage mechanism are also discussed; research results show that the friction of SOF mostly contributes to shear strength under high stress conditions, while its cohesion tends to play a more important role under low stress conditions. According to the deformation variation, the accumulation settlement of SOF under vehicle loadings after several years is predicted, which is far lower than the limit of expressway and Grade I highway. Furthermore, the chemical stability and toxicity of SOF leachates are environmentally friendly, which are in line with the benchmarks of Class II surface water and Class III ground water. All the experimental results manifest that SOF used as subgrade filling has good application potential and safety. |
| format | Article |
| id | doaj-art-57dfe780b5f0448f9168e088b5c0a206 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-57dfe780b5f0448f9168e088b5c0a2062025-02-03T01:27:58ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/12932141293214Experimental Research on Mechanical Property and Environmental Safety of an Industrial Residue Waste Subgrade MaterialYangpeng Zhang0Jianping Xiong1Qinglin Li2Jiuhui Cui3Guangxi Transportation Science & Technology Group Co., Ltd., Nanning 5300007, ChinaGuangxi Transportation Science & Technology Group Co., Ltd., Nanning 5300007, ChinaCollege of Water and Architectural Engineering, Shihezi University, Shihezi 832003, ChinaChina Bluestar Chengrand Co., Ltd., Chengdu 610000, ChinaIn order to promote the sustainable use of oil shale residues, a novel subgrade material (SOF) composed of silty clay, oil shale ash residue, and fly ash was developed. The aim of this paper is to study the mechanical behavior and environmental impact of SOF, which is regarded as the safety assessment and prediction for the application of this novel material. To this purpose, the road performance, dynamic properties, and environment impact tests are conducted. In terms of the road performance, the test results of SOF exceed the standard requirement, especially for CBR (California bearing ratio), which can maintain good performance at bad conditions of low compaction degree and being soaked for a long time. The dynamic properties under cyclic loadings are better than most of original and stabilized soils. The shear strength parameters and the anti-damage mechanism are also discussed; research results show that the friction of SOF mostly contributes to shear strength under high stress conditions, while its cohesion tends to play a more important role under low stress conditions. According to the deformation variation, the accumulation settlement of SOF under vehicle loadings after several years is predicted, which is far lower than the limit of expressway and Grade I highway. Furthermore, the chemical stability and toxicity of SOF leachates are environmentally friendly, which are in line with the benchmarks of Class II surface water and Class III ground water. All the experimental results manifest that SOF used as subgrade filling has good application potential and safety.http://dx.doi.org/10.1155/2020/1293214 |
| spellingShingle | Yangpeng Zhang Jianping Xiong Qinglin Li Jiuhui Cui Experimental Research on Mechanical Property and Environmental Safety of an Industrial Residue Waste Subgrade Material Advances in Materials Science and Engineering |
| title | Experimental Research on Mechanical Property and Environmental Safety of an Industrial Residue Waste Subgrade Material |
| title_full | Experimental Research on Mechanical Property and Environmental Safety of an Industrial Residue Waste Subgrade Material |
| title_fullStr | Experimental Research on Mechanical Property and Environmental Safety of an Industrial Residue Waste Subgrade Material |
| title_full_unstemmed | Experimental Research on Mechanical Property and Environmental Safety of an Industrial Residue Waste Subgrade Material |
| title_short | Experimental Research on Mechanical Property and Environmental Safety of an Industrial Residue Waste Subgrade Material |
| title_sort | experimental research on mechanical property and environmental safety of an industrial residue waste subgrade material |
| url | http://dx.doi.org/10.1155/2020/1293214 |
| work_keys_str_mv | AT yangpengzhang experimentalresearchonmechanicalpropertyandenvironmentalsafetyofanindustrialresiduewastesubgradematerial AT jianpingxiong experimentalresearchonmechanicalpropertyandenvironmentalsafetyofanindustrialresiduewastesubgradematerial AT qinglinli experimentalresearchonmechanicalpropertyandenvironmentalsafetyofanindustrialresiduewastesubgradematerial AT jiuhuicui experimentalresearchonmechanicalpropertyandenvironmentalsafetyofanindustrialresiduewastesubgradematerial |