This study has been conducted on Tarcha-Yalo Road segment. The objective of this study is to investigate the causes and remedial measures for asphalt pavement distresses. To meet the objective a systematic methodology is used to investigate field survey and laboratory tests were carried out. Soil samples were collected using purposive techniques of sampling from severely damaged and non-damaged sections. Severely damaged section distresses were corrugation, block cracking, ravelling and stripping. Based on selection, the representative samples of soil was collected for the three failed and two non-failed section from the study area. The condition survey has been conducted for the evaluation of pavement condition and the average PCI of the study area fall in the average PCI value indicates the pavement performance condition of the total road length (47.4 km) is under category of good (60%) and very good (40%) condition of pavement condition rating. Average thicknesses of each layer of failed sections were measured and Asphalt 2.13cm, base course 10.5cm, and sub-base 11.67cm. And the average thicknesses of non-failed sections were 3.35cm for asphalt, 9cm for base course and 12.5 cm for sub base. According to AASHTO and Unified Soil Classification of soil Subgrade was A-7 and SC, sub base A-2-4 and GP and base course A-1-a and GW respectively. An average LL, PL and PI of failed sections of base course (5%, 0%, 5%), sub-base (33.33%, 25%, 8.33%) and subgrade (52.5%, 31.33%, 21.33%) whereas an average LL, PL and PI of the non-failed sections were (4.5%, 0%, 4.5%), (35.5%, 25.5%, 10%) and (46.5%, 33%, 13.5%) for base course, sub base and sub grade materials respectively. Compaction (MDD (g/cc), OMC (%)) of failed section of base course (1.73, 10.92), sub base (1.67, 12.23) and sub-grade (1.58g/cc, 20.33% whereas the non-failed sections were (1.76, 9.95), (1.74, 11.1), (1.65, 14.4) for base course, sub base and sub grade respectively. The CBR% of base course 80%, sub-base 60% and sub-grade 9% obtained. The Los Angeles Abrasion test values of sub base and base course were sampled with two trials of tests for each. Based on the laboratory test result and condition survey the pavement failure is due to insufficient thickness design, improper compaction, heavy traffic load, and poor drainage, absence of shoulder and poor-quality of construction materials. Finally it is recommended that the periodic maintenance such as fog seal, slurry seal and crack sealing for failed section in Tarcha-Yalo road section.
| Published in | American Journal of Civil Engineering (Volume 11, Issue 4) |
| DOI | 10.11648/j.ajce.20231104.12 |
| Page(s) | 44-53 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2023. Published by Science Publishing Group |
Pavement Distress, Distress Type, Laboratory Tests, ERA 2013, Condition Survey
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APA Style
Damota, H. D., Tesfaye, A., Geremew, A. (2023). An Experimental Investigation on the Causes of Flexible Pavement Failures: A Case Study on Tarcha - Yalo Road Section. American Journal of Civil Engineering, 11(4), 44-53. https://doi.org/10.11648/j.ajce.20231104.12
ACS Style
Damota, H. D.; Tesfaye, A.; Geremew, A. An Experimental Investigation on the Causes of Flexible Pavement Failures: A Case Study on Tarcha - Yalo Road Section. Am. J. Civ. Eng. 2023, 11(4), 44-53. doi: 10.11648/j.ajce.20231104.12
AMA Style
Damota HD, Tesfaye A, Geremew A. An Experimental Investigation on the Causes of Flexible Pavement Failures: A Case Study on Tarcha - Yalo Road Section. Am J Civ Eng. 2023;11(4):44-53. doi: 10.11648/j.ajce.20231104.12
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Download@article{10.11648/j.ajce.20231104.12,
author = {Hailemichael Debalke Damota and Abel Tesfaye and Anteneh Geremew},
title = {An Experimental Investigation on the Causes of Flexible Pavement Failures: A Case Study on Tarcha - Yalo Road Section},
journal = {American Journal of Civil Engineering},
volume = {11},
number = {4},
pages = {44-53},
doi = {10.11648/j.ajce.20231104.12},
url = {https://doi.org/10.11648/j.ajce.20231104.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajce.20231104.12},
abstract = {This study has been conducted on Tarcha-Yalo Road segment. The objective of this study is to investigate the causes and remedial measures for asphalt pavement distresses. To meet the objective a systematic methodology is used to investigate field survey and laboratory tests were carried out. Soil samples were collected using purposive techniques of sampling from severely damaged and non-damaged sections. Severely damaged section distresses were corrugation, block cracking, ravelling and stripping. Based on selection, the representative samples of soil was collected for the three failed and two non-failed section from the study area. The condition survey has been conducted for the evaluation of pavement condition and the average PCI of the study area fall in the average PCI value indicates the pavement performance condition of the total