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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 |
| 7135068 | Method for oxidizing treatment of steel works slag and resulting LD slag A treatment method includes injecting oxygen into the liquid steel works slag, adding and dissolving in the slag alumina and lime sources, and optionally silica and iron sources and cooling the slag until solidification, the additions being carried out in such amoun... | 11/14/2006 |
| 7097706 | Non-heating clay composites for building materials The object of this invention is to provide a non-calcined clay composite used as building materials capable of promoting humans' health and being desirably used irrespective of location, which is improved in terms of strength without calcining clay. Because the non-... | 08/29/2006 |
| 7008478 | Composite of consolidation-hardening pile for soft ground The present invention relates to a composite of consolidation-hardening pile for soft ground and in which a composition ratio of an aggregate:a quicklime:an additive is 50–60 wt %:20–25 wt %:20–25 wt %, and the additive is an admixture made by mixing a powder ... | 03/07/2006 |
| 6843843 | Underwater immersion block and method to produce the same It is an object of the invention to effectively absorb and remove CO2 in an exhaust gas generated during an industrial process for reducing an amount of exhausting CO2 into the atmospheric air. The exhaust gas containing CO2 is blown... | 01/18/2005 |
| 6835244 | Use of organic carbon-containing minerals A synthetic slag is produced by melting the mineral content of an organic carbon-containing mineral, for example, oil shale or tar sands, with a source of lime such as cement kiln dust. The organic carbon, especially hydrocarbon, content of the mineral is oxidized b... | 12/28/2004 |
| 6793851 | Process for manufacturing infrastructures based on vitrified blast-furnace slag and additive used A process for constructing infrastructures, in which aggregates, vitrified blast-furnace slag, a pulverulent activator and water are mixed together, the mix is spread out over the ground, compacted and left to harden, and in which a particulate slag and a ready-prep... | 09/21/2004 |
| 6790276 | Formula for plaster A plaster formulation for forming a non-shinny, slow-drying plaster, in which color may be blended and multiple color coats applied to form a colored surface with the appearance of depth, age, and texture. ... | 09/14/2004 |
| 6755905 | Use of high carbon coal ash A synthetic slag is produced by a high temperature combustion reaction between coal ash having a high carbon content, and a source of lime such as cement kiln dust. The carbon content of the coal ash is oxidized by oxygen gas, which typically is derived from air or ... | 06/29/2004 |
| 6676747 | Method for producing puzzolanic binders for the cement industry from steel slags using a reduction metal bath In a method for producing puzzolanic or hydraulic grinding additives for the cement industry from basic oxidic slags, in particular steel slags, using a metal bath for the reduction of metal oxides contained in the slags, the basicities of the liquid slag... | 01/13/2004 |
| 6673145 | Process for manufacturing a soil treatment composition, soil treatment compositions and use of such compositions The present invention relates to a process for manufacturing a soil treatment composition, to soil treatment compositions and to the use of such compositions. The process according to the invention comprises a step of selecting one or more slags having a ... | 01/06/2004 |
| 6506249 | Delayed-setting concrete The invention relates to a delayed-setting concrete based on blast furnace slag. The invention further relates to a method of initiating the setting of said concrete.... | 01/14/2003 |
| 6491751 | Method for manufacturing cement using a raw material mix including finely ground steel slag A method is provided for manufacturing cement from a raw material mixture which includes finely ground steel slag. Selected quantities of steel slag and other raw materials are mixed with each other and supplied to a raw mill. The steel slag and other raw... | 12/10/2002 |
| 6447599 | Method of limiting the release of organic materials into the environment during the making of foundations, and concrete which can be used in said method The present invention relates to a method of limiting the release of organic materials into the environment during the making of foundations, according to which a concrete is used which is based on blast furnace slag ground to a fineness of between about ... | 09/10/2002 |
| 6409820 | Hydraulic binder A hydraulic binder containing a glassy bulky slag milled to a fineness above 5000 cm2. Blaine and wherein the latently hydraulic blast furnace slag has a glassiness above 93%, contains 34 to 40% SiO2, 34 to 37% CaO and above 9% and p... | 06/25/2002 |
| 6409819 | Alkali activated supersulphated binder The invention describes an activated supersulphated aluminosilicate binder containing aluminosilicates, calcium sulphate and an activator containing alkali metal salts, wherein the aluminosilicates are selected from the group consisting of blast furnace s... | 06/25/2002 |
| 6402833 | Binder for mine tailings A binder for mine tailings and aggregate used as a backfill for an underground void comprises ferrous slag, and cement kiln dust, optionally with lime kiln dust; the binder displays strength characteristics better than or comparable to those achieved with... | 06/11/2002 |
| 6379455 | Chemical agent for improving the engineering properties of soil A chemical agent for improving the engineering properties of soil includes a mixture of cementitious pozzalans (5 to 60% by mass), calcium sulphate (20 to 80% by mass), an oxide of calcium (15 to 50% by mass) and silica oxide (1 to 30% by weight). Monofil... | 04/30/2002 |
| 6231664 | Well sealing compositions and methods The present invention provides improved well sealing compositions and methods. The compositions are basically comprised of slag cement, water, a slag cement set activator, a hardenable epoxide containing material and an epoxide containing material hardeni... | 05/15/2001 |
| 6068055 | Well sealing compositions and methods The present invention provides improved well sealing compositions and methods. The compositions are basically comprised of slag cement, water, a slag cement set activator, a hardenable epoxide containing material and an epoxide containing material hardeni... | 05/30/2000 |
| 5968258 | Method of making cement from base metal smelter slag A method of making cement from base metal smelter slag produced by a nickel, copper, lead or zinc smelter, includes crushing the slag with a source of calcium sulphate to a size of less than about 1/4 inch and heating the mixture to produce a cement, and ... | 10/19/1999 |
| 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 |
| 5711801 | Cement compositions The present invention provides lightweight, fast setting cement compositions and methods which can be utilized in performing a variety of well cementing operations. The cement compositions are basically comprised of slag cement, water sufficient to form a... | 01/27/1998 |
| 5569152 | Buffering of cementitious hazardous waste compositions containing electric arc furnace dust A buffering agent for a cementitious hazardous waste composition, containing electric arc furnace dust (EAFD) and water, includes dolomitic lime, namely either dolomitic quicklime, dolomitic monohydrated lime or dolomitic dihydrated lime. Dolomitic lime s... | 10/29/1996 |
| 5551806 | Process for making cementitious mine backfill in a salt environment using solid waste materials The present invention generally relates to a method for hydraulically backfilling empty mined salt cavities. The method comprises combining at least one pozzolanically active waste material with an effective amount of a cementing agent and brine to form a... | 09/03/1996 |
| 5547505 | Compositions for low heat cements Compositions for low heat cements developed especially for massive concrete works and which exhibit a compressive strength/heat of hydration ratio of at least 7.0 at the age of 13 weeks. One of two inventions provides a powder prepared by mixing CaO, SiO | 08/20/1996 |
| 5494515 | Method and apparatus for using blast-furnace slag in cement clinker production A process and apparatus by which blast-furnace slag can be added to the feedstock materials fed into the feed-end of a rotary cement kiln to form cement clinkers. The blast-furnace slag is crushed and screened to provide blast-furnace slag particles havin... | 02/27/1996 |
| 5472917 | Raw material briquette for mineral wool production and process for its preparation and its use The invention concerns a raw material briquette for mineral wool production containing a mineral raw material as well as a binder therefor. The invention is characterized in that the briquette, as the binder, contains slag which has been activated with an... | 12/05/1995 |
| 5439056 | Coal slag solidification of drilling fluid Drilling fluid is solidified by the incorporation therein of coal slag. In a preferred embodiment lime is also incorporated into said drilling fluid and/or said drilling fluid is a lime drilling fluid. Thus, there is provided a cementitious composition co... | 08/08/1995 |
| 5437890 | Coatings for receptacles The present invention relates to a coating for metallurgical receptacles comprising a slurry of slag fines, lime and water. The coating has proven effective at releasing the skull remaining in metallurgical receptacles after the molten metal has been tapp... | 08/01/1995 |
| 5421880 | Method and apparatus for using steel slag in cement clinker production A process and apparatus by which steel slag can be added to the feedstock materials fed into the feed-end of a rotary cement kiln to form cement clinkers. The steel slag is crushed and screened to provide steel slag particles having a maximum diameter of ... | 06/06/1995 |
| 5340235 | Process for making cementitious mine backfill in a salt environment using solid waste materials The present invention generally relates to a method for hydraulically backfilling empty mined salt cavities. The method comprises combining at least one pozzolanically active waste material with an effective amount of an alkaline earth metal in the form o... | 08/23/1994 |
| 5245122 | Method and mixture for treating electric arc furnace dust A method and a mixture for chemically stabilizing electric arc furnace dust (EAFD) by entrapping the metals inherent in EAFD within a cementitiously hardened product from the mixture. The method includes using the pozzolanic characteristics of EAFD and fo... | 09/14/1993 |
| 5164174 | Detoxification of aluminum spent potliner by thermal treatment, lime slurry quench and post-kiln treatment A method is disclosed for detoxification of aluminum spent potliner by thermal treatment in a rotary kiln while blended with limestone and metal silicates to destroy cyanides and convert the soluble fluoride salts to relatively insoluble calcium fluoride ... | 11/17/1992 |
| 5158835 | Acid rain neutralizing block, method of making such blocks and method of neutralizing acidified surface water Blocks, weighing about 35 lbs., formed of a homogeneous mixture of about 75% gypsum and 25% lime, are strategically placed in surface water that is being damaged by acid rain, where, by timed release of lime, the pH of the water is maintained at about 6.5... | 10/27/1992 |
| 5133806 | Softy mud solidifying agent There is disclosed a softy mud solidifying agent which comprises cement, and at least two members selected from the group consisting of pozzolanic substances, inorganic compounds and organic compounds. The solidifying agent is capable of solidifying dredg... | 07/28/1992 |
| 5073198 | Method of preparing building materials An improved method of making a building material comprising activating slag with an activator of Portland cement, an acidic component and a basic component. The acidic component is a phosphate or a mixture of phosphates in an amount of 2 to 40% by weight ... | 12/17/1991 |
| 5043081 | Method of chemically fixing liquid aqueous sludge by means of a pozzolanic reaction A liquid aqueous sludge is transferred into a cylindrical-conical tank and gitated by blowing in air through a downwardly extending tube. A closed circulation of sludge is established between this main tank and a reagent tank by means of a recycling pump. ... | 08/27/1991 |
| 5026576 | Method and composition for finishing structural building surfaces A method and composition are provided for creating smooth surfaces on building structures, particularly concrete structures. A first constituent is prepared by mixing together quantities of acrylic mortar admix, concrete plaster adhesive, joint compound, ... | 06/25/1991 |
| 4985081 | Method of producing cement or concrete A method of producing cement or concrete, comprising the step of adding fly ash to the cement or concrete at the production stage, the fly ash containing lime and reaction products from the reaction occurring between lime and sulphur oxides in connection ... | 01/15/1991 |
