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Utilization of oil-contaminated sands in asphalt concrete for secondary roads

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Abstract

The oil well sabotage during the Iraqi occupation and following the Iraqi withdrawal contaminated the Kuwaiti desert with crude oil covering millions of square meters. Thus, the desert has a huge amount of oil-contamined sand that must be cleaned up or treated in order to restore it to its natural beauty.

The oil-contaminated sand was utilized to mix asphalt concrete in the laboratory to determine the feasibility of using sand contaminated with oil as feed stock in theproduction of asphalt construction materials. The products developed in experimental testing did meet international standards. The mixes were asphalt concrete of a quality that can be used for secondary roads, road beds, road subbases, impermeable layers for landfill and containment facilities, or as stabilizers for steep embankments. Gases emitted during the production of asphalt concrete utilizing oil-polluted sands are considered environmentally acceptable.

Further studies are required to determine the feasibility of producing asphalt concrete from oil-contaminated sand on a pilot-plant scale as a means of utilizing the millions of square meters of oil-polluted sand.

Résumé

Le sabotage des puits de pétrole pendant l’occupation des forces irakiennes et apr⪻s leur retraite a provoqué la contamination du désert koweïtien par du pétrole brut couvrat des millions de mètres carrés. En conséquence, de vastes quantités de sable contaminé par du pétrole doivent être nettoyées ou traitées afin de restaurer la beauté naturelle du désert.

Le sable contaminé a été utilisé pour faire du béton bitumineux en laboratoire afin d’étudier la possibilité d’utiliser du sable souillé par du pétrole pour produire des matériaux de construction bitumineux. Les produits réalisés lors des essais expérimentaux étaient confrmes aux normes internationales. Les mélanges sont des bétons bitumineux d’une qualité acceptable pour des routes secondaires, des couches de base, des sous-couches, des couches imperméables pour terrains remblayés et décharges, et pour stabiliser des talus de remblais. Les gaz émis lors de la production des bétons bitimineux utilisant des sables pollués sont considérés acceptables du point de vue environnemental.

D’autres études sont nécessaires pour déterminer la viabilité d’une production, à l’échelle d’une installation pilote, de bétons bitumineux à partir des sables contaminées par le pétrole, afin d’utiliser les millions de mètres carrés carrés de sable souillé.

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Al-Mutairi, N.M., Eid, W.K. Utilization of oil-contaminated sands in asphalt concrete for secondary roads. Mat. Struct. 30, 497–505 (1997). https://doi.org/10.1007/BF02524778

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  • DOI: https://doi.org/10.1007/BF02524778

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