road length (47.4 km) is under category of good (60%) and very good (40%) condition of pavement condition rating. Average thicknesses of each layer of failed sections were measured and Asphalt 2.13cm, base course 10.5cm, and sub-base 11.67cm. And the average thicknesses of non-failed sections were 3.35cm for asphalt, 9cm for base course and 12.5 cm for sub base. According to AASHTO and Unified Soil Classification of soil Subgrade was A-7 and SC, sub base A-2-4 and GP and base course A-1-a and GW respectively. An average LL, PL and PI of failed sections of base course (5%, 0%, 5%), sub-base (33.33%, 25%, 8.33%) and subgrade (52.5%, 31.33%, 21.33%) whereas an average LL, PL and PI of the non-failed sections were (4.5%, 0%, 4.5%), (35.5%, 25.5%, 10%) and (46.5%, 33%, 13.5%) for base course, sub base and sub grade materials respectively. Compaction (MDD (g/cc), OMC (%)) of failed section of base course (1.73, 10.92), sub base (1.67, 12.23) and sub-grade (1.58g/cc, 20.33% whereas the non-failed sections were (1.76, 9.95), (1.74, 11.1), (1.65, 14.4) for base course, sub base and sub grade respectively. The CBR% of base course 80%, sub-base 60% and sub-grade 9% obtained. The Los Angeles Abrasion test values of sub base and base course were sampled with two trials of tests for each. Based on the laboratory test result and condition survey the pavement failure is due to insufficient thickness design, improper compaction, heavy traffic load, and poor drainage, absence of shoulder and poor-quality of construction materials. Finally it is recommended that the periodic maintenance such as fog seal, slurry seal and crack sealing for failed section in Tarcha-Yalo road section.
},
year = {2023}
}
TY - JOUR T1 - An Experimental Investigation on the Causes of Flexible Pavement Failures: A Case Study on Tarcha - Yalo Road Section AU - Hailemichael Debalke Damota AU - Abel Tesfaye AU - Anteneh Geremew Y1 - 2023/11/24 PY - 2023 N1 - https://doi.org/10.11648/j.ajce.20231104.12 DO - 10.11648/j.ajce.20231104.12 T2 - American Journal of Civil Engineering JF - American Journal of Civil Engineering JO - American Journal of Civil Engineering SP - 44 EP - 53 PB - Science Publishing Group SN - 2330-8737 UR - https://doi.org/10.11648/j.ajce.20231104.12 AB - This study has been conducted on Tarcha-Yalo Road segment. The objective of this study is to investigate the causes and remedial measures for asphalt pavement distresses. To meet the objective a systematic methodology is used to investigate field survey and laboratory tests were carried out. Soil samples were collected using purposive techniques of sampling from severely damaged and non-damaged sections. Severely damaged section distresses were corrugation, block cracking, ravelling and stripping. Based on selection, the representative samples of soil was collected for the three failed and two non-failed section from the study area. The condition survey has been conducted for the evaluation of pavement condition and the average PCI of the study area fall in the average PCI value indicates the pavement performance condition of the total road length (47.4 km) is under category of good (60%) and very good (40%) condition of pavement condition rating. Average thicknesses of each layer of failed sections were measured and Asphalt 2.13cm, base course 10.5cm, and sub-base 11.67cm. And the average thicknesses of non-failed sections were 3.35cm for asphalt, 9cm for base course and 12.5 cm for sub base. According to AASHTO and Unified Soil Classification of soil Subgrade was A-7 and SC, sub base A-2-4 and GP and base course A-1-a and GW respectively. An average LL, PL and PI of failed sections of base course (5%, 0%, 5%), sub-base (33.33%, 25%, 8.33%) and subgrade (52.5%, 31.33%, 21.33%) whereas an average LL, PL and PI of the non-failed sections were (4.5%, 0%, 4.5%), (35.5%, 25.5%, 10%) and (46.5%, 33%, 13.5%) for base course, sub base and sub grade materials respectively. Compaction (MDD (g/cc), OMC (%)) of failed section of base course (1.73, 10.92), sub base (1.67, 12.23) and sub-grade (1.58g/cc, 20.33% whereas the non-failed sections were (1.76, 9.95), (1.74, 11.1), (1.65, 14.4) for base course, sub base and sub grade respectively. The CBR% of base course 80%, sub-base 60% and sub-grade 9% obtained. The Los Angeles Abrasion test values of sub base and base course were sampled with two trials of tests for each. Based on the laboratory test result and condition survey the pavement failure is due to insufficient thickness design, improper compaction, heavy traffic load, and poor drainage, absence of shoulder and poor-quality of construction materials. Finally it is recommended that the periodic maintenance such as fog seal, slurry seal and crack sealing for failed section in Tarcha-Yalo road section. VL - 11 IS - 4 ER -
Highway Engineering, Civil and Environmental Engineering, Jimma University, Jimma, Ethiopia
Highway Engineering, Civil and Environmental Engineering, Jimma University, Jimma, Ethiopia
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