Valorisation of Coal Mine Tailings in Roads Construction

N. Bella, M. A. Dahane, T. A. Mebarki, A. Benmalek, M. Benallal

Abstract


Abstract: In this paper, a real scale road was realized and investigated in Kenadsa using coal mine tailings with the cooperation of socio-economic partners (OPGI, private enterprise and municipality of Kenadsa), the optimal dosage of coal mine tailings was determined in laboratory, which lead to acceptable geotechnical characteristics, also leaching tests were realized. In field long time investigation, shows some cracks in the pavement. That cracks was due to local swell at base layer, due to schist particles, which presents a high rate of swelling. The proposed solution is that coal mine tailings must be pre-treated before using as base layer road material, but can be used as it in sub-base or capping layer. Leaching tests results show that the tuff don´t absorbs all pollutants, thus a treatment by hydraulic binders and/or addition of anti-contaminant layer are necessary.

Full Text:

PDF

References


Dalmasso, E. Une cité minière au Nord-Sahara: Béchar-Djedid. Méditerranée 3(1) (1962) 21-50.

Tinthoin, R.. Un centre minier moderne à la limite du Sahara oranais. Annales de Géographie 57(305) (1948) 91-92.

Osborne, D. The Coal Handbook: Towards Cleaner Production: Volume 2: Coal Utilisation. Elsevier (2013).

Taha, Y.; Benzaazoua, M.; Hakkou, R.; Mansori, M. Coal mine wastes recycling for coal recovery and eco-friendly bricks production. Minerals Engineering 107 (2017) 123-138.

Taha, Y.; Benzaazoua, M.; Edahbi, M.; Mansori, M.; Hakkou, R. Leaching and geochemical behavior of fired bricks containing coal wastes. Journal of environmental management 209 (2018) 227-235.

ONRGM (Office National de Recherche Géologique et Minière). Etude de condition de prise en charge des terriles des villes de Bechar et de Kenadsa, Partie I. (2003) Bechar, Algeria.

ONRGM (Office National de Recherche Géologique et Minière). Etude de condition de prise en charge des terriles des villes de Bechar et de Kenadsa, Partie II. (2003) Bechar, Algeria.

ONRGM (Office National de Recherche Géologique et Minière). Etude de condition de prise en charge des terriles des villes de Bechar et de Kenadsa, Partie III. (2003) Bechar, Algeria.

ONRGM (Office National de Recherche Géologique et Minière). Etude de condition de prise en charge des terriles des villes de Bechar et de Kenadsa, Partie IV. (2003) Bechar, Algeria.

Himouri, S.; Bendani, K.; Acid M. Valorisation des schistes houillers dans les béton bitumineux. Algerie Equipement 52 (2013) 33-44.

Bellagh, K. Valorisation des sols urbains faiblement polluées dans les travaux de terrassement: le devenir des polluants dans les sols traités compactés. PhD thesis, Université Paris-est (2017).

CEN/TS-16637-2, Construction products, 2014. Assessment of Release of Dangerous Substances - Part 2: Horizontal Dynamic Surface Leaching Test.

Fenzy, E. Particularité de la Technique Routière au Sahara. Revue générale des routes et aérodromes 411 (1966) 57-71.

GTR. Réalisation des remblais et des couches de forme. Guide technique, LCPC-SETRA, (1992) Framce.

Sitrouillou, R.; Alloul, B. Road upgrading of encrusting tufa in Algeria. Bulletin of the International Association of Engineering Geology 30 (1984) 465-469.

CTTP. Catalogue de Dimensionnement des Chaussées neuves. Organisme National de Contrôle Technique des Travaux Publics (2001) Algérie.

JORDP. Journal Officiel de la Republique Algerienne N 18, 23 mars 2011.

WHO (World Health Organization). Guidelines for drinking water quality: Recommendations in book. Guidelines for drinking water quality: Recommendations. (2006) Geneva.

Dehwah, H. A. F. Effect of sulphate contamination on chloride-binding capacity of plain and blended cements. Advances in cement research 18(1) (2006) 7-15.


Refbacks

  • There are currently no refbacks.