Geotechnical Response of Compost Biocover Columns under Freeze-Thaw Conditions
AbstractBiocovers are a promising technology for mitigating methane (CH4) emission from landfills. The geotechnical performance of the biocover material is one of the design criteria of biocovers. However, current understanding of the geotechnical behavior of biocovers under freeze-thaw conditions i...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Fall, Mamadou [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2015 |
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| Rechteinformationen: |
Nutzungsrecht: © 2015 American Society of Civil Engineers |
|---|
| Schlagwörter: |
|---|
| Übergeordnetes Werk: |
Enthalten in: Journal of cold regions engineering - New York, NY : ASCE, 1987, (2015) |
|---|---|
| Übergeordnetes Werk: |
year:2015 |
| Links: |
|---|
| DOI / URN: |
10.1061/(ASCE)CR.1943-5495.0000095 |
|---|
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OLC1957692251 |
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| 520 | |a AbstractBiocovers are a promising technology for mitigating methane (CH4) emission from landfills. The geotechnical performance of the biocover material is one of the design criteria of biocovers. However, current understanding of the geotechnical behavior of biocovers under freeze-thaw conditions is limited. In the present paper, the effects of freeze-thaw cycles (FTCs) on the geotechnical (thermal, hydraulic, and mechanical) properties of compost-based biocovers are investigated by column experiments. In the experiments, three columns are developed, prepared, and treated by a period of methane injection (0 FTCs) after 1 FTC and 2 FTCs in three respective stages. In addition, extensive laboratory testing is carried out on the biocover samples with regard to their thermal (thermal conductivity); hydraulic (hydraulic conductivity); and mechanical (compressibility and shear strength) and physical properties (e.g., grain size distribution, moisture content). The results show that the FTCs induced changes in a number of the geotechnical properties of the biocover. However, these changes are mostly located in the top layer of the biocover (0–15 cm). It was found that FTCs significantly increased the hydraulic conductivity of the top layer of the biocover, whereas they slightly decreased the thermal conductivity of this layer. As for mechanical and physical factors, the average grain size of the compost surface slightly decreased throughout the stages, while the friction angles of the bottom and middle layers of the compost-based biocover were not significantly affected. The results presented in this paper will contribute to better design of landfill biocovers in cold regions. | ||
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10.1061/(ASCE)CR.1943-5495.0000095 doi PQ20160617 (DE-627)OLC1957692251 (DE-599)GBVOLC1957692251 (PRQ)a985-f206c954590a27505509708519b36520459107d18c7761755d5de37851f32f1a0 (KEY)0159943720150000000000000000geotechnicalresponseofcompostbiocovercolumnsunderf DE-627 ger DE-627 rakwb eng 690 ZDB 50.99 bkl 56.11 bkl Fall, Mamadou verfasserin aut Geotechnical Response of Compost Biocover Columns under Freeze-Thaw Conditions 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier AbstractBiocovers are a promising technology for mitigating methane (CH4) emission from landfills. The geotechnical performance of the biocover material is one of the design criteria of biocovers. However, current understanding of the geotechnical behavior of biocovers under freeze-thaw conditions is limited. In the present paper, the effects of freeze-thaw cycles (FTCs) on the geotechnical (thermal, hydraulic, and mechanical) properties of compost-based biocovers are investigated by column experiments. In the experiments, three columns are developed, prepared, and treated by a period of methane injection (0 FTCs) after 1 FTC and 2 FTCs in three respective stages. In addition, extensive laboratory testing is carried out on the biocover samples with regard to their thermal (thermal conductivity); hydraulic (hydraulic conductivity); and mechanical (compressibility and shear strength) and physical properties (e.g., grain size distribution, moisture content). The results show that the FTCs induced changes in a number of the geotechnical properties of the biocover. However, these changes are mostly located in the top layer of the biocover (0–15 cm). It