Cementitious materials including stainless steel slag and geopolymers
Patent 7141112 Issued on November 28, 2006. Estimated Expiration Date: 
March 21, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 21, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInorganic binder composition, production and uses thereof Patent #: 5820668 InventorApplicationNo. 11085478 filed on 03/21/2005US Classes:106/697, Organic garbage, refuse sewage, or waste material containing or treating (other than sulfite waste liquor)106/714, Slag containing (e.g., blast furnace slag, etc.)106/789, Slag106/790, Organic material, soil, diatomaceous earth, clay, slate, shale, or rock type material containing or material for treating soil or earth (e.g., soil stabilization, etc.)106/707, With slag, coke, cinder, stack dust, kiln dust or flue dust106/713, Portland type cement106/600, Alkali metal silicate containing106/810Organic acid or derivativeExaminersPrimary: Wood, Elizabeth D.Attorney, Agent or FirmInternational ClassesC04B 14/00C04B 18/06 AbstractCementitious materials including stainless steel slag and geopolymer can be added to conventional cement compositions, such as Portland cement, as a partial or total replacement for conventional cement materials. The stainless steel slag may comprise silicates and/or oxides of calcium, silicon, magnesium, iron, aluminum, manganese, titanium, sulfur, chromium and/or nickel. The geopolymer may comprise aluminum silicate and/or magnesium silicate. In a preferred embodiment, curing of concrete materials by the action of water on the cementitious materials is enhanced with the addition of an activator component selected from calcium bromide, calcium nitrate, calcium nitrite, calcium chloride, calcium oxide, and sodium bromide.Field of SearchOrganic garbage, refuse sewage, or waste material containing or treating (other than sulfite waste liquor)Slag containing (e.g., blast furnace slag, etc.) Slag Organic material, soil, diatomaceous earth, clay, slate, shale, or rock type material containing or material for treating soil or earth (e.g., soil stabilization, etc.) With slag, coke, cinder, stack dust, kiln dust or flue dust Portland type cement | |
