Abstract |
Three soil materials contaminated with oil, grease, PCB's and metals were stabilized by batch-mixing with portland cement and proprietary additives. Evaluation of this process included attention to physical properties and features visible to the eye and several levels of magnification. Intact cyclindrical samples were examined by X-ray photograph, compressional wave velocity, and petrographic methods; and subjected to strength and permeability tests. The treated wastes had satisfactory strength, resistance to weathering forces, and very low permeability. Waste components were uniformly distributed through the solidified mass. Stability of large masses of solidified waste was evaluated by examination about 1-meter in all dimensions. (Copyright (c) 1990 Kluwer Academic Publishers.) |