was found that FTCs significantly increased the hydraulic conductivity of the top layer of the biocover, whereas they slightly decreased the thermal conductivity of this layer. As for mechanical and physical factors, the average grain size of the compost surface slightly decreased throughout the stages, while the friction angles of the bottom and middle layers of the compost-based biocover were not significantly affected. The results presented in this paper will contribute to better design of landfill biocovers in cold regions. Nutzungsrecht: © 2015 American Society of Civil Engineers Technical Papers Moghbel, Farzad oth Enthalten in Journal of cold regions engineering New York, NY : ASCE, 1987 (2015) (DE-627)130412376 (DE-600)622957-8 (DE-576)015915395 0887-381X nnns year:2015 http://dx.doi.org/10.1061/(ASCE)CR.1943-5495.0000095 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC GBV_ILN_70 GBV_ILN_2006 GBV_ILN_4700 50.99 AVZ 56.11 AVZ AR 2015 |
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10.1061/(ASCE)CR.1943-5495.0000095 doi PQ20160617 (DE-627)OLC1957692251 (DE-599)GBVOLC1957692251 (PRQ)a985-f206c954590a27505509708519b36520459107d18c7761755d5de37851f32f1a0 (KEY)0159943720150000000000000000geotechnicalresponseofcompostbiocovercolumnsunderf DE-627 ger DE-627 rakwb eng 690 ZDB 50.99 bkl 56.11 bkl Fall, Mamadou verfasserin aut Geotechnical Response of Compost Biocover Columns under Freeze-Thaw Conditions 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier AbstractBiocovers are a promising technology for mitigating methane (CH4) emission from landfills. The geotechnical performance of the biocover material is one of the design criteria of biocovers. However, current understanding of the geotechnical behavior of biocovers under freeze-thaw conditions is limited. In the present paper, the effects of freeze-thaw cycles (FTCs) on the geotechnical (thermal, hydraulic, and mechanical) properties of compost-based biocovers are investigated by column experiments. In the experiments, three columns are developed, prepared, and treated by a period of methane injection (0 FTCs) after 1 FTC and 2 FTCs in three respective stages. In addition, extensive laboratory testing is carried out on the biocover samples with regard to their thermal (thermal conductivity); hydraulic (hydraulic conductivity); and mechanical (compressibility and shear strength) and physical properties (e.g., grain size distribution, moisture content). The results show that the FTCs induced changes in a number of the geotechnical properties of the biocover. However, these changes are mostly located in the top layer of the biocover (0–15 cm). It was found that FTCs significantly increased the hydraulic conductivity of the top layer of the biocover, whereas they slightly decreased the thermal conductivity of this layer. As for mechanical and physical factors, the average grain size of the compost surface slightly decreased throughout the stages, while the friction angles of the bottom and middle layers of the compost-based biocover were not significantly affected. The results presented in this paper will contribute to better design of landfill biocovers in cold regions. Nutzungsrecht: © 2015 American Society of Civil Engineers Technical Papers Moghbel, Farzad oth Enthalten in Journal of cold regions engineering New York, NY : ASCE, 1987 (2015) (DE-627)130412376 (DE-600)622957-8 (DE-576)015915395 0887-381X nnns year:2015 http://dx.doi.org/10.1061/(ASCE)CR.1943-5495.0000095 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC GBV_ILN_70 GBV_ILN_2006 GBV_ILN_4700 50.99 AVZ 56.11 AVZ AR 2015 |
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10.1061/(ASCE)CR.1943-5495.0000095 doi PQ20160617 (DE-627)OLC1957692251 (DE-599)GBVOLC1957692251 (PRQ)a985-f206c954590a27505509708519b36520459107d18c7761755d5de37851f32f1a0 (KEY)0159943720150000000000000000geotechnicalresponseofcompostbiocovercolumnsunderf DE-627 ger DE-627 rakwb eng 690 ZDB 50.99 bkl 56.11 bkl Fall, Mamadou verfasserin aut Geotechnical Response of Compost Biocover Columns under Freeze-Thaw Conditions 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier AbstractBiocovers are a promising technology for mitigating methane (CH4) emission from landfills. The geotechnical performance of the biocover material is one of the design criteria of biocovers. However, current understanding of the geotechnical behavior of biocovers under freeze-thaw