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| Number | Title | Issue Date |
| 7178597 | Cement compositions comprising high aspect ratio materials and methods of use in subterranean formations The present invention relates to subterranean well cementing operations, and more particularly, to cement compositions that include high aspect ratio materials, and methods for using such cement compositions in subterranean formations. An example of a method of the ... | 02/20/2007 |
| 7174961 | Methods of cementing using cement compositions comprising basalt fibers Methods of using cement compositions that comprise basalt fibers in subterranean formations are provided. An example of such a method may comprise providing a cement composition that comprises water, a hydraulic cement, and a plurality of basalt fibers; introducing ... | 02/13/2007 |
| 6503625 | Fibers for reinforcing matrix materials Exemplary mechanically-flattened fibers of the invention comprise generally elongate bodies having varied width or thickness dimensions and micro-diastrophic surface deformities. Preferred fibers are elongate synthetic polymer or multipolymer blend fibers... | 01/07/2003 |
| 6293071 | Antiseismic spiral stirrups for reinforcement of load bearing structural elements The present invention refers to stirrups for reinforcement of load bearing structural elements, and in particular for reinforcing concrete load bearing building elements, such as columns, shear walls, beams, slabs, footings, lintels, piles. The invention ... | 09/25/2001 |
| 6237297 | Modular structural members for constructing buildings, and buildings constructed of such members A structural member of this class basically consists of two spaced shell panels and an intermediate core. The shell panels may be made of metal or concrete or combinations thereof, or of other rigid materials having the required physical properties. The c... | 05/29/2001 |
| 6000189 | Fire-resistant rear-ventilated cladding Rear-ventilated cladding is provided with intumescent compositions in the region of the rear ventilation.... | 12/14/1999 |
| 5636492 | Construction element A construction element has a thickness substantially less than at least one of its other dimensions. In terms of weight, the construction element is comprised of more than 50% plastic and less than 50% pieces of metal band. The pieces of metal band are si... | 06/10/1997 |
| 5573348 | Structural members Improved structural members including solid and hollow core beams, poles, columns and enclosure structures formed of a cement-based slurry infiltrated fiber composite material. The improved structural members are produced by first placing a plurality of i... | 11/12/1996 |
| 5451471 | Reinforcement fiber for reinforcing concrete Reinforcement fiber made of metal for the reinforcement of concrete, consisting of a wire piece, which is deformed near both ends over a certain distance. The wire piece, is undeformed between the ends and the deformed part. The two extremities of the rei... | 09/19/1995 |
| 5443918 | Metal fiber with optimized geometry for reinforcing cement-based materials A metal fiber for reinforcing cement-based materials comprises an elongated, substantially straight central portion and sinusoid shaped end portions. The sinusoid at each end portion has an optimum amplitude Ao,opt defined by: Ao,opt... | 08/22/1995 |
| 5419965 | Reinforcing element with slot and optional anchoring means and reinforced material incorporating same There is disclosed a reinforcing element for reinforcing a solidified fluid mass such as concrete or refractory comprising an elongate shank having a slot extending along at least a portion of the length of the shank. The slot increases the surface area o... | 05/30/1995 |
| 5404688 | Matrix for reinforcing concrete An element for reinforcing concrete comprises a framed structure having a plurality of rods formed in a polyhedral shape defining a plurality of junctions. At least one junction extends into the framed structure of another of the elements.... | 04/11/1995 |
| 5391019 | Environmental enclosure structure and method of manufacture An environmental enclosure structure formed of a cement-based slurry infiltrated fiber composite material is used above ground or underground to enclose, protect, and safely contain; hazardous materials, telecommunications equipment, volatile explosives, ... | 02/21/1995 |
| 5341616 | Concrete insert element and concrete structure having at least one concrete insert element A concrete structure having at least one concrete insert element is disclosed. The insert element has a surface with a layer of aluminum or aluminum alloy and, upon setting of the concrete, the layer of aluminum or aluminum alloy reacts at least partially... | 08/30/1994 |
| 5248549 | Concrete panels with continuous elongated members A panel having several concrete layers and further including a sufficient number of elongated members disposed between the adjacent layers so that the brittle characteristics of the concrete panel are minimized. Inexpensive spacing material is provided to... | 09/28/1993 |
| 5215830 | Metal fiber for reinforcing concrete A fiber for reinforcing concrete comprises a length of metal wire having a substantially straight central part and offset anchoring parts at its opposite ends, each of which includes an initial straight portion parallel to the central part and offset late... | 06/01/1993 |
| 5209603 | Secondary containment structure and method of manufacture A secondary containment structure formed of a slurry infiltrated fiber concrete composite is used above ground or underground to enclose material storage containers and to safely contain any materials leaked from the container. The structure is a hollow c... | 05/11/1993 |
| 5177924 | Lightweight building component A building kit including lightweight, extruded components made of environmentally acceptable, i.e., organic and mineral, materials. The lightweight components are made of: a) untreated chopped straw, grain chaff, rice husks, rock fibers and/