序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
141 COMPOSITIONS AND METHODS FOR WELL CEMENTING US15319013 2015-06-16 US20170121587A1 2017-05-04 Mickael Allouche; Sebastien Catheline; Alice Chougnet - Sirapian; Nicolas Droger
Methods for cementing a subterranean well and maintaining zonal isolation involve preparing a cement slurry that contains water, an inorganic cement and an expanding agent. The slurry is placed in the annular region between casing and the formation or between two casing strings. After the cement sets, the expanding agent reacts and causes the set cement to be in a state of compression within the annular region. The casing dimensions may fluctuate in response to a temperature change, a pressure change, a mechanical disturbance resulting from a well intervention, or mud contamination or a combination thereof. The expanding agent may further react and maintain a state of compression within the annular region. The state of compression in the annular region may be monitored by acoustic impedance measurements.
142 SEAWATER RESISTANT GROUT MATERIAL COMPOSITION AND METHOD FOR CONSTRUCTING OFFSHORE WIND TURBINE STRUCTURE USING SAME US14895567 2013-07-08 US20160108897A1 2016-04-21 Kyoung Chul KIM; Se Jin KIM; Jae Uk SIM
The present invention provides a seawater resistant grout material composition and a method for constructing an offshore wind turbine structure using the same, the seawater resistant grout material composition comprising: 2˜10 wt % of high strength admixture; 25˜35 wt % of type I Portland cement; 30˜45 wt % of silica sand having a particle size of 30˜60 mesh; 5˜15 wt % of silica sand having a particle size of 60˜100 mesh; and 5˜10 wt % of silica sand having a particle size of 100˜200 mesh, wherein the high strength admixture is obtained by mixing and pulverizing 45˜99 wt % of slag and 1˜55 wt % of anhydrite, thus the present invention has excellent seawater resistance, excellent strength development characteristics at a low temperature, and increased compressive strength and durability to allow withstanding cyclic loads due to wind and wave pressure.
143 Hydraulic composition US14428865 2013-09-23 US09296657B2 2016-03-29 Alessandro Dal Bo; Gianmaria Marinello; Maurizio Pietrobon; Alan Tommasi
The invention relates to a composition comprising, based on the dry weight of said composition, (A) 10 to 70% by weight of one or more hydraulic binder and (B) 20 to 85% by weight of one or more filler, wherein the composition contains 0.05 to 5% by weight, based on the amount of the hydraulic binder, of at least one terpenoid alcohol, wherein the terpenoid alcohol is not terpineol or borneol. Additionally disclosed is a hardened product made by the composition and the use of at least one terpenoid alcohol in a composition, comprising hydraulic binder and filler, to reduce the shrinkage of the wet composition during curing.
144 Use of HyperBranched polyether surfactant in cementitious systems US13400198 2012-02-20 US09212095B2 2015-12-15 Jeffrey R. Bury; Thomas M. Vickers, Jr.
A cementitious composition containing hydraulic cement, water, and a hyper-branched polyether surfactant. An aqueous admixture composition for cementitious compositions including a hyper-branched polyether surfactant, optionally a dispersant, optionally an additional surfactant or defoamer, and optionally a stabilizing agent. A method of making a cementitious composition including mixing cementitious material, water, a hyper-branched polyether surfactant, optionally a dispersant for cementitious compositions, optionally an additional surfactant or defoamer, and optionally a stabilizing agent.
145 CALCIUM SULPHATE-BASED PRODUCTS US14654300 2013-12-19 US20150329423A1 2015-11-19 Robin FISHER
This invention relates to improved high temperature resistant calcium sulphate-based products e.g. gypsum wallboard products and, in particular, to products having reduced shrinkage at high temperatures. The invention provides calcium sulphate-based product comprising gypsum and a shrinkage resistance additive. The shrinkage resistance additive is melamine polyphosphate or melamine pyrophosphate.
146 Shrinkage-reducing agent for hydraulic material and shrinkage-reducing agent composition for hydraulic material US13056626 2009-07-29 US09139474B2 2015-09-22 Mari Masanaga
Provided are a shrinkage-reducing agent for a hydraulic material and a shrinkage-reducing agent composition for a hydraulic material including a compound represented by the general formula (1): R1—[O-(A1O)m—R2]n (1), where: R1 represents R1 derived from a polyhydric alcohol represented by R1—[OH]n; A1O represents an oxyalkylene group having 2 to 18 carbon atoms; R2 represents a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms; m represents an average added mole number of oxyalkylene groups A1O's; n represents 3 or 4; and when n equals 3, m represents 30 to 150, and when n equals 4, m represents 5 to 150.
147 HYDRAULIC COMPOSITION US14428865 2013-09-23 US20150232388A1 2015-08-20 Alessandro Dal Bo; Gianmaria Marinello; Maurizio Pietrobon; Alan Tommasi
The invention relates to a composition comprising, based on the dry weight of said composition, (A) 10 to 70% by weight of one or more hydraulic binder and (B) 20 to 85% by weight of one or more filler, wherein the composition contains 0.05 to 5% by weight, based on the amount of the hydraulic binder, of at least one terpenoid alcohol, wherein the terpenoid alcohol is not terpineol or borneol. Additionally disclosed is a hardened product made by the composition and the use of at least one terpenoid alcohol in a composition, comprising hydraulic binder and filler, to reduce the shrinkage of the wet composition during curing.
148 MULTI-PURPOSE MORTAR OR CEMENT COMPOSITIONS FOR CONSTRUCTION APPLICATIONS US14419810 2013-08-13 US20150203407A1 2015-07-23 Wilfrid Girot; François Lagnel; Michel Donadio; Fleur Lesetre
The present invention relates to a multi-purpose mortar or cement composition for (i) inhibiting the corrosion of steel in mortar or cement structures, (ii) repairing, filling and/or spraying damages, cracks, flaws and cavities in mortar or cement structures and/or (iii) surfacing, coating and/or protecting mortar or concrete surfaces. The present invention further relates to methods of preparation and use of the multi-purpose mortar or cement composition.
149 ULTRA HIGH PERFORMANCE CONCRETE REINFORCED WITH LOW-COST GRAPHITE NANOMATERIALS AND MICROFIBERS, AND METHOD FOR PRODUCTION THEREOF US13600358 2012-08-31 US20140060388A1 2014-03-06 Muhammad Maqbool Sadiq; Anagi Manjula Balachandra; Parviz Soroushian
Ultra-high-performance cementitious materials are made using suitably functionalized and relatively low-cost carbon nanofibers and graphite platelets. Polyelectrolytes and surfactants are physisorbed upon these graphite nanomaterials in water, and dispersion of nanomaterials in water is achieved by stirring. Stable and well-dispersed suspensions of nanomaterials in water are realized without using energy-intensive and costly methods, and also without the use of materials which could hinder the hydration and strength development of ultra-high-performance cementitious materials. The water incorporating dispersed nanomaterials is then mixed with the cementitious matrix and, optionally, microfibers, and cured following standard concrete mixing and curing practices. The resulting cementitious materials incorporating graphite nanomaterials and optionally microfibers offer a desired balance of strength, toughness, abrasion resistance, moisture barrier attributes, durability and fire resistance.
150 Cement admixture and cement composition US13991524 2011-10-24 US08663384B2 2014-03-04 Takayuki Higuchi; Tsutomu Kida; Ryoetsu Yoshino
The invention provides a cement admixture that improves the ability of concrete to bring about high initial strength, works in favor of enhancing the effect on hexavalent chromium reductions, and is less likely to decrease in the effect on hexavalent chromium reductions even upon storage as well as a method for reducing hexavalent chromium. The invention is embodied as (1) A cement admixture, characterized by comprising an expanding material containing free lime, a hydraulic compound and calcium sulfate anhydrite, and a tin sulfate-containing substance; (2) The cement admixture according to (1), characterized in that the tin sulfate-containing substance is contained in an amount of 0.2 to 8 parts by mass—as calculated on a tin sulfate basis—in a total of 100 parts by mass of the expanding material and the tin sulfate-containing substance; (3) The cement admixture according to (1) or (2), characterized in that the expanding material has been treated with carbon dioxide gas to form calcium carbonate therein; (4) The cement admixture according to any one of (1) to (3), characterized in that the expanding material has been surface treated with a shrinkage reducer; (5) A cement composition, characterized by containing cement, and the cement admixture according to any one of (1) to (4); and (6) A method for reducing hexavalent chromium, characterized by use of the cement composition according to (5).
151 Redispersible polymer powder composition US13001164 2009-06-25 US08623462B2 2014-01-07 Alexander Zapf; Hans Wicki; Hongli Willimann; Urs Heini
The present invention pertains to a water-redispersible polymer powder composition based on at least one synthetic polymer and at least one natural latex. Preferably, the polymer powder contains up to about 90 wt. % of at least one water-insoluble, synthetic polymer, up to about 90 wt. % of least one natural latex, about 0 to 50 wt. % of at least one protective colloid, about 2 to 50 wt. % of at least one filler and/or anti-caking agent, as well as optionally further additives. In addition, the invention pertains to a process for the preparation of the polymer powder composition, the use thereof as an additive in building material compositions, as well as building material compositions containing the polymer powder composition.
152 Suppression of antagonistic hydration reactions in blended cements US13119306 2009-10-30 US08518176B2 2013-08-27 Denise A. Silva; Josephine Cheung; Paul Sandberg; Lawrence Roberts; Durga V. Subramanian; John L. Gallagher; Lawrence L. Kuo
Method for suppressing antagonistic hydration reactions in Portland fly ash cement involves the use of unponded fly ash that is pre-hydrated, preferably as an aqueous slurry wherein fly ash, preferably having an alkaline earth metal oxide of at least 10% by weight, is soaked, whereby the hydration reaction of the resultant mixed fly ash and cement is accelerated when these components are mixed together with water to hydrate the cement. Blended Portland cement/fly ash compositions of the invention will also have higher early strength as well as shorter set time compared to untreated blends.
153 Cementitious composition and admixture US13528903 2012-06-21 US08460460B2 2013-06-11 Samy M. Shendy; Daniel Constantiner
A cementitious composition including at least one cementitious and/or pozzolanic material and at least one desugared molasses. A method of preparing a cementitious composition including forming a mixture of water, at least one cementitious and/or pozzolanic material and at least one desugared molasses. An admixture for cementitious compositions including: (i) at least one desugared molasses; and (ii) at least one alkanolamine and/or at least one polyhydroxyalkylamine.
154 Cementitious compositions US13416831 2012-03-09 US08382893B1 2013-02-26 Matthew Piazza; Harris D. Hobby; Edward C. Mungenast
A cementitious composition is formed from a dry mix including a quantity of cement; a quantity of silica and a plurality of fibers. The cementitious composition further includes a quantity of water and a complex admixture of cement additives. The complex admixture includes superplasticizer, shrinkage reduction agent and a non-ionic surfactant in a predetermined quantity per hundred pounds of dry mix.
155 Shrinkage reducing agent US12812854 2008-12-08 US08353983B2 2013-01-15 Raita Iwata; Tomomi Sugiyama; Takumi Sugamata
To provide shrinkage reducing agents which render excellent shrinkage reducing effect and frost-thaw resistance to cement compositions such as mortar and concrete without entraining excessive air, and exhibit excellent solution stability.The shrinkage reducing agent comprises a (poly)alkylene compound having an unsaturated bond represented by the formula (1): R2O—R1—O-(A1O)n—R3  (1) -(A2O)m—R4  (2) (wherein R1 is a C2-10 hydrocarbon group having an unsaturated bond; R2 is hydrogen or the formula (2); R3 and R4 are each independently hydrogen or a C1-8 alkyl group; A1O and A2O are one or more kinds of C2-4 oxyalkylene groups; and n and m are mean addition numbers of moles of A1O and A2O, respectively, and 1 to 20).
156 Cementitious Composition and Admixture US13528903 2012-06-21 US20120325120A1 2012-12-27 Samy M. Shendy; Daniel Constantiner
A cementitious composition including at least one cementitious and/or pozzolanic material and at least one desugared molasses. A method of preparing a cementitious composition including forming a mixture of water, at least one cementitious and/or pozzolanic material and at least one desugared molasses. An admixture for cementitious compositions including: (i) at least one desugared molasses; and (ii) at least one alkanolamine and/or at least one polyhydroxyalkylamine.
157 SUPPRESSION OF ANTAGONISTIC HYDRATION REACTIONS IN BLENDED CEMENTS US13119306 2009-10-30 US20120298011A1 2012-11-29 Denise A. Silva; Josephine Cheung; Paul Sandberg; Lawrence Roberts; Durga V. Subramanian; John L. Gallagher; Lawrence L. Kuo
Method for suppressing antagonistic hydration reactions in Portland fly ash cement involves the use of unponded fly ash that is pre-hydrated, preferably as an aqueous slurry wherein fly ash, preferably having an alkaline earth metal oxide of at least 10% by weight, is soaked, whereby the hydration reaction of the resultant mixed fly ash and cement is accelerated when these components are mixed together with water to hydrate the cement. Blended Portland cement/fly ash compositions of the invention will also have higher early strength as well as shorter set time compared to untreated blends.
158 Shrinking Reducing Agent US12812854 2008-12-08 US20120266782A9 2012-10-25 Raita Iwata; Tomomi Sugiyama; Takumi Sugamata
To provide shrinkage reducing agents which render excellent shrinkage reducing effect and frost-thaw resistance to cement compositions such as mortar and concrete without entraining excessive air, and exhibit excellent solution stability.The shrinkage reducing agent comprises a (poly)alkylene compound having an unsaturated bond represented by the formula (1): R2O—R1—O-(A1O)n—R3  (1) -(A2O)m—R4  (2) (wherein R1 is a C2-10 hydrocarbon group having an unsaturated bond; R2 is hydrogen or the formula (2); R3 and R4 are each independently hydrogen or a C1-8 alkyl group; A1O and A2O are one or more kinds of C2-4 oxyalkylene groups; and n and m are mean addition numbers of moles of A1O and A2O, respectively, and 1 to 20).
159 Articles made from cementitious foam and slurry US12478872 2009-06-05 US08277556B2 2012-10-02 Neal S. Berke; Jordan S. Merritt; Lianfang Li; Antonio J. Aldykiewicz, Jr.; Robert A. Wiercinski; Michael D. Morgan
Lightweight cementitious foams of the invention have excellent dynamic and dimensional stability due to use of foaming system comprising polycarboxylate surfactant foam generating agent, foam stabilizer (e.g., PVOH), and shrinkage reducing admixture to inhibit plastic shrinkage and micro-cracking of cement. The foaming system can be used in conventional cement mortars or concretes as well as with exemplary cementitious slurry systems of the invention, which include an expansive agent, a cross-linking agent for the foam stabilizer. Microfibers can be used in the foam, slurry, or both, to prevent micro-cracking. Cementitious foams can be made without use of autoclave or lightweight aggregates to achieve enhanced compressive strength and thermal insulation properties that compare favorably with conventional foams and insulation materials at comparable densities.
160 Cement Additives US12681795 2008-10-09 US20120041157A9 2012-02-16 Takumi Sugamata; Tomomi Sugiyama; Raita Iwata
To provide cement additives which render high fluidity and the retention thereof, excellent shrinkage reducing effect and frost-thaw resistance to cement compositions such as mortar and concrete without entraining excessive air, and exhibit excellent solution stability.The present cement additives contain alkenyl group-containing polyalkylene compounds (SR), ester-based polycarboxylic acid copolymers (PC1) and ether-based polycarboxylic acid copolymers (PC2).
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