Abstract: A method for the solidification and containment of sludge from an oil reclaiming process to permit environmentally safe storage disposal of the sludge and particularly electric transformer oil containing PCB's. In the process, the sludge or oil is mixed with fuller's earth in a weight ratio of at least 40:60 of fuller's earth to sludge or oil. The fuller's earth has a particle size not greater than -4 mesh to 0 mesh range and a moisture content of less than 12%. The mixture is allowed to harden to a paste like solid material and conveyed to a conventional land fill storage disposal site.

Abstract: A masonry mortar composition with performance parameters of water retention, plasticity and compressive strength greater than the ASTM standards, consisting essentially of Portland cements, aggregate, water and a calcium magnesium aluminum silicate which replaces the conventional hydrated lime. Preferred compositions are disclosed.