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Research Article
 

Low Cost Roads Stabilized by ECOLOPAVI



Jose Francisco Rufino Diogo and Ammar Abbas Mohammed Shubber
 
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ABSTRACT

This study presents the effect of ECOLOPAVI stabilizer on Low Cost Roads (LCR). This study found that a mix of 2% cement and 5% ECOLOPAVI can improve the bearing capacity (CBR) of clayey soil with CBR = 3% up to 49%; similar result can be get by adding 6% to 7% of cement or lime in conventional practices; that means the combination of ECOLOPAVI with cement or lime can be used to reduce the construction cost of roads. This product is presented as an alternative to other conventional stabilizer in use (cement or lime). In this research, ELSYM 5 program is employed to evaluate and compare two pavement structures with natural subgrade soil and with stabilized subgrade. The pavement response show that it is strongly dependent on subgrade layer elastic or resilient modulus; as the depths increase, the stresses, displacement and strains decreased. The results of two pavements (one with subgrade CBR ≥ 3% and another with subgrade CBR ≥ 12%), show that the structure with subgrade CBR ≥ 12% gave low stress, displacement and strains than that with CBR ≥ 3%.

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  How to cite this article:

Jose Francisco Rufino Diogo and Ammar Abbas Mohammed Shubber , 2007. Low Cost Roads Stabilized by ECOLOPAVI. Journal of Applied Sciences, 7: 2351-2355.

DOI: 10.3923/jas.2007.2351.2355

URL: https://scialert.net/abstract/?doi=jas.2007.2351.2355

REFERENCES
1:  Association of Brazilian Technical Norms (ABTN), 1984. Soil: Grading analysis, NBR 07181. Rio de Janeiro. (In Portuguese).

2:  Association of Brazilian Technical Norms (ABTN), 1984. Soil: Determination of Liquid Limit: NBR 06459. Rio de Janeiro. (In Portuguese).

3:  Association of Brazilian Technical Norms (ABTN), 1984. Soil: Determination of Plasticity Limit: NBR 07180. Rio de Janeiro. (In Portuguese).

4:  Association of Brazilian Technical Norms (ABTN), 1984. Soil: Determination Plasticity Index: NBR 06508. Rio de Janeiro. (In Portuguese).

5:  Association of Brazilian Technical Norms (ABTN), 1986. Soil: Compaction testing: NBR 07182. Rio de Janeiro. (In Portuguese).

6:  Association of Brazilian Technical Norms (ABTN), 1986. Soil: CBR testing: NBR 09895. Rio de Janeiro. (In Portuguese).

7:  David, J.M., 2002. 9th regional seminar for labour practitioners. Proceeding of the Ninth Regional Seminar for Labour Based Technology-Review of Current Practices, Maputo, 2002. ILO Publications Branch, Harare.

8:  Indiana Department of Transportation (INDOT), 2002. Design procedures for soil modification or stabilization. http://www.in.gov/dot/business /design /geotech/smod.pdf.

9:  Jirathanathaworn, T., S. Nontananandh and K. Chantawarangul, 2006. Stabilization of clayey sand using fly ash mixed with small amount of Lime. http://gerd.eng.ku.ac.th/information/article_NCCE9/GTE20.pdf.

10:  Kopperman, S., G. Tiller and M. Tsong, 1986. ELSYM 5- Computer Software. Federal Highway Administration, New York.

11:  Little, D.N., 1999. Evaluation of Structural Properties of Lime Stabilized Soils and Aggregates. Vol. 1, National Lime Association, Australia pp: 5-43.

12:  Little, D.N., E.H. Males and J.R. Prusinski et al., 2002. Cementitious stabilization. http://onlinepubs.trb.org/ onlinepubs/millenium/00016.pdf.

13:  Oglesby, C.H. and R.G. Hicks, 1982. Highway Engineering. 4th Edn., John Wiley, New York, pp: 626-651.

14:  Pedraza, F.L., 1970. Airports. 3rd Edn., Paraninfo, Madrid, pp: 345-350.

15:  Roessler, S., 2006. Ecolopavi: Ecological pavement. Chemical stabilizer for the soils for paving of highways-Technical manual.

16:  Theyse, H.L., M.D. Beer and F.C. Rust, 1996. Overview of South African Mechanistic Pavement Design Analysis Metho: Rehabilitation design of flexible pavements in South Africa. TRB, Washington DC.

17:  Yoder, E.J. and M.W. Witczak, 1975. Principles of Pavement Design. 2nd Edn., John Wiley and Sons, New York, pp: 167.

18:  Zheng, C., H. Li and H. Xu et al., 2005. Road pavement design in northwestern China grassland. J. Eastern Asia Soc. Transport. Studies, 6: 1184-1193.
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