conditions is limited. In the present paper, the effects of freeze-thaw cycles (FTCs) on the geotechnical (thermal, hydraulic, and mechanical) properties of compost-based biocovers are investigated by column experiments. In the experiments, three columns are developed, prepared, and treated by a period of methane injection (0 FTCs) after 1 FTC and 2 FTCs in three respective stages. In addition, extensive laboratory testing is carried out on the biocover samples with regard to their thermal (thermal conductivity); hydraulic (hydraulic conductivity); and mechanical (compressibility and shear strength) and physical properties (e.g., grain size distribution, moisture content). The results show that the FTCs induced changes in a number of the geotechnical properties of the biocover. However, these changes are mostly located in the top layer of the biocover (0–15 cm). It was found that FTCs significantly increased the hydraulic conductivity of the top layer of the biocover, whereas they slightly decreased the thermal conductivity of this layer. As for mechanical and physical factors, the average grain size of the compost surface slightly decreased throughout the stages, while the friction angles of the bottom and middle layers of the compost-based biocover were not significantly affected. The results presented in this paper will contribute to better design of landfill biocovers in cold regions. Nutzungsrecht: © 2015 American Society of Civil Engineers Technical Papers Moghbel, Farzad oth Enthalten in Journal of cold regions engineering New York, NY : ASCE, 1987 (2015) (DE-627)130412376 (DE-600)622957-8 (DE-576)015915395 0887-381X nnns year:2015 http://dx.doi.org/10.1061/(ASCE)CR.1943-5495.0000095 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC GBV_ILN_70 GBV_ILN_2006 GBV_ILN_4700 50.99 AVZ 56.11 AVZ AR 2015 |
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10.1061/(ASCE)CR.1943-5495.0000095 doi PQ20160617 (DE-627)OLC1957692251 (DE-599)GBVOLC1957692251 (PRQ)a985-f206c954590a27505509708519b36520459107d18c7761755d5de37851f32f1a0 (KEY)0159943720150000000000000000geotechnicalresponseofcompostbiocovercolumnsunderf DE-627 ger DE-627 rakwb eng 690 ZDB 50.99 bkl 56.11 bkl Fall, Mamadou verfasserin aut Geotechnical Response of Compost Biocover Columns under Freeze-Thaw Conditions 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier AbstractBiocovers are a promising technology for mitigating methane (CH4) emission from landfills. The geotechnical performance of the biocover material is one of the design criteria of biocovers. However, current understanding of the geotechnical behavior of biocovers under freeze-thaw conditions is limited. In the present paper, the effects of freeze-thaw cycles (FTCs) on the geotechnical (thermal, hydraulic, and mechanical) properties of compost-based biocovers are investigated by column experiments. In the experiments, three columns are developed, prepared, and treated by a period of methane injection (0 FTCs) after 1 FTC and 2 FTCs in three respective stages. In addition, extensive laboratory testing is carried out on the biocover samples with regard to their thermal (thermal conductivity); hydraulic (hydraulic conductivity); and mechanical (compressibility and shear strength) and physical properties (e.g., grain size distribution, moisture content). The results show that the FTCs induced changes in a number of the geotechnical properties of the biocover. However, these changes are mostly located in the top layer of the biocover (0–15 cm). It was found that FTCs significantly increased the hydraulic conductivity of the top layer of the biocover, whereas they slightly decreased the thermal conductivity of this layer. As for mechanical and physical factors, the average grain size of the compost surface slightly decreased throughout the stages, while the friction angles of the bottom and middle layers of the compost-based biocover were not significantly affected. The results presented in this paper will contribute to better design of landfill biocovers in cold regions. Nutzungsrecht: © 2015 American Society of Civil Engineers Technical Papers Moghbel, Farzad oth Enthalten in Journal of cold regions engineering New York, NY : ASCE, 1987 (2015) (DE-627)130412376 (DE-600)622957-8 (DE-576)015915395 0887-381X nnns year:2015 http://dx.doi.org/10.1061/(ASCE)CR.1943-5495.0000095 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC GBV_ILN_70 GBV_ILN_2006 GBV_ILN_4700 50.99 AVZ 56.11 AVZ AR 2015 |
