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| Number | Title | Issue Date |
| 7338925 | Zeolite compositions having enhanced compressive strength Wellbore treating fluids that include zeolite, an activator, and an organic acid or salt thereof are provided. ... | 03/04/2008 |
| 7326478 | Cement binder based plate The invention concerns a plate whereof the body comprises a binder containing Portland cement, a sulphoaluminous clinker and a calcium sulphate source: the binder comprises, by weight 30 to 80% of Portland cement, 20 to 70% of sulphoaluminous binder, 5 to 20% of a c... | 02/05/2008 |
| 7303015 | Cementitious compositions containing interground cement clinker and zeolite Methods and compositions for wellbore treating fluids, especially cementitious compositions that include interground cement clinker and zeolite, with and without gypsum. ... | 12/04/2007 |
| 7273634 | Coatings and additives containing ceramic material A coating for support beams in buildings to protect their structural integrity in case of high heat events, for roofs and the like to inexpensively provide protection from ultraviolet light, for wood or steel substrates to inexpensively provide flame or chemical res... | 09/25/2007 |
| 7240867 | Processing system for manufacturing composite cementitious materials with reduced carbon dioxide emissions A processing arrangement for manufacturing composite cementitious materials, such as hydraulic blended cements, with significantly reduced Portland clinker minerals content. The arrangement includes a milling unit for pregrinding supplementary cementitious materials... | 07/10/2007 |
| 7169225 | Anhydrite cement compositions and procedures for manufacture The present invention describes improved anhydrite cementitious compositions that control or avoid ettringite formation, as well as procedures for manufacture. These compositions exhibit good compression resistance in early stages, good resistance to abrasion and go... | 01/30/2007 |
| 7164103 | Electrical heating resistance element An electrical resistance heating element having a glow zone and two power supply terminals. The glow zone of the element is tubular. A tubular union is provided between each of the power supply terminals and a respective end of the glow zone, wherein the inner diame... | 01/16/2007 |
| 7041167 | Low density accelerant and strength enhancing additive for cementitious products and methods of using same Disclosed are concrete and fiber cement formulations and products comprising low-density calcium silicate hydrate, and methods for producing these formulations and products. The disclosed formulations exhibit accelerated curing times. Other advantages of the disclos... | 05/09/2006 |
| 7029527 | Quick binder for self compacting concrete, use and application of same A binder for self-compacting concrete includes, in dry weight of the-binder, 70 to 90% of Portland cement, 4 to 16% of calcium aluminate, 4 to 14% of calcium sulphate, an accelerator and a retarder, 0 to 2% of Ca(OH)2 and at least an additive with a water reducer. T... | 04/18/2006 |
| 6997984 | Cement admixture A burned product containing 100 parts by weight of C2S, 10 to 100 parts by weight of C2AS, and 20 parts by weight or less of C3A; a cement admixture prepared by grinding the burned product; and a cement containing 100 parts by weight... | 02/14/2006 |
| 6966376 | Method and composition for downhole cementing Disclosed is a method to increase the bonding forces of a hydraulic cement to a subterranean pipe (such as a casing) by the addition of at least one cementitious expansive agent to increase the bulk volume of the cement plug and a latex. The method includes position... | 11/22/2005 |
| 6960253 | Method of forming hydraulic cement protective coatings Dry mixes for hydraulic cement coatings for masonry, above ground concrete structures and below ground concrete structures. Hydraulic cement, sand and particular aggregates are combined to form the dry mix, which is combined with a controlled quantity of a water bas... | 11/01/2005 |
| 6936098 | Process for producing blended cements with reduced carbon dioxide emissions A process for producing blended cement in which the cement contains Portland Cement mixed thoroughly with a microfiller, and possibly a water reducing agent, to provide a dry cement mixture, and fine supplementary cementitious materials selected from the materials b... | 08/30/2005 |
| 6913819 | Cementitious veneer and laminate material A cementitious veneer and laminate composition is provided. The cementitious laminate composition includes a substrate, a primer layer applied to the substrate, the primer layer comprising a mixture of polyvinyl alcohol catalyst, Portland cement, and sand; and a cem... | 07/05/2005 |
| 6908508 | Settable fluids and methods for use in subterranean formations The present invention relates to subterranean operations, and more particularly, to settable fluids comprising vitrified shale and hydrated lime and methods of using such settable fluids in subterranean applications. In an exemplary embodiment, the settable fluids o... | 06/21/2005 |
| 6902614 | Perlited Portland cement plaster joint compound additive with lime A composition and method for treating a surface is described. In one embodiment, the composition comprises about 10% to 90% by weight of cement, about 10% to 90% by weight of plaster, about 0.01% to about 20% by weight of lime, and about 0% to about 30% by weight of... | 06/07/2005 |
| 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 |
| 6695910 | Sulfoaluminous clinker without iron and without free lime, its process of preparation and its use in white binders The lightly colored sulfoaluminous clinker contains: more than 55% by weight of calcium sulfoaluminate phase (C4 A3 S), more than 10% by weight of belite phase (C2 S), less than 10% by weight of anhydrite (CS), and contain... | 02/24/2004 |
| 6645289 | Complex admixture and method of cement based materials production The present invention relates to admixtures production and to a method of application of the admixtures in cement and concrete technology. The method allows production of high-strength and high durable cement based systems, as well as cement systems with ... | 11/11/2003 |
| 6620487 | Structural sheathing panels A reinforced, lightweight, dimensionally stable panel capable of resisting shear loads when fastened to framing equal to or exceeding shear loads provided by plywood or oriented strand board panels. The panels employ a core of a continuous phase resulting... | 09/16/2003 |
| 6607592 | Antishrinkage agent for concrete or mortar The invention concerns a composition in dry state for mortar or concrete, comprising a cement and an antishrinkage agent. The invention is characterized in that the antishrinkage agent consist of a calcium sulphate, particularly an anhydrous calcium sulph... | 08/19/2003 |
| 6596074 | Cementitious product with phosphorescense The present invention pertains to the use of phosphorescent pigments in cementious materials and allied applications, specifically in use for tile mortars and grouts, pool plasters, wall plasters, cementious roofing materials, cementious surface coatings,... | 07/22/2003 |
| 6447597 | Hydrated calcium aluminate based expansive admixture An additive, a mixture incorporating the additive and a method of formulating a mortar incorporating the additive. The additive is based on calcium sulfoaluminate composed of C3 AH6 and CAH10 where C=calcium oxide, A=alumi... | 09/10/2002 |
| 6395205 | Method of manufacturing an aerated autoclaved concrete material A method for manufacturing an aerated autoclaved concrete material. A quick-stiffening mixture is prepared by combining a silica containing material, quicklime, a rising agent, gypsum, cement and water. The mixture is deposited into a mold and is allowed ... | 05/28/2002 |
| 6241816 | Method of treating cement clinker A method of treating cement clinker by grinding the clinker in a tubular mill while charging water, gypsum, and, optionally, also a water-reduction agent to the mill at the same time. The water has a pH of from about 9 to about 13. A microfill agent and/o... | 06/05/2001 |
| 6241815 | Gypsum-cement system for construction materials A composition for use in construction materials, which may be substituted for high performance concrete, patching materials, joint compounds, and the like, such as backer boards or panels, which includes a settable calcium sulfate, preferably a hemihydrat... | 06/05/2001 |
| 6238476 | Method of curing drywall compound A method of reducing the curing time of drywall joint compound, and thereby reducing the time required to finish drywall joints or to repair plaster walls, includes adding a predetermined amount of a drying agent to a conventional ready-mixed drywall join... | 05/29/2001 |
| 6197107 | Gypsum-rich Portland cement The present invention is of a cementitious composition containing OPC, calcined gypsum, a source of amorphous silica and a source of amorphous alumina. The ratio of calcium sulfate hemihydrate to OPC is 0.7:1.0 to 1.4:1.0, the ratio of amorphous silica an... | 03/06/2001 |
| 6168658 | Composition for manufacturing logs for handling pallets or building elements such as panels, rubble stone or the like A composition for manufacturing logs for handling pallets or building elements. The composition utilizes small-size ligneous waste associated with cement, plaster of pairs, lime, silica and water, the quantities of these various components being as follow... | 01/02/2001 |
| 6162288 | Sprayable fireproofing composition Improved sprayable gypsum-based fireproofing composition comprising a lightweight aggregate and a set retarding agent in an amount effective to delay the setting of said composition for at least 24 hours and preferably for at least 72-96 hours without cau... | 12/19/2000 |
| 6149724 | Hydraulic cement with accelerated high strength development A method of manufacturing cements based on calcium sulfoaluminate by forming a clinker through calcining a selection of typical cement precursor raw materials to temperatures of more than 1200° C. in an industrial kiln, preferably with a preheater (typic... | 11/21/2000 |
| 6033591 | Cellular thermal insulating material based on diatomaceous earth and method for its production A thermal insulating material with a cellular structure is disclosed which comprises a bound SiO2 -containing material converted to at least 90% into a tobermorite phase. The SiO2 -containing material is diatomaceous earth, the densi... | 03/07/2000 |
| 6033468 | Interground white blended cement A composition comprises anhydrous alumino-silicate, diatomaceous earth, and/or other natural pozzolans, white clinker, and white gypsum interground together and in a ratio by weight of 5-20% anhydrous alumino-silicate, diatomaceous earth, and/or other nat... | 03/07/2000 |
| 6007620 | Process to make interground, white, blended cement A process of manufacturing blended white cement comprises the following steps: (a) providing anhydrous alumino-silicate, diatomaceous earth, and/or other natural pozzolans; (b) providing white clinker; (c) providing gypsum; and (d) combining and grinding ... | 12/28/1999 |
| 5997632 | Blended hydraulic cement The present invention is directed to blended hydraulic cement compositions which are formed with subbituminous fly ash. In one embodiment, the cement composition comprises from about 0.1 wt. % to about 7 wt. % of a retarding agent; from about 0.1 wt. % to... | 12/07/1999 |
| 5979054 | Method of forming a sidewall for a reactor for oxidizing volatile or semi-volatile organic compounds A method of forming a sidewall for a reactor for oxidizing volatile or semi-volatile organic compounds, the sidewall being reactive with gaseous oxidation products produced by the oxidation of the volatile or semi-volatile organic compounds, includes, i) ... | 11/09/1999 |
| 5958131 | Cementitious compositions and their uses A composition suitable for adding to water to produce a water-resistant hydraulic solid which composition comprises components (a), (b) and (c) as follows: (a) calcium sulphate hemihydrate; (b) portland cement; (c) calcined clay having a pozzolanic activity; w... | 09/28/1999 |
| 5908502 | Limestone filled Portland cements Limestone filled Portland cement wherein the fineness of limestone particles ranges from 5,000 to 12,000 Blaine and the fineness of clinker particles ranges from 1,500 to 3,000 Blaine.... | 06/01/1999 |
| 5891239 | Quick-setting cement containing clinker based on calcium fluoro-aluminate mixed with lime The present invention regards a particularly quick-setting Portland cement clinker containing calcium fluoro-aluminate (11CaO.7Al2 O3.CaF.sub.2) mixed with lime that has not undergone the burning process of the clinker.... | 04/06/1999 |
| 5858083 | Cementitious gypsum-containing binders and compositions and materials made therefrom Cementitious binders include calcium sulfate beta-hemihydrate, a cement component comprising Portland cement, and either silica fume or rice-husk ash. The silica fume or rice-husk ash component is at least about 92 wt % amorphous silica and has an alumina... | 01/12/1999 |
