Initial Investigation on The Use of Oil Drill Waste Stabilized Foamed Bitumen As Pavement Materials
This paper provides an overview in the use of foamed bitumen to stabilize oil drill waste soil. In this investigation, an attempting has been conducted in order to evaluate the stiffness modulus of the stabilized soil. This was included the usage of limestone crushed aggregates, hydrated lime and Portland cement in order to see their effect on the mixture performance. The mix protocol and composition of the stabilized mixture have also been proposed to obtain the optimum performance. Oil drill waste can be stabilized using foamed bitumen. With considering their strength, this material can be used as pavement materials. The drill wastes contained clay and oils seem to prevent the mixtures from bonding as effectively to the foam as limestone crushed aggregates, it is suggested that the drill waste should be treated first by hydrated lime prior mixing with foam. To achieve a more effective coating between the foamed bitumen and the aggregate particles, it is suggested to mix the foamed bitumen only with the rock dust. The resultant mixture can then be stored for reasonable periods (sealed up to 3 months) before being mixed with drill waste, hydrated lime and, optionally, coarse aggregate and/or Portland cement.