Abstract:
This invention provides a method for stabilization of lead smelter slag and matte subject to acid and water leaching tests or leach conditions by addition of stabilizing agents into the smelter feed such that leaching of lead is inhibited to desired levels. The resultant waste after stabilization is deemed suitable for on-site reuse, off-site reuse or disposal as RCRA non-hazardous waste.
Abstract:
A method for preparing transparent mesostructured inorganic/block-copolymer composites or inorganic porous solids containing optically responsive species with selective optical, optoelectronic, and sensing properties resulting therefrom. Mesoscopically organized inorganic/block copolymer composites doped with dyes or complexes are prepared for use as optical hosts, chemical/physical/biological sensors, photochromic materials, optical waveguides, tunable solid-state lasers, or optoelectronic devices. The materials can be processed into a variety of different shapes, such as films, fibers, monoliths, for novel optical and sensing applications.
Abstract:
This invention provides a method for stabilization of lead smelter slag and matte subject to acid and water leaching tests or leach conditions by addition of stabilizing agents into the smelter feed such that leaching of lead is inhibited to desired levels. The resultant waste after stabilization is deemed suitable for on-site reuse, off-site reuse or disposal as RCRA non-hazardous waste.
Abstract:
A combination of compositions, products and methods of producing a new type of cement. The cementitious material is created by adding sodium carbonate (also known as soda ash, trona, natron, sodium carbonate decahydrate, sodium carbonate anhydrous, etc.) and one or more rocks or minerals selected from the following—granite, basalt, sandstone or schist. A new method and product are claimed by combining sodium carbonate and one or more rocks or minerals selected from the following—granite, basalt, sandstone or schist and water. The combination of sodium carbonate and one or more rocks or minerals selected from the granite, basalt, sandstone or schist group can be either layered or mixed in a dry or wet state. An exothermic reaction starts after the addition of water to the cementitious material. The composition of the cementitious material can vary between 10% sodium carbonate and 90% of one or more rocks or minerals selected from the granite, basalt, sandstone or schist group to 90% sodium carbonate and 10% of one or more rocks or minerals selected from the granite, basalt, sandstone or schist group. Organic or inorganic additives may be added to the mixture to enhance the composition and/or the final hardened product. The cementitious material or products can be used in a variety of applications not inclusive of forming bricks, interior architecture, table or counter tops, ornaments, repairing damaged cement products, casting, bioabsorbable devices, extruded products, sprayed products, filler, grout, mortar, gunnite, moulded products, composites, cast stonework, agglomerated stone, concrete, hardened products, electronics, packaging and other applications not mentioned above.
Abstract:
A method of inspecting a concrete surface. The method comprises ejecting highly pressurized water to a concrete surface by using a jet nozzle, thereby fracturing and spalling off deteriorated concrete deteriorated in strength, with leaving only sound concrete, for inspection of surface strength.
Abstract:
A building block manufacturing system comprising a compression chamber capable of containing compressible block making material, said material comprised entirely or in part of waste material, preferably selected from the group consisting of fly ash, ground wood, waste vegetation matter, sea shells and sand; and a ram capable of exerting a desired pressure on the contents of said compression chamber; wherein, when said block making material being is placed in the compression chamber, the ram may exert a desired pressure on the material thereby compressing, and assisting in the curing or the material into a desired shape conforming to the interior surfaces of the compression chamber. The present invention also comprises the novel method of using the novel block manufacturing system.
Abstract:
A compressed building block formed of a pre-mix of fly ash, either of the Class C type, or provided from sugar beet waste lime, are combined with either ground or pulverized wood and/or chips, or with fine sand, having a small amount of Portland cement added thereto, moisturized, and then either extruded or compressed in a press into the configuration of a block. A fire retardant, and an insecticide, may be added to the composition, to provide the formed block with further beneficial attributes. The blocks may be formed by a system for extruding such blocks from the formulation, or they may be formed by means of a hydraulic or other press and pressed into the configuration of the desired block, needed for the construction.
Abstract:
A decorative composite stone material, the finished face of which is more durable and requires less maintenance than previous composite stone products. The decorative component of the aggregate material is specifically limited to a hard aggregate of enhanced aesthetic appeal, specifically, to granules of quartz or other transparent or semi-transparent material having a Mohs index of at least 7, naturally occurring or synthetic. The granules of quartz are adjustably coated with a metallic, ceramic, plastic or other film, mixed with a binder, cast, and cured. In the surface finishing step, granules close to the surface are ground to create an exposed facet through which light passes in and out, the coating providing reflective properties that add color, sparkle, glitter, metallic or other visual effect to the hard composite stone surface without compromising the hardness and durability of the product.
Abstract:
An acoustically absorbent porous panel formed from a cured aqueous foamed cementitious material comprising on a wet basis of about 53% to about 68% by weight cement, about 17% to about 48% by weight water, about 0.05% to about 5% by weight fiber, and about 0.01% to about 10% by weight surfactant. The panel also has pores distributed within the cured material comprising about 75% to about 95% by volume of the material. The cement-based, foamed panel provides good acoustical performance with enhanced durability and moisture resistance.
Abstract:
A pumpable ceramic composition is provided comprising an inorganic oxide, potassium phosphate, and an oxide coating material. Also provided is a method for preparing pumpable ceramic-based waste forms comprising selecting inorganic oxides based on solubility, surface area and morphology criteria; mixing the selected oxides with phosphate solution and waste to form a first mixture; combining an additive to the first mixture to create a second mixture; adding water to the second mixture to create a reactive mixture; homogenizing the reactive mixture; and allowing the reactive mixture to cure.