Two unbound granular materials stiffness analysis with staged repeated load CBR test
Design methods of flexible pavements in many countries are based on linear elastic behaviour model for Unbound Granular Materials (UGM). In this context, parameters required to characterize an UGM in structural analysis of pavements are Stiffness modulus and Poisson ratio (E and ν). This paper prese...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2019-01-01
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| Series: | MATEC Web of Conferences |
| Subjects: | |
| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2019/35/matecconf_cmm18_06003.pdf |
| _version_ | 1819275886403256320 |
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| author | Salmi Abdelaziz Bousshine Lahbib Lahlou Khaled |
| author_facet | Salmi Abdelaziz Bousshine Lahbib Lahlou Khaled |
| author_sort | Salmi Abdelaziz |
| collection | DOAJ |
| description | Design methods of flexible pavements in many countries are based on linear elastic behaviour model for Unbound Granular Materials (UGM). In this context, parameters required to characterize an UGM in structural analysis of pavements are Stiffness modulus and Poisson ratio (E and ν). This paper presents a study of two UGM stiffness. Finite element simulation of repeated load CBR (RL-CBR) test has allowed to derive equation used in calculation of materials equivalent modulus based on laboratory RL-CBR Outputs. The staged RL-CBR test is used to evaluate material stiffness for different stress states to highlight its influence on UGM stiffness and compare studied materials. Also, this paper shows that even if two materials are different according to the current road authority specifications, they can represent similar stiffness. |
| first_indexed | 2024-12-23T23:31:27Z |
| format | Article |
| id | doaj.art-b37bed3fd3924e648a3bd5fe77573f53 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-23T23:31:27Z |
| publishDate | 2019-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-b37bed3fd3924e648a3bd5fe77573f532022-12-21T17:26:01ZengEDP SciencesMATEC Web of Conferences2261-236X2019-01-012860600310.1051/matecconf/201928606003matecconf_cmm18_06003Two unbound granular materials stiffness analysis with staged repeated load CBR testSalmi Abdelaziz0Bousshine Lahbib1Lahlou Khaled2Structural and material mechanics team (MSM), ENSEM, Hassan II university of CasablancaStructural and material mechanics team (MSM), ENSEM, Hassan II university of CasablancaResearch team in engineering construction (ERIC), EHTPDesign methods of flexible pavements in many countries are based on linear elastic behaviour model for Unbound Granular Materials (UGM). In this context, parameters required to characterize an UGM in structural analysis of pavements are Stiffness modulus and Poisson ratio (E and ν). This paper presents a study of two UGM stiffness. Finite element simulation of repeated load CBR (RL-CBR) test has allowed to derive equation used in calculation of materials equivalent modulus based on laboratory RL-CBR Outputs. The staged RL-CBR test is used to evaluate material stiffness for different stress states to highlight its influence on UGM stiffness and compare studied materials. Also, this paper shows that even if two materials are different according to the current road authority specifications, they can represent similar stiffness.https://www.matec-conferences.org/articles/matecconf/pdf/2019/35/matecconf_cmm18_06003.pdfRepeated load CBRUnbound Granular MaterialsStiffness modulusFlexible pavement. |
| spellingShingle | Salmi Abdelaziz Bousshine Lahbib Lahlou Khaled Two unbound granular materials stiffness analysis with staged repeated load CBR test MATEC Web of Conferences Repeated load CBR Unbound Granular Materials Stiffness modulus Flexible pavement. |
| title | Two unbound granular materials stiffness analysis with staged repeated load CBR test |
| title_full | Two unbound granular materials stiffness analysis with staged repeated load CBR test |
| title_fullStr | Two unbound granular materials stiffness analysis with staged repeated load CBR test |
| title_full_unstemmed | Two unbound granular materials stiffness analysis with staged repeated load CBR test |
| title_short | Two unbound granular materials stiffness analysis with staged repeated load CBR test |
| title_sort | two unbound granular materials stiffness analysis with staged repeated load cbr test |
| topic | Repeated load CBR Unbound Granular Materials Stiffness modulus Flexible pavement. |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2019/35/matecconf_cmm18_06003.pdf |
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