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| Number | Title | Issue Date |
| 7473311 | Cementitious composition The invention is an improved cementitious mixture used to form structural components that are strong, lightweight, heat and fire resistant, and very economical to produce. The material includes a mixture of cement, water, ribbon-like virgin polyethylene strips and a... | 01/06/2009 |
| 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 |
| 7147707 | Composite for building material, and method of manufacturing building material using the same To provide a composite for a building material capable of manufacturing a building material that is harmless to living environment and global environment and can be recycled. The composite for a building material contains diatomaceous earth, waste lumber, and inorga... | 12/12/2006 |
| 7086466 | Use of substantially hydrated cement particulates in drilling and subterranean applications The present invention relates to substantially hydrated cement particulates. More particularly, the present invention relates to compositions comprising substantially hydrated cement particulates and associated methods of use in drilling and subterranean application... | 08/08/2006 |
| 7033430 | Cement-containing compositions and method of use A settable fluid cementitious composition which is fluid for sufficient time to be suitable for use in a flexible container to provide support in a mine said composition comprises (i) Portland cement in an amount from at least about 8% preferably 10%, (ii) a water s... | 04/25/2006 |
| 7033977 | Compositions and methods for sealing formations The present invention generally relates to compositions of matter and methods of using those compositions. More particularly, and as part of one of the preferred embodiments, the present invention relates to compositions and methods of use of fluids useful for seali... | 04/25/2006 |
| 6989057 | Zeolite-containing cement composition A method and cement composition is provided for sealing a subterranean zone penetrated by a well bore, wherein the cement composition comprises zeolite, cementitious material, and water sufficient to form a slurry. ... | 01/24/2006 |
| 6964302 | Zeolite-containing cement composition Methods and cement compositions are provided for sealing a subterranean zone penetrated by a wellbore, wherein the cement composition comprises zeolite, cementitious material, and a mixing fluid. ... | 11/15/2005 |
| 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 |
| 6478870 | Process aid for preparing a flowable slurry A process for preparing a flowable slurry comprising mixing 25-70 wt. % water; an alkaline material selected from the group consisting of chlorosilicon manufacturing byproducts, direct process residue gels, cement kiln dust, and mixtures thereof; and a pr... | 11/12/2002 |
| 6409818 | Disposable water resistant foamed concrete cover for bulk salt The present invention is directed to a composition and method for forming an inexpensive, semi-permanent cured foamed cementitious cover layer over deicing salt which is stored outdoors in large bulk mounds or piles and a salt pile or mound covered with s... | 06/25/2002 |
| 6296699 | Inorganic binders employing waste glass The present invention relates to a binder composition comprising a glass powder with a particle size of at least less than 0.15 mm and an alkali activator containing at least one alkali metal and at least one silicate. Preferably, a sodium silicate with a... | 10/02/2001 |
| 6051634 | Water-dispersible or water-soluble polyurethanes as additives for building materials Use of water-dispersible or water-soluble polyether-urethanes, which optionally contain isocyanate groups, as additives for inorganic binders in the preparation of a building material, particularly a high-density or high-strength mortar or concrete compos... | 04/18/2000 |
| 5948156 | Supplementary agent for mineral binder systems A supplementing agent for mineral binder systems is disclosed, especially for the construction industry, containing at least 1 finely divided, swellable layer silicate and possible at least 1 other additive, the proportion of the swellable layer silicate ... | 09/07/1999 |
| 5852077 | Lightweight, waterproof, insulating, cementitious compositions and methods for forming and using such compositions A lightweight, cementitious composition and method which includes a noncementitious filler, Portland cement, bentonite, diatamaceous earth and lime. The noncementitious filler may be sawdust, rubber chips, flyash or combinations of two or more of these in... | 12/22/1998 |
| 5820302 | Stabilizing soil and aggregate mixtures and structures A method of stabilizing soil and aggregate for structural purposes including the step of mixing with water: (a) a soil aggregate base material; (b) a stabilization composition comprising: (i) an alkali metal silicate or other suitable gel precursor, and (... | 10/13/1998 |
| 5656075 | Control of expansion in concrete due to alkali silica reaction A cement composition including spodumene which has been heated to at least 1000° C. which is capable of inhibiting expansion of the concrete due to the alkali-silica reaction. The present invention also provides a method of reducing expansion in cement c... | 08/12/1997 |
| 5637412 | Compressed hydraulically bonded composite articles The present invention relates to hydraulically bonded cement compositions and methods. More particularly, the present invention is directed to novel compositions and methods of hydrating hydraulic cement without mechanical mixing of the cement and water. ... | 06/10/1997 |
| 5635292 | Compressed low density hydraulically bonded composite articles Incorporation of solid removable aggregates into powdered cement which later completely dissolve, evaporate, volatilize, or melt leaving voids in the cement composition is discussed. Cementitious articles are prepared by manipulating powdered hydraulic ce... | 06/03/1997 |
| 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 |
| 5565026 | Compositions which set in the presence of water and their use A 2-component composition is disclosed which contains an inorganic binder as well as a curing agent composed of water or an aqueous solution. The composition also contains substances which regulate solidification and curing, as well as, if necessary, conv... | 10/15/1996 |
| 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 |
| 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 |
| 5391245 | Fire-resistant building component A method of, and compositions for, the making of a fire-resistant door core assembly. Doors produced from the door core assemblies. In the making of a door core assembly, an aqueous slurry containing gypsum cement and diatomaceous earth is prepared. The s... | 02/21/1995 |
| 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 |
| 5378277 | Injection product for fine sands and other porous matter An injection product for fine sands and other porous matter. This product comprises, on the one hand, cement and an alkaline silicate and, on the other hand, an agent inhibiting the reaction between the above two constituents. Application is in the field ... | 01/03/1995 |
| 5352288 | Low-cost, high early strength, acid-resistant pozzolanic cement A low cost cement composition that can be admixed with water and hydrothermally closed cured to give acid-resistant products of high compressive strength consisting essentially of, in parts by weight, 1 to 1.5 parts of a calcium oxide material containing ... | 10/04/1994 |
| 5151203 | Composition and method for cementing a well A composition for and method of performing primary cementing operations is disclosed. The method comprises the use of a water slurry of a thixotropic cementing composition which rapidly develops sufficient static gel strength to reduce if not eliminate an... | 09/29/1992 |
| 5147565 | Foamed well cementing compositions and methods Foamed well cementing compositions and methods of performing cementing operations in salt containing subterranean environments are provided. The compositions are comprised of hydraulic cement, salt water, dispersed gas and a foaming agent selected from th... | 09/15/1992 |
| 5130051 | Composition to encapsulate chromium, arsenic and other toxic metals in wastes A composition for treating toxic metals in solid waste, sludge or slurry is provided. The composition includes a reducing agent such as ferrous sulfate or sodium sulfite and a fixative containing solid calcium oxide or solid magnesium oxide. The compositi... | 07/14/1992 |
| 5076850 | Process for treating metal chlorides Process for making aggregate suitable for use as a road base material comprising: (a) mixing metal chlorides with alkaline substance selected from the group consisting essentially of at least one cementitious material and optionally about 0.1-50%, based o... | 12/31/1991 |
| 4867791 | Process for subsurface reconstruction of buildings reinforced with constructional steel For the subsurface reconstruction of buildings reinforced with constructional steel, the damaged concrete is drilled into until behind the corroded reinforcement, a solution of a modified alkali silicate having a Me2 O:SiO2 ratio of ... | 09/19/1989 |
| 4865761 | Compositions and method for control and clean-up of hazardous acidic spills This invention relates to novel composition and methods for neutralization and solidification of hazardous acidic spills. A dry particulate composition of varying reaction grades of alkaline compounds and varying grades of absorptive materials may be used... | 09/12/1989 |
| 4697063 | Electric heating element An electric heating element includes a core of electrically conductive material connected to a source of alternating current and has a shell of impermeable concrete. The core is moulded from a mixture of graphite powder, silicate of potassium, cement and ... | 09/29/1987 |
| 4659511 | Method for solidifying radioactive waste A process for solidifying radioactive wastes, which comprises adding, to pellet or dissolved radioactive wastes, an alkali metal silicate as a filler, silicic acid, carbonic acid or an alkaline earth metal or polyvalent metal salt thereof as a hardener, a... | 04/21/1987 |
| 4622175 | Process for solidifying radioactive waste A process for solidifying a radioactive waste by using an alkali silicate composition prepared by using as silicate source amorphous reactive silica obtained from acid earth by acid treatment as solidifying agent can give a solidified body excellent in we... | 11/11/1986 |
| 4600514 | Controlled gel time for solidification of multi-phased wastes A method of controlling the gelling time during the solidification of multi-phased liquid and semi-liquid wastes comprising admixing the waste with cement, a powdered alkali metal silicate and a liquid alkali metal silicate.... | 07/15/1986 |
| 4461644 | Light weight composition and a method of sealing a subterranean formation A light weight cement composition made from sea water and a method of sealing a subterranean formation utilizing the light weight cement composition. The light weight cement composition comprises a hydraulic cement, a silicate compound, sea water and a hy... | 07/24/1984 |
| 4450009 | Method of preparing a light weight cement composition from sea water A method of preparing a light weight cement composition from sea water. The light weight cement composition is prepared by adding a hydroxide compound to sea water and subsequently adding a hydraulic cement and silicate compound to the sea water. Optional... | 05/22/1984 |
| 4410365 | Binder A binder comprises granulated blast furnace slag, a compound of an alkali metal, and an additive selected from the group consisting from portland cement clinker sodium sulphate, potassium sulphate. The components are taken in the following ratio, % by wei... | 10/18/1983 |
