Valorization of Asphalt Rubber Fine Powder in Road Field

Abstract:

In the framework of valorization of the worn tires and environment preservation, several techniques exist in many fields. In Algeria, and since 2005, about 19 facilities are carried out using the so-called `Pneusol' technique. Currently, researches are interested in the use of rubber fine powder (RFP) that results from worn tires crushing. The letters constitute a cumbersome waste.[1,2] The present work presents, beginning from an experimental investigation, the possible using of tire scrap in road coating. The main purpose of such mixture is to improve certain mechanical properties, and also to reduce waste materials in the urban or agricultural zones leading to environmental and human damage. The mean study approach refers to the behavior of asphaltic concrete containing fine powders. The latter is produced by crushing of rubbery products and worn-out tires through dry and wet processes. Changes in rheological laws and in mechanical properties of the bituminous powder mixture are checked by means of experiments. The present study highlights the influence of fine powder content, size distribution and mixing conditions on some product properties such as deformation modulus, compactness and creep. The experimental results of the whole survey lead to interesting correlations. In addition, the rubber fine powder (RFP) is recognized taking into account road and environment interests. This appears to be, economically, interesting.

• Periodical: Key Engineering Materials (Volume 550)
• Pages: 85-90
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.550.85
• Online since: April 2013
• Authors: Nabil Kebaïli, Farid Belabdelouahab, Ali Zerzour
• Keywords: Asphalt Concrete, Asphalt Rubber (AR), Environment, Rubber Fine Powder, Valorization

References

[1] F. Bellabdelouhab, A. Zerzour, : Seek and valorization of the tires worn in the field of civil engineering JEREDD' 08, - June 4. Oran, Algeria (2008).

[2] F. Bellabdelouhab, Valorization of pneumatic waste use and environmental protection - The pneusol material innovating-. Waca, Lyon, France (2009).

[2] Use of the modified bitumen binders, the special bitumens and the bitumens with additives in road engineering - technical Guide - 1999. World association of Road (AIPCR), technical committee of the flexible roads (c8), N° 303 Mars 1999.

[4] N. Kebaili and al.: Influence of the rubber fine powder on the performances of the bitumen binders, Master civil engineering, University of Ouargla 2012.

[5] M. Ould henia, Modeling and prediction of the rheological behavior of the mixtures bituminize-caoutchouc, Thèse of Doctorate, Federal Polytechnic of Lausanne. (2005), p.171

[6] D. Lesueur, The Rheology of the Bitumens: Principles and Modifications, Rheology, 2, 1-30. Thesis of Doctorate, University Paris 6, France (2002), p.190