Abstract: A way of using fly ash and water to make a road base material is disclosed. Class C fly ash, which sets up very quickly, is mixed with a hydrating liquid and compacted prior to initial set. To facilitate mixing, transportation and placement of the wet mixture, a set sequestering additive may be added to the water before mixing the water and the fly ash. Also disclosed is a mixing device designed to be attached to the underside of a tanker trailer of the type used to transport dry fly ash. The mixer introduces water to the inside and outside areas of a falling tubular stream of fly ash.

Abstract: A method for making synthetic aggregate. Fly ash is combined with water to form a soil-like mixture. The mixture is then compacted into slabs and allowed to set. After setting, the material is crushed to appropriate size. Since fly ash and water mixtures set quickly, and since compaction should take place prior to setting of the mixture, a set sequestering admixture may be used to facilitate the process.

Abstract: The invention relates to a method of utilizing sewage sludge to form a stablized sterile or pasteurized material which can be used as fertilizer, as fill for land development, or as a cover in solid-waste disposal applications. Fluidized bed combustion residue, fly ash, or FBCR and fly ash are added directly to the sewage sludge exothermic heat is released and the mixture is cured in order to eliminate bacterial and other pathogenic agents. The mixture has a soil-like consistancy, making it spreadable. The mixture has both the nutritive benefits of sewage sludge as a fertilizer and alkalinity for treatment of overly acidic soil.

Abstract: The invention relates to a method of utilizing sewage sludge to form a stabilized sterile or pasteurized material which can be used as fertilizer, as fill for land development, or as a cover in solid-waste disposal applications. Fluidized bed combustion residue, fly ash, or FBCR and fly ash are added directly to the sewage sludge exothermic heat is released and the mixture is cured in order to eliminate bacterial and other pathogenic agents. The mixture has a soil-like consistency, making it spreadable. The mixture has both the nutritive benefits of sewage sludge as a fertilizer and alkalinity for treatment of overly acidic soil.