Two unbound granular materials stiffness analysis with staged repeated load CBR test

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...

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Bibliographic Details
Main Authors: Salmi Abdelaziz, Bousshine Lahbib, Lahlou Khaled
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:MATEC Web of Conferences
Subjects:
Repeated load CBR
Unbound Granular Materials
Stiffness modulus
Flexible pavement.
Online Access:https://www.matec-conferences.org/articles/matecconf/pdf/2019/35/matecconf_cmm18_06003.pdf
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spelling doaj-b37bed3fd3924e648a3bd5fe77573f532021-02-02T01:47:06ZengEDP 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.
collection DOAJ
language English
format Article
sources DOAJ
author Salmi Abdelaziz
Bousshine Lahbib
Lahlou Khaled
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.
author_facet Salmi Abdelaziz
Bousshine Lahbib
Lahlou Khaled
author_sort Salmi Abdelaziz
title 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_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_sort two unbound granular materials stiffness analysis with staged repeated load cbr test
publisher EDP Sciences
series MATEC Web of Conferences
issn 2261-236X
publishDate 2019-01-01
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.
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
work_keys_str_mv AT salmiabdelaziz twounboundgranularmaterialsstiffnessanalysiswithstagedrepeatedloadcbrtest
AT bousshinelahbib twounboundgranularmaterialsstiffnessanalysiswithstagedrepeatedloadcbrtest
AT lahloukhaled twounboundgranularmaterialsstiffnessanalysiswithstagedrepeatedloadcbrtest
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