The inconsistencies and variations in design of pavements arising from using different methods has become a critical issue in Sudan. This paper is aimed to develop a structural design procedure for flexible pavements in order to simplify the design process by using a software program and provide a uniform structural design result. The literature of the conventional design methods commonly experienced in Sudan was intensively reviewed. In fact, these design methods were not designed to cater for the current needs and conditions of Sudan. Thus, an attempt was made to establish a simplified design procedure to accommodate the ever increasing traffic loads, available pavement materials and significant change in climate conditions in Sudan. Based on previous experiences, a design chart for a particular set of traffic loading and CBR values of subgrade soils and granular materials was developed. A software program using Visual Basic language of the Microsoft was created to facilitate the design process. To verify the validity of the developed design chart, three existing roads in Khartoum were redesigned by the new design chart and compared with their previous designs. The results proved that the new design is more realistic, reliable, and accurate design than the previous design. Therefore, adopting the developed design procedure in Sudan might help in enhancing the performance and sustainability of roads. Finally, recommendations are provided for further improvement in design of pavements in view of future developments.
| Published in | American Journal of Construction and Building Materials (Volume 1, Issue 1) |
| DOI | 10.11648/j.ajcbm.20170101.11 |
| Page(s) | 1-11 |
| 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), 2017. Published by Science Publishing Group |
Design Procedure, Conventional Methods, Flexible Pavement, Software Program
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| [3] | AASHTO. AASHTO Guide for Design of Pavements Structures, American Association of State Highway and Transportation Officials, Washington, DC, 1993. |
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| [7] | E. J. Yoder, and M. W. Witczak. Principles of Pavement Design. 2nd Ed., Wiley, New York, 1975. |
| [8] | W. D. Powell, J. F. Potter, H. C. Mayhew, and M. E. Nunn. The structural design of bituminous roads. TRL, Report LR 1 132, Transport Research Laboratory, UK, 1984. |
| [9] | J. F. Shook, F. N. Finn, M. W. Witczak, and C. L. Monismith. “Thickness Design of Asphalt Pavements - The Asphalt Institute Method,” Proceedings of the 5th International Conference on the Structural Design of Asphalt Pavements, pp. 17-44, 1982. |
| [10] | A. I. M. Claussen, J. M. Edwards, P. Sommer, and P. Udge. “Asphalt Pavement Design - The Shell Method,” Proceedings of the 4th International Conference on the Structural Design of Asphalt Pavements, pp. 39-74. ASTM 2000, 1977. |
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APA Style
Magdi M. E. Zumrawi. (2017). Development of a Simplified Structural Design Procedure for Flexible Pavements in Sudan. American Journal of Construction and Building Materials, 1(1), 1-11. https://doi.org/10.11648/j.ajcbm.20170101.11
ACS Style
Magdi M. E. Zumrawi. Development of a Simplified Structural Design Procedure for Flexible Pavements in Sudan. Am. J. Constr. Build. Mater. 2017, 1(1), 1-11. doi: 10.11648/j.ajcbm.20170101.11
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Download@article{10.11648/j.ajcbm.20170101.11,
author = {Magdi M. E. Zumrawi},
title = {Development of a Simplified Structural Design Procedure for Flexible Pavements in Sudan},
journal = {American Journal of Construction and Building Materials},
volume = {1},
number = {1},
pages = {1-11},
doi = {10.11648/j.ajcbm.20170101.11},
url = {https://doi.org/10.11648/j.ajcbm.20170101.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajcbm.20170101.11},
abstract = {The inconsistencies and variations in design of pavements arising from using different methods has become a critical issue in Sudan. This paper is aimed to develop a structural design procedure for flexible pavements in order to simplify the design process by using a software program and provide a uniform structural design result. The literature of the conventional design methods commonly experienced in Sudan was intensively reviewed. In fact, these design methods were not designed to cater for the current needs and conditions of Sudan. Thus, an attempt was made to establish a simplified design procedure to accommodate the ever increasing traffic loads, available pavement materials and significant change in climate conditions in Sudan. Based on previous experiences, a design chart for a particular set of traffic loading and CBR values of subgrade soils and granular materials was developed. A software program using Visual Basic language of the Microsoft was created to facilitate the design process. To verify the validity of the developed design chart, three existing roads in Khartoum were redesigned by the new design chart and compared with their previous designs. The results proved that the new design is more realistic, reliable, and accurate design than the previous design. Therefore, adopting the developed design procedure in Sudan might help in enhancing the performance and sustainability of roads. Finally, recommendations are provided for further improvement in design of pavements in view of future developments.},
year = {2017}
}
TY - JOUR T1 - Development of a Simplified Structural Design Procedure for Flexible Pavements in Sudan AU - Magdi M. E. Zumrawi Y1 - 2017/01/18 PY - 2017 N1 - https://doi.org/10.11648/j.ajcbm.20170101.11 DO - 10.11648/j.ajcbm.20170101.11 T2 - American Journal of Construction and Building Materials JF - American Journal of Construction and Building Materials JO - American Journal of Construction and Building Materials SP - 1 EP - 11 PB - Science Publishing Group SN - 2640-0057 UR - https://doi.org/10.11648/j.ajcbm.20170101.11 AB - The inconsistencies and variations in design of pavements arising from using different methods has become a critical issue in Sudan. This paper is aimed to develop a structural design procedure for flexible pavements in order to simplify the design process by using a software program and provide a uniform structural design result. The literature of the conventional design methods commonly experienced in Sudan was intensively reviewed. In fact, these design methods were not designed to cater for the current needs and conditions of Sudan. Thus, an attempt was made to establish a simplified design procedure to accommodate the ever increasing traffic loads, available pavement materials and significant change in climate conditions in Sudan. Based on previous experiences, a design chart for a particular set of traffic loading and CBR values of subgrade soils and granular materials was developed. A software program using Visual Basic language of the Microsoft was created to facilitate the design process. To verify the validity of the developed design chart, three existing roads in Khartoum were redesigned by the new design chart and compared with their previous designs. The results proved that the new design is more realistic, reliable, and accurate design than the previous design. Therefore, adopting the developed design procedure in Sudan might help in enhancing the performance and sustainability of roads. Finally, recommendations are provided for further improvement in design of pavements in view of future developments. VL - 1 IS - 1 ER -
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