Abstract
Enrobé à Module Élevé (EME) technology, a High Modulus Asphalt (HiMA), was originally developed in France. The technology is primarily suitable for construction of heavily trafficked routes, airports and container terminals. The key performance characteristics of EME are high stiffness, high resistance to permanent deformation and fatigue cracking. EME is also designed to offer good moisture resistance and good workability. The EME technology has been successfully introduced to South Africa. The development of EME design guidelines in South Africa started in 2006. A major outcome was the publication of Sabita Manual 33: “Interim design procedure for high modulus asphalt in South Africa.” The performance criteria/specifications stipulated in Manual 33 were based on limited data. Based on further work against French mix design and analysis of data collected in South Africa, a revised fatigue and stiffness specifications were adopted in July 2015. Implementation of EME technology in South Africa started in 2011, when a trial section consisting of an EME base layer was constructed on the heavily trafficked South Coast Road in Durban. The section is a major entry route for heavy vehicles travelling to the Durban harbour. Several attempts to rehabilitate the section using conventional asphalt mixes had failed as a result of premature rutting due to the heavy traffic volumes entering the Durban harbour. The heavy traffic volumes at the section offered an ideal setting for an experiment in Accelerated Pavement Testing (APT) without the use of a Heavy Vehicle Simulator (HVS), which enabled the accelerated validation of the South African EME design procedure. The objective of this paper is to present the outcomes of the Long-Term Pavement Performance (LTPP) monitoring programme that was undertaken to assess the field performance of EME, and discuss the development of the newly adopted South African EME performance specifications.
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References
AASHTO T 320. (2007). Standard method of test for determining the permanent shear strain and stiffness of asphalt mixtures using the superpave shear tester (SST). Washington, DC: American Association of State Highway and Transportation Officials.
AASHTO T 321. (2009). Standard method of test for determining the fatigue life of compacted hot-mix asphalt (HMA) subjected to repeated flexural bending. Washington, DC: American Association of State Highway and Transportation Officials.
AASHTO TP 79. (2009). Standard method of test for determining the dynamic modulus and flow number for hot-mix asphalt (HMA) using asphalt mixture performance tester (AMPT). Washington, DC: American Association of State Highway and Transportation Officials.
Anochie-Boateng, J., Denneman, E., O’Connell, J., & Ventura, D. (2010a). High modulus asphalt mix technology transfer: Level 1 report of high modulus asphalt reference mix. Report prepared for Sabita, Report number CSIR/BE/IE/ER/2010/0080/C, CSIR, Pretoria.
Anochie-Boateng, J., Denneman, E., Mturi, G., O’Connell, J., & Ventura, D. (2010b). Hot-mix asphalt testing for the South African pavement design method. In 29th Southern Africa Transportation Conference, Pretoria.
Asphalt Institute. (1996). Mix design methods for asphalt concreate and other hot-mix asphalt. Superpave Series No.2. USA.
Denneman, E., Nkgapele, M., Maina, J. W., Komba, J., Verhaeghe, B. M. J. W., & Duplessis, L. (2011a). High modulus asphalt technology transfer: Final report phase 2. Report: CSIR/BE/IE/ER/2011/0066/C Prepared for Sabita, CSIR, Pretoria.
Denneman, E., Nkgapele, M., Anochie-Boateng, J., & Maina, J. W. (2011b). Transfer of high modulus asphalt mix technology to South Africa. In: Proceedings of the 10th conference on asphalt pavements for Southern Africa, Champagne Sports Resort.
Denneman, E., Nkgapele, M., & Komba, J. (2011c). Implementation of high modulus asphalt technology at South Coast Road in eThekwini. Technical Report No: CSIR/BE/IE/ER/2011/0048/C. CSIR, Pretoria.
Delorme, J., De La Roche, C., & Wendling, L. (2007). LPC bituminous mixtures design guide. Director. Paris: Laboratoire Central des Ponts et Chaussees.
Horak, E. (2008). Benchmarking the structural condition of flexible pavements with deflection bowl parameters. Journal of the South African Institution of Civil Engineering, 50(2), 2–9.
Komba, J., & Vehaeghe. (2015). Refining Enrobé à Module Élevé (EME) fatigue criteria. Technical Report No: CSIR/BE/TIE/IR/2015/0036/C. CSIR, Pretoria.
Lawrence, D., Fremont, S., & Hornsey, B. (2015). The development of a South African high modulus asphalt mixture using French EME Methodology. In: Proceedings of the 11th Conference on Asphalt Pavements for Southern Africa. Sun City.
Lawrence, D., & Jungmann, L. (2014). Technical Service request report No. TS EUSC-2014-147. Shell European Solution Centre, France.
Nkgapele, M., Denneman, E., & Anochie-Boateng. (2012). Construction of a high modulus asphalt (HiMA) trial section eThekwini: South Africa’s first practical experience with design, manufacturing and pavement of HiMA. In Proceedings of the 31st Annual Southern Africa Transport Conference, Pretoria.
Sabita. (2013). Interim design procedure for high modulus asphalt: Sabita Manual 33. ISBN 978-1-874968-62-7. Howard Place, South Africa.
Sabita. (2015). Design procedure for high modulus asphalt (EME): Sabita Manual 33. ISBN 978-1-874968-62-7. Howard Place, South Africa.
Steyn, W. J. M., Maina, J. M., Myburgh, P., & Solomons, S. (2015). Evaluation of EME transfer functions and critical layer thicknesses. In Proceedings of the 11th Conference on Asphalt Pavements for Southern Africa. Sun City.
TMH 9. (1992). Pavement management systems: Standard visual assessment manual for flexible pavements. CSRA. Pretoria, South Africa.
Vavrik, W. R., Huber, G., Pine, W. J., Carpenter, S. H., & Bailey, R. (2002). Bailey method for gradation selection in hot-mix asphalt mixture design. Transportation Research E Circular, Number E-C044.
Acknowledgments
The construction of the EME trial section on South Coast Road was funded by eThekwini Municipality. The monitoring of the field performance of the trial section was funded by the Southern African Bitumen Association (SABITA). Their financial contribution is acknowledged and gratefully appreciated.
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Komba, J., Anochie-Boateng, J., O’Connell, J., Verhaeghe, B. (2016). Long-Term Pavement Performance Monitoring and the Revision of Performance Criteria for High Modulus Asphalt in South Africa. In: Aguiar-Moya, J., Vargas-Nordcbeck, A., Leiva-Villacorta, F., Loría-Salazar, L. (eds) The Roles of Accelerated Pavement Testing in Pavement Sustainability. Springer, Cham. https://doi.org/10.1007/978-3-319-42797-3_12
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