EVALUATION OF INTERACTION BETWEEN MECHANICAL PARAMETERS OF UNBOUND GRANULAR MATERIALS IN BASE LAYER OF ASPHALT PAVEMENT
In a majority of methods used for designing asphalt pavements, the base and sub-base layers have not received enough attention; instead, most researches have focused on the asphal...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | fas |
| Published: |
Sharif University of Technology
2021-02-01
|
| Series: | مهندسی عمران شریف |
| Subjects: | |
| Online Access: | https://sjce.journals.sharif.edu/article_21856_5607b89254cdd204183bd2f3326807c1.pdf |
| _version_ | 1797738800881860608 |
|---|---|
| author | M.R. Ahadi S. F. Mirhashemi M. Sadeghnejad |
| author_facet | M.R. Ahadi S. F. Mirhashemi M. Sadeghnejad |
| author_sort | M.R. Ahadi |
| collection | DOAJ |
| description | In a majority of methods used for designing asphalt pavements, the base and
sub-base layers have not received enough attention; instead, most researches
have focused on the asphalt layers. These layers play a key role in reducing
stress on the base layer. Light Weight Deflectometer (LWD) test is commonly
used for assessing the bearing capacity of unbound layers of pavements. The
present study aims to investigate the simultaneous effects of different variables such as sample thickness, wet content, weight, and compaction on the base layer surface modulus and deflection through LWD test results on the $150\times150\times60$ cm sample. The results indicated that the maximum compaction value was 97\% with a thickness of 40 cm and the minimum compaction value was 10 Kg weight with 20 cm thickness. Furthermore, according to the findings, an increase in the compaction and thickness of the layer led to a decrease in the deflection and an increase in the mass of weight; however, moisture did not significantly influence the mentioned factor. |
| first_indexed | 2024-03-12T13:48:03Z |
| format | Article |
| id | doaj.art-6b0511c438a84c1a86765237b6a3d093 |
| institution | Directory Open Access Journal |
| issn | 2676-4768 2676-4776 |
| language | fas |
| last_indexed | 2024-03-12T13:48:03Z |
| publishDate | 2021-02-01 |
| publisher | Sharif University of Technology |
| record_format | Article |
| series | مهندسی عمران شریف |
| spelling | doaj.art-6b0511c438a84c1a86765237b6a3d0932023-08-23T07:50:55ZfasSharif University of Technologyمهندسی عمران شریف2676-47682676-47762021-02-0136.24.231410.24200/j30.2020.52968.252121856EVALUATION OF INTERACTION BETWEEN MECHANICAL PARAMETERS OF UNBOUND GRANULAR MATERIALS IN BASE LAYER OF ASPHALT PAVEMENTM.R. Ahadi0S. F. Mirhashemi1M. Sadeghnejad2Transportation Research Institute Road, Housing, and Urban DevelopmentIslamic Azad University of Shahrood BranchTransportation Research Institute Road, Housing, and Urban DevelopmentIn a majority of methods used for designing asphalt pavements, the base and sub-base layers have not received enough attention; instead, most researches have focused on the asphalt layers. These layers play a key role in reducing stress on the base layer. Light Weight Deflectometer (LWD) test is commonly used for assessing the bearing capacity of unbound layers of pavements. The present study aims to investigate the simultaneous effects of different variables such as sample thickness, wet content, weight, and compaction on the base layer surface modulus and deflection through LWD test results on the $150\times150\times60$ cm sample. The results indicated that the maximum compaction value was 97\% with a thickness of 40 cm and the minimum compaction value was 10 Kg weight with 20 cm thickness. Furthermore, according to the findings, an increase in the compaction and thickness of the layer led to a decrease in the deflection and an increase in the mass of weight; however, moisture did not significantly influence the mentioned factor.https://sjce.journals.sharif.edu/article_21856_5607b89254cdd204183bd2f3326807c1.pdfasphalt pavementbase layergrangular materialsdeflectioncompaction |
| spellingShingle | M.R. Ahadi S. F. Mirhashemi M. Sadeghnejad EVALUATION OF INTERACTION BETWEEN MECHANICAL PARAMETERS OF UNBOUND GRANULAR MATERIALS IN BASE LAYER OF ASPHALT PAVEMENT مهندسی عمران شریف asphalt pavement base layer grangular materials deflection compaction |
| title | EVALUATION OF INTERACTION BETWEEN MECHANICAL PARAMETERS OF UNBOUND GRANULAR MATERIALS IN BASE LAYER OF ASPHALT PAVEMENT |
| title_full | EVALUATION OF INTERACTION BETWEEN MECHANICAL PARAMETERS OF UNBOUND GRANULAR MATERIALS IN BASE LAYER OF ASPHALT PAVEMENT |
| title_fullStr | EVALUATION OF INTERACTION BETWEEN MECHANICAL PARAMETERS OF UNBOUND GRANULAR MATERIALS IN BASE LAYER OF ASPHALT PAVEMENT |
| title_full_unstemmed | EVALUATION OF INTERACTION BETWEEN MECHANICAL PARAMETERS OF UNBOUND GRANULAR MATERIALS IN BASE LAYER OF ASPHALT PAVEMENT |
| title_short | EVALUATION OF INTERACTION BETWEEN MECHANICAL PARAMETERS OF UNBOUND GRANULAR MATERIALS IN BASE LAYER OF ASPHALT PAVEMENT |
| title_sort | evaluation of interaction between mechanical parameters of unbound granular materials in base layer of asphalt pavement |
| topic | asphalt pavement base layer grangular materials deflection compaction |
| url | https://sjce.journals.sharif.edu/article_21856_5607b89254cdd204183bd2f3326807c1.pdf |
| work_keys_str_mv | AT mrahadi evaluationofinteractionbetweenmechanicalparametersofunboundgranularmaterialsinbaselayerofasphaltpavement AT sfmirhashemi evaluationofinteractionbetweenmechanicalparametersofunboundgranularmaterialsinbaselayerofasphaltpavement AT msadeghnejad evaluationofinteractionbetweenmechanicalparametersofunboundgranularmaterialsinbaselayerofasphaltpavement |