Mortars and cements having improved freeze-thaw properties and method of achieving same
Patent 4293343 Issued on October 6, 1981. Estimated Expiration Date: 
November 13, 1999. 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.
November 13, 1999. 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 References 2681863 3062670 3147127 3289371 Water soluble sizing for glass fibers and glass fibers sized therewith Method and apparatus for producing shaped glass fiber reinforced cementitious articles Patent #: 4187275 InventorAssigneeApplicationNo. 06/093770 filed on 11/13/1979US Classes:106/692, Aluminous cement (e.g., high alumina, calcium aluminate, etc.)106/694, Soil, diatomaceous earth, clay, shale, slate, or rock-type material containing or material for treating soil or earth (e.g., soil stabilization, etc.)106/706, Soil, diatomaceous earth, clay, shale, slate or rock containing or material for treating soil or earth (e.g., soil stabilization, etc.)106/711, Mineral fibers or glass fibers containing (e.g., slag wool, cotton wool, mineral wool, rock wool, etc.)106/714, Slag containing (e.g., blast furnace slag, etc.)501/35FibersExaminersPrimary: Poer, JamesAttorney, Agent or FirmInternational ClassesC04B 28/02 (20060101)C04B 28/00 (20060101) AbstractInorganic mortars, cements, and concrete are subject to crazing, cracking and spalling when subjected to alternate freezing and thawing. The present invention significantly decreases this affect by providing a network of tiny glass filaments having a hydrophilic surface throughout the mortars and cements. Preferably there should be more than approximately 675 lineal inches of network forming filament per cubic inch of mortar. | |