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10.1061/(ASCE)CR.1943-5495.0000095 doi PQ20160617 (DE-627)OLC1957692251 (DE-599)GBVOLC1957692251 (PRQ)a985-f206c954590a27505509708519b36520459107d18c7761755d5de37851f32f1a0 (KEY)0159943720150000000000000000geotechnicalresponseofcompostbiocovercolumnsunderf DE-627 ger DE-627 rakwb eng 690 ZDB 50.99 bkl 56.11 bkl Fall, Mamadou verfasserin aut Geotechnical Response of Compost Biocover Columns under Freeze-Thaw Conditions 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier AbstractBiocovers are a promising technology for mitigating methane (CH4) emission from landfills. The geotechnical performance of the biocover material is one of the design criteria of biocovers. However, current understanding of the geotechnical behavior of biocovers under freeze-thaw conditions is limited. In the present paper, the effects of freeze-thaw cycles (FTCs) on the geotechnical (thermal, hydraulic, and mechanical) properties of compost-based biocovers are investigated by column experiments. In the experiments, three columns are developed, prepared, and treated by a period of methane injection (0 FTCs) after 1 FTC and 2 FTCs in three respective stages. In addition, extensive laboratory testing is carried out on the biocover samples with regard to their thermal (thermal conductivity); hydraulic (hydraulic conductivity); and mechanical (compressibility and shear strength) and physical properties (e.g., grain size distribution, moisture content). The results show that the FTCs induced changes in a number of the geotechnical properties of the biocover. However, these changes are mostly located in the top layer of the biocover (0–15 cm). It was found that FTCs significantly increased the hydraulic conductivity of the top layer of the biocover, whereas they slightly decreased the thermal conductivity of this layer. As for mechanical and physical factors, the average grain size of the compost surface slightly decreased throughout the stages, while the friction angles of the bottom and middle layers of the compost-based biocover were not significantly affected. The results presented in this paper will contribute to better design of landfill biocovers in cold regions. Nutzungsrecht: © 2015 American Society of Civil Engineers Technical Papers Moghbel, Farzad oth Enthalten in Journal of cold regions engineering New York, NY : ASCE, 1987 (2015) (DE-627)130412376 (DE-600)622957-8 (DE-576)015915395 0887-381X nnns year:2015 http://dx.doi.org/10.1061/(ASCE)CR.1943-5495.0000095 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC GBV_ILN_70 GBV_ILN_2006 GBV_ILN_4700 50.99 AVZ 56.11 AVZ AR 2015 |
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Journal of cold regions engineering |
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Geotechnical Response of Compost Biocover Columns under Freeze-Thaw Conditions |
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Geotechnical Response of Compost Biocover Columns under Freeze-Thaw Conditions |
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Fall, Mamadou |
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geotechnical response of compost biocover columns under freeze-thaw conditions |
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Geotechnical Response of Compost Biocover Columns under Freeze-Thaw Conditions |
| abstract |
AbstractBiocovers are a promising technology for mitigating methane (CH4) emission from landfills. The geotechnical performance of the biocover material is one of the design criteria of biocovers. However, current understanding of the geotechnical behavior of biocovers under freeze-thaw conditions is limited. In the present paper, the effects of freeze-thaw cycles (FTCs) on the geotechnical (thermal, hydraulic, and mechanical) properties of compost-based biocovers are investigated by column experiments. In the experiments, three columns are developed, prepared, and treated by a period of methane injection (0 FTCs) after 1 FTC and 2 FTCs in three respective stages. In addition, extensive laboratory testing is carried out on the biocover samples with regard to their thermal (thermal conductivity); hydraulic (hydraulic conductivity); and mechanical (compressibility and shear strength) and physical properties (e.g., grain size distribution, moisture content). The results show that the FTCs induced changes in a number of the geotechnical properties of the biocover. However, these changes are mostly located in the top layer of the biocover (0–15 cm). It was found that FTCs significantly increased the hydraulic conductivity of the top layer of the biocover, whereas they slightly decreased the thermal conductivity of this layer. As for mechanical and physical factors, the average grain size of the compost surface slightly decreased throughout the stages, while the friction angles of the bottom and middle layers of the compost-based biocover were not significantly affected. The results presented in this paper will contribute to better design of landfill biocovers in cold regions. |
| abstractGer |
AbstractBiocovers are a promising technology for mitigating methane (CH4) emission from landfills. The geotechnical performance of the biocover material is one of the design criteria of biocovers. However, current understanding of the geotechnical behavior of biocovers under freeze-thaw conditions is limited. In the present paper, the effects of freeze-thaw cycles (FTCs) on the geotechnical (thermal, hydraulic, and mechanical) properties of compost-based biocovers are investigated by column experiments. In the experiments, three columns are developed, prepared, and treated by a period of methane injection (0 FTCs) after 1 FTC and 2 FTCs in three respective stages. In addition, extensive laboratory testing is carried out on the biocover samples with regard to their thermal (thermal conductivity); hydraulic (hydraulic conductivity); and mechanical (compressibility and shear strength) and physical properties (e.g., grain size distribution, moisture content). The results show that the FTCs induced changes in a number of the geotechnical properties of the biocover. However, these changes are mostly located in the top layer of the biocover (0–15 cm). It was found that FTCs significantly increased the hydraulic conductivity of the top layer of the biocover, whereas they slightly decreased the thermal conductivity of this layer. As for mechanical and physical factors, the average grain size of the compost surface slightly decreased throughout the stages, while the friction angles of the bottom and middle layers of the compost-based biocover were not significantly affected. The results presented in this paper will contribute to better design of landfill biocovers in cold regions. |
| abstract_unstemmed |
AbstractBiocovers are a promising technology for mitigating methane (CH4) emission from landfills. The geotechnical performance of the biocover material is one of the design criteria of biocovers. However, current understanding of the geotechnical behavior of biocovers under freeze-thaw conditions is limited. In the present paper, the effects of freeze-thaw cycles (FTCs) on the geotechnical (thermal, hydraulic, and mechanical) properties of compost-based biocovers are investigated by column experiments. In the experiments, three columns are developed, prepared, and treated by a period of methane injection (0 FTCs) after 1 FTC and 2 FTCs in three respective stages. In addition, extensive laboratory testing is carried out on the biocover samples with regard to their thermal (thermal conductivity); hydraulic (hydraulic conductivity); and mechanical (compressibility and shear strength) and physical properties (e.g., grain size distribution, moisture content). The results show that the FTCs induced changes in a number of the geotechnical properties of the biocover. However, these changes are mostly located in the top layer of the biocover (0–15 cm). It was found that FTCs significantly increased the hydraulic conductivity of the top layer of the biocover, whereas they slightly decreased the thermal conductivity of this layer. As for mechanical and physical factors, the average grain size of the compost surface slightly decreased throughout the stages, while the friction angles of the bottom and middle layers of the compost-based biocover were not significantly affected. The results presented in this paper will contribute to better design of landfill biocovers in cold regions. |
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| title_short |
Geotechnical Response of Compost Biocover Columns under Freeze-Thaw Conditions |
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http://dx.doi.org/10.1061/(ASCE)CR.1943-5495.0000095 |
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