序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
81 High density artificial stone and a method for producing therefor US155286 1993-11-22 US5422391A 1995-06-06 Yukihiko Inoue
The present invention provides high density artificial stone with physical properties similar to those of natural stone and having excellent and beautiful external appearance as well as a method to produce same.More particularly, the present invention provides high density artificial stone consisting of 10 to 70 mesh inorganic fine particles from natural stone and the like which are mixed with 100 mesh or above inorganic very fine particles to the weight ratio ranging from 0.5:1 to 5:1, jointly accounting for at least 85% of the weight of the final product, containing 15% or less resins, wherein each raw material component is uniformly distributed and the fine particles from natural stone and the like are exposed on the surface of the product.
82 Acid resistant concrete articles, especially sulfur concrete pipes, and a method of manufacturing said articles US326617 1989-03-21 US4981740A 1991-01-01 Leif H. A. Larsen
Acid resistant concrete articles, especially sulfur concrete pipes manufactured from a material formulated on the basis of a composition of portland cement concrete suitable for the manufacture of pipes by means of the dry casting method, the volume of portland cement, filler and water being replaced by a substantially equivalent volume of sulfur cement and filler, while the amount of other components remains substantially unchanged. The sulfur concrete pipes are manufactured by mixing the components of the material and adjusting the mixture to a temperature, where sulfur cement is liquid. At this temperature the mixture is cast while being subjected to vigorous vibration, using a casting mould preheated to a temperature of up to 160.degree. C. The cast pipes can be removed from the mould immediately after casting. After only 24 hours they have obtained sufficient strength for being delivered to a building site. Sulfur concrete pipes are most suitable in aggressive environments since they are resistant to acid and salt attacks.
83 Method for producing a centrifugally cast concrete product US109468 1987-10-16 US4844855A 1989-07-04 Yoshitaka Omori; Kanzi Suzuki; Fumitoshi Niinuma
A method for producing centrifugally cast concrete product including charging pumpable concrete into a cylindrical form and rotating the form to cast the concrete by a centrifugal force, in which the concrete contains a high water reducing agent, an air entraining agent and an inorganic fine powder, and 5.5 to 18.5% of air content, thereby considerably reducing the amount of discharged sludge and, in turn, the labor and expenses required for the disposal of sludge, while maintaining the strength of the product as same as or greater than that for conventional products, without the need for complex processes.
84 Ultra-high performance concrete and concrete component produced therefrom US14460722 2014-08-15 US09840439B2 2017-12-12 Roland Kastner; Helmut Lieb; Frank Dittmar; Jianxin Ma
Ultra-high performance concrete produced from cement, aggregate, water, fillers, and additives, wherein the aggregate comprises 800-1,300 kg of an igneous rock in the form of crushed stone per cubic meter of concrete.
85 Buoyancy control material for subsea main pipelines and high-density buoyancy control material for subsea main pipelines US13817139 2011-03-24 US08895642B2 2014-11-25 Anatoly P. Svechkopalov; Igor I. Shaporin
The buoyancy control material for subsea main pipelines and high-density buoyancy control material for subsea main pipelines are suggested predominantly for use while manufacturing pipes for subsea pipeline installations. Creation of a buoyancy control material with a density greater than 2800 kg/m3 and the required mobility is an engineering problem solved by this invention. The buoyancy control material for subsea main pipelines contains cement, filler, plasticizing agent and water.
86 METHOD FOR EXTRACTION HEAT FROM AN EFFLUENT, ESPECIALLY WASTE WATER, CIRCULATING IN A CONDUIT, HEAT EXCHANGER AND MATERIAL FOR IMPLEMENTING SAID METHOD US14130930 2012-07-03 US20140151005A1 2014-06-05 Frederic Duong
The invention relates to a method for extracting heat from an effluent (2) circulating in a conduit (1), especially a waste water collector, according to which a heat exchanger (E) is installed, at least in the bottom of the conduit, said heat exchanger (E) lying in the effluent and being formed by coating tubes (3) with sufficiently heat-conductive concrete cast around the tubes intended for the circulation of a heat-transfer fluid, the heat exchange with the effluent of the conduit being carried out through the moulded coating. The concrete (4) of the coating consists of a least 50 weigh % of silicon carbide, a load of needles made of a heat-conductive and mechanically resistant material, a binding agent and the remainder of alumina, metal powder or carbon.
