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| Number | Title | Issue Date |
| 7267720 | Method for preparing a building material A method of preparing a building material is provided. An aggregate material, water, a hydraulic binder material, and one or more hydraulic activators are mixed. The hydraulic binder material comprises slag material. The mixture is allowed to harden. A building mate... | 09/11/2007 |
| 7250119 | Composite materials and techniques for neutron and gamma radiation shielding This invention deals with multi-component composite materials and techniques for improved shielding of neutron and gamma radiation emitting from transuranic, high-level and low-level radioactive wastes. Selective naturally occurring mineral materials are utilized to... | 07/31/2007 |
| 7163581 | Method for making regenerated soil material for the production of a structural unit, the structural unit made from the regenerated soil material, and method for recycling the structural unit A method for making a regenerated soil material for the production of a structural unit includes the steps of: a) obtaining a raw soil material containing aluminum and silicon from a natural source; b) adding an active mineral containing aluminum and silicon to the ... | 01/16/2007 |
| 6893751 | Composite product A composite product comprising a substrate layer and one or more functional layers applied thereto. The slurry is applied to the substrate layer to form a functional layer and the functional layer dewatered through the substrate layer. The functional layers can be r... | 05/17/2005 |
| 6869475 | Calcium silicate insulating material containing blast furnace slag cement An asbestos free, calcium silicate insulating material, suitable for use in applications where a tough, fire resistant, heat insulating, electrical insulating, and corrosion resistant material is desirable. The calcium silicate insulating material is produced by com... | 03/22/2005 |
| 6802896 | Concrete aggregate The present invention relates generally to a method of forming a lightweight fly ash aggregate together with the resultant fly ash aggregate. The invention further relates to various aspects of the method of forming the lightweight fly ash aggregate including method... | 10/12/2004 |
| 6638354 | Precipitated silicas, silica gels with and free of deposited carbon from caustic biomass ash solutions and processes Disclosed are amorphous precipitated silicas, silica gels, and amorphous carbons derived from biomass and methods of producing them with and without adhered or deposited amorphous carbons produced by acidifying a caustic silicate solution produced by caus... | 10/28/2003 |
| 6632876 | Product for coating the internal surface of a conduit, method and machine using same and conduit coated with same The invention relates to a product for the internal coating of a pipeline component (1), in particular a metal pipeline component, comprising an internal wall (4) of high curvature. This product comprises a solid charge and a liquid. The liquid is a solut... | 10/14/2003 |
| 6409817 | Fine-celled foam composition and method having improved thermal insulation and fire retardant properties Disclosed is a rigid fine-celled light-weight foam composition and a method of producing it which has improved retention of liquids by absorption/adsorption which improves the thermal insulation and fire retardant properties of the fine-celled foam partic... | 06/25/2002 |
| 6375735 | Precipitated silicas, silica gels with and free of deposited carbon from caustic biomass ash solutions and processes Disclosed are amorphous precipitated silicas, silica gels, and amorphous carbons derived from biomass and methods of producing them with and without adhered or deposited amorphous carbons produced by acidifying a caustic silicate solution produced by caus... | 04/23/2002 |
| 5908501 | Composition and a method for preventing dustfall from material A coating composition for preventing or reducing the amount of labile particulate matter released from a surface of a material which comprises a water soluble alkali metal silicate, or acrylic polymer latex and a surfactant. The coating composition is par... | 06/01/1999 |
| 5866754 | Method and apparatus for processing and exploiting waste by transforming it into materials that are non-polluting and reusable According to the invention, apparatus for processing and exploiting previously ground-up waste (1) that has had any ferrous metal content cleared therefrom and that has a water content lying in a given range, comprises a reaction chamber (21) enabling min... | 02/02/1999 |
| 5843222 | Modified cement and concrete compositions A cementitious composition comprising 0.1 to about 7.5 percent by weight of a solid residual oxidation product from the combustion of an aqueous emulsion of a naturally occurring asphalt from the Orinoco Belt of Venezuela which contains from about 100 to ... | 12/01/1998 |
| 5824147 | Silicate compound The invention relates to a silicate compound having at least one alkaline oxide and silicon dioxide-containing amorphous binder matrix and also containing oxides from the aluminum, calcium, titanium, magnesium, zirconium, and/or boric oxide group. To prov... | 10/20/1998 |
| 5820668 | Inorganic binder composition, production and uses thereof An inorganic binder composition has a first constituent which is a poly(sialate) or a poly(sialate-siloxo) admixed with a second constituent which has one or more of: fly ash F, fly ash C, fumed silica, Al2 O3, pozzolan, ground slag,... | 10/13/1998 |
| 5810922 | Hardening composition and hardened product The present invention is directed to a hardening composition characterized by comprising (A) a slag composition containing 0 to 37 wt. % of CaO, 23 to 90 wt. % of SiO2, and 0 to 40 wt. % of Al2 O3 and 0.1 to 50 wt. % of on... | 09/22/1998 |
| 5714000 | Fine-celled foam composition and method Disclosed is a rigid fine-celled foam composition and a method of producing it. The foam composition is nontoxic, environmentally friendly, has improved absorption/adsorption and retention of liquids, is not as hard as prior art foams, does not include po... | 02/03/1998 |
| 5616160 | Process for vitrifying incinerator ash The invention relates to a process of eliminating high chloride-containing incinerator ash and incinerator ash-residue mixtures, without generating excessive heavy metal-containing effluents during the actual vitrification of the ash. The process involves... | 04/01/1997 |
| 5601643 | Fly ash cementitious material and method of making a product Rapid curing, high strength cementitious binder mixtures are provided containing fly ash and an alkali metal or alkaline earth metal silicate binder that has a weight ratio of SiO2 :M2 O of about 0.20:1 to about 0.75:1 wherein M is s... | 02/11/1997 |
| 5583079 | Ceramic products, of glass, fly ash and clay and methods of making the same A ceramic kiln-fired product which comprises glass, fly ash, and a clay binder. Further provided is a method for preparing raw material suitable for forming a shaped, kiln-fired, ceramic product. The method comprises mixing glass, fly ash, and a clay bind... | 12/10/1996 |
| 5562767 | Manufactured aggregate composite Manufactured aggregates and/or composites having incorporated therein an asphaltic oxidation product.... | 10/08/1996 |
| 5556457 | Recovery of steel plant revert materials through cementitious agglomeration A method of recovering steel plant waste revert materials including blast furnace flue dust and sludges involves mixing the revert materials with water to provide a total moisture content of about 14-20% by weight, then adding Portland cement as a sole bi... | 09/17/1996 |
| 5549419 | Grouting liquid for injection into a ground A suspension-type grouting liquid for injection into a ground includes sodium aluminate having a mol ratio of 10 or more; and slag, wherein the mol ratio of sodium aluminate is defined as molar concentration of Na2 O/molar concentration of Al | 08/27/1996 |
| 5539140 | Method for obtaining a geopolymeric binder allowing to stabilize, solidify and consolidate toxic or waste materials The method of the invention provides a geopolymeric binder in powder, used for the ultra rapid treatment of materials, soils or mining tailings, containing toxic wastes. Said geopolymeric binder has a setting time equal to or greater than 30 minutes at a ... | 07/23/1996 |
| 5482549 | Cement, method of preparing such cement and method of making products using such cement A homogeneous dry particulate cement mixture in ready-to-use form is provided, which comprises ground blast-furnace slag having a specific surface area of 500-750 m2 /kg and ground fly ash having a specific surface area of 500-750 m2... | 01/09/1996 |
| 5378278 | Cement compositions for temporary structures A cement composition for temporary, environmentally sound structures, including berms for erosion and flood control, comprising portland cement, flyash, sodium silicate, water and aggregate in predetermined amounts to obtain a pumpable cement composition ... | 01/03/1995 |
| 5352509 | Insulating product of mineral fibre wool, intended in particular for heat insulation of pipes and method for preparing this product The invention relates to a heat insulation product of mineral fiber wool. The curable binding agent of the product is an aqueous suspension containing water glass and slag. The slag reacts hydraulically with the alkalis or the water glass yielding water r... | 10/04/1994 |
| 5349118 | Method for obtaining a geopolymeric binder allowing to stabilize, solidify and consolidate toxic or waste materials The method of the invention provides a geopolymeric binder in powder, used for the ultra rapid treatment of materials, soils or mining tailings, containing toxic wastes. The geopolymeric binder has a setting time equal to or greater than 30 minutes at a t... | 09/20/1994 |
| 5302331 | Waste treatment process A process for recycling household waste, garbage or trash into useful articles including in one preferred embodiment the steps of collecting the waste material, feeding the waste material into a pulverizer to convert the material to a powdery mass, adding... | 04/12/1994 |
| 5277826 | Lime and fly ash stabilization of wastewater treatment sludge This invention provides a process meeting the EPA's PFRP standard for WWTS treatment thereby producing a readily usable end-product in either soil-like form or semi-impermeable low load bearing, mass form. The process includes mixing WWTS with lime and fl... | 01/11/1994 |
| 5217624 | Method for the disposal of aqueous sewage sludge A combination of a dehydration process for dehydrating sewage sludge by mixing a quicklime-containing material with the sludge, a cement conversion process for introducing the solids produced by the dehydration process into a cement kiln with other cement... | 06/08/1993 |
| 5207910 | Combined filtration and fixation of heavy metals The present invention describes a filter medium and a method of filtering metals from liquids, such as waste water, in which the metals are filtered from the liquids and are chemically fixed in the resulting filter cake in a nonhazardous and nontoxic form... | 05/04/1993 |
| 5188791 | Concrete composition for the manufacture of moulds, mould and process for the manufacture of a mould Compound concrete composition for the manufacture of moulds, comprising: (1) a binder which comprises an alkaline-earth mineral substance, a constituent made up of fine particles of a compound other than an oxide, 90% of which have a particle size of betw... | 02/23/1993 |
| 5147459 | Cementitious products Macro defect free cementitious products are obtained by curing or firing a cementitious composition comprising water, a reactive filler and a water soluble alkali metal silicate. The products show good strength and heat and water stability, by contrast wi... | 09/15/1992 |
| 5106510 | Combined filtration and fixation of heavy metals The present invention describes a filter medium and a method of filtering metals from liquids, such as waste water, in which the metals are filtered from the liquids and are chemically fixed in the resulting filter cake in a nonhazardous and nontoxic form... | 04/21/1992 |
| 5092932 | Method of producing active mineral additive for binding materials Initial granulated blast furnace or phosphatic slag is subjected to heat treatment at a temperature of 1000°-1200° C. in oxidizing gas atmosphere to produce an active mineral additive for binding materials.... | 03/03/1992 |
| 5084102 | Cement, method of preparing such cement and method of making products using such cement A cement based on blast-furnace slag and fly ash, characterized in that the cement is a homogeneous dry particulate mixture in ready-to-use form, which comprises blast-furnace slag having a specific surface area of 500-650 m2 /kg and fly ash in... | 01/28/1992 |
| 5084101 | Process for the preparation of an open-pore foam from essentially inorganic components A composition for the production of an open-pore foam product from essentially inorganic components contains, in addition to known components, a rock-forming solid substance, a curing agent, a foaming additive, and an at least partly alkali-soluble protei... | 01/28/1992 |
| 5078795 | In-situ formation of soluble silicates from biogenetic silica in chemical fixation/solidification treatment of wastes Disclosed is the solidification and chemical fixation of wastes using biogenetic primarily amorphous silica to the waste at ambient temperature and pressure in the presence of a strong alkali and sufficient water in the waste which converts the biogenetic... | 01/07/1992 |
| 5059251 | Injection product for sealing and/or consolidating soils and building materials, and a method for its employment Impermeabilization and/or consolidation product for soils and building materials, usable by injection, characterized by the fact that it is obtained by mixture of a compound of slag in suspension in water and of a silica liquor having a ratio of SiO2... | 10/22/1991 |