87 Geopolymer concrete and method of preparation and casting US10595915 2004-11-19 US20070125272A1 2007-06-07 Gregory Johnson
A method of forming a geopolymer moulded product comprising: forming a geopolymer concrete composition comprising an alkali or alkaline earth metal silicate component, an alkali or alkaline earth metal hydroxide, aggregate and water wherein the water content is insufficient to provide a slumped concrete and the ratio of SiO2 to M2O is at least 0.8; and casting the concrete into a mold and subjecting the moulded concrete to consolidation in the mold.
88 Lightweight composite materials and methods US11093006 2005-03-29 US20050252419A1 2005-11-17 Michael Mabey
Lightweight composite or “mineral foam” composite materials can be made from reactive materials such as metal oxides. The materials can be prepared from a reaction of metal oxide(s), phosphate(s) and residual materials to which may be added a reactive foaming agent and/or latex polymer to provide enhanced physical properties. The composite materials can have a density of between about 0.35 to 2.25 g/cc, and may be used for many applications including pre-cast structures, in-situ structures, insulating blocks, slabs and composite wall sections, light weight spheres, mixes and coatings.
89 Cement-based systems using water retention agents prepared from raw cotton linters US11114479 2005-04-26 US20050241542A1 2005-11-03 Wolfgang Hagen; Wolfgang Hildebrandt; Wilfried Hohn; Dieter Schweizer
A mixture composition of a cellulose ether made from raw cotton linters and at least one additive is used in a cement based dry mortar composition wherein the amount of the cellulose ether in the tile cement based dry mortar composition is significantly reduced. When this cement based mortar dry composition is mixed with water and applied to a substrate, the water retention, thickening behavior, and/or sag resistance of the wet mortar are comparable or improved as compared to when using conventional similar cellulose ethers.
90 Cement-based plasters using water retention agents prepared from raw cotton linters US11113262 2005-04-22 US20050241540A1 2005-11-03 Wilfried Hohn; Dieter Schweizer
A mixture composition of a cellulose ether made from raw cotton linters and at least one additive is used in a dry cement based plaster (or render) composition wherein the amount of the cellulose ether in the render composition is significantly reduced. When this render composition is mixed with water and applied to a substrate, the water retention and thickening and/or sag resistance of the wet plaster are comparable or improved as compared to when using conventional similar cellulose ethers.
91 Cement compositions for high temperature applications US10504772 2003-02-14 US20050160945A1 2005-07-28 Veronique Barlet-Gouedard; Chrystel Cambus; Samuel Danican; Erik Nelson; Bruno Goffe
In a process to design high temperature cement sluries, the temperature stable phases (anorthite, wairakite) are selected; aluminum modifiers and silica oxides are added to the dry cement so that the elemental composition of the blend corresponds to the phases selected; the control of the particle size distribution and the relative amount of those minerals allow their addition at high concentration while leaving the slurry easily mixable and pumpable; and the kinetics of the targeted phases formation is then controlled by adjusting the crystallinity and the particles sizes of the different solids.
92 Pre-fabricated structural components strengthened with tensile reinforcements and method for production thereof US10484490 2002-07-18 US20050011147A1 2005-01-20 Herbert Giesemann
The prefabricated structural components strengthened by tensile reinforcements, preferably metal inlays, containing binders and aggregates, wherein said binder is an alkali water glass, and the aggregates have a broad grain size distribution like aggregates added to reinforced concrete.
93 Liner for waste water system rehabilitation US10798190 2004-03-11 US20040175559A1 2004-09-09 James M. Hume
A technique and device for rehabilitating or repairing waste water system components or the like, comprising a spray-applied, multi-layer liner which seals the components and imparts structural integrity. The liner comprises a primer layer, a first moisture barrier layer, a foam layer and a second moisture barrier layer. The first and second moisture barrier layers are preferably made of the same material and form a skin on both sides of the internal foam layer. The combination of the foam layer and the two moisture barrier layers imparts structural strength and rigidity to the cured liner.
94 Corrosion protection in concrete sanitary sewers US759412 1996-12-04 US5834075A 1998-11-10 Thomas Michael Miller
A method for protecting concrete surfaces of sanitary sewers includes the steps of providing a concrete surface in a sanitary sewer environment; and coating the concrete surface with magnesium hydroxide or magnesium oxide.
95 Protective barrier using polymer concrete US445635 1995-05-22 US5725906A 1998-03-10 William C. Allen
A polymer concrete pipe liner is formed from a fluidized, but substantially waterless cement containing mixture applied to the pipe interior. The mixture contains inorganic cement particles, a liquid styrene mixture and one or more poly-olefinically unsaturated co-monomers in a greater amount than the styrene. The mixture substantially excludes acrylonitrile and acrylamide. The co-monomers are preferably selected from a group including trimethylolpropane-trimethacrylate, trimethylolpropane-methacrylate, divinyl benzene, and hexadiene. Mixing liquid and solid aggregate components forms a slurry which is transferred to a pipe interior and centrifugally cast to form the liner. The composition avoids the need for high temperature curing the toxic reactive unsaturates to co-polymerize and cross-link polystyrene. A preferred embodiment incorporates the use of relatively high concentrations of cement material, usually above about 40 weight percent of the aggregate component of the mixed slurry, to further improve chemical resistance and strength characteristics.
96 Exhaust conduit coating US511906 1995-08-07 US5641348A 1997-06-24 Richard N. Miller; Noble Thomas Pessano
A mixture producing a slurry for coating metallic vehicle exhaust conduits utilizing a refractory cement and a caustic or alkaline salt binder. Sufficient amounts of water are also employed in the slurry resulting in a flowable material. The slurry flows over and hardens as a thin uniform coating on the interior surface of an exhaust conduit. The coating exhibits excellent adhesion to the metallic material, does not crack or chip under impact forces, and possesses a coefficient of thermal expansion similar to the underlying metallic structure.
97 Method of preventing corrosion in concrete pipe US582968 1996-01-04 US5620744A 1997-04-15 Fred R. Huege; Timothy L. Salter
A method of treating concrete pipe is carried out by providing an aqueous lime slurry supply having a lime solids content above 35% by weight of the slurry. This is mixed within an amount of dispersing agent and may contain an alkali metal hydroxide so that the slurry has a pumpable viscosity. A spray assembly is located within the interior of the pipe. The lime slurry is pumped from this lime slurry supply through the spray assembly so that the lime slurry is applied to the interior surfaces of the pipe to neutralize acids thereon. Applying the lime spray also provides a protective coating of the lime slurry on the interior surfaces of the pipe.
98 Polymer concrete composition containing high cement content US176549 1994-01-03 US5599857A 1997-02-04 William C. Allen
A polymer concrete pipe liner is formed from a fluidized, but substantially waterless cement containing mixture applied to the pipe interior. The mixture contains inorganic cement particles, a liquid styrene mixture and one or more poly-olefinically unsaturated co-monomers in a greater amount than the styrene. The mixture substantially excludes acrylonitrile and acrylamide. The co-monomers are preferably selected from a group including trimethylolpropane-trimethacrylate, trimethylolpropane-methacrylate, divinyl benzene, and hexadiene. Mixing liquid and solid aggregate components forms a slurry which is transferred to a pipe interior and centrifugally cast to form the liner. The composition avoids the need for high temperature curing the toxic reactive unsaturates to co-polymerize and cross-link polystyrene. A preferred embodiment incorporates the use of relatively high concentrations of cement material, usually above about 40 weight percent of the aggregate component of the mixed slurry, to further improve chemical resistance and strength characteristics.
99 Method for making and shaping objects of rigid insulation US429195 1995-04-26 US5589023A 1996-12-31 John S. Rendall; Massoud Ahghar
An insulation material comprising the double salt of aluminum potassium sulphate and method of producing such. Aluminum sulphate materials and potassium sulphate materials are combined to form aluminum potassium sulphate which is then dehydrated to remove the water of hydration. Porous forms are made by mixing the hydrated aluminum potassium sulphate with a binder before dehydration. The resultant dehydrated sulphate expands greatly to provide an insulative material which is of lightweight and inorganic.
100 Superplasticizer-concrete composition for waste disposal US361425 1994-12-21 US5551976A 1996-09-03 William C. Allen
A solidified waste is formed from a difficult-to-compact hydraulic cement slurry for use in the disposal of hazardous waste. The slurry contains inorganic non-compactible hydraulic cement particles, a concrete superplasticizer compound, water, and filler particles containing radionuclide and/or toxic contaminants. The slurry is then transferred to a storage vessel, such as a subterranean formation, to cast a stronger, denser solidified waste than a comparable solidified waste containing no superplasticizer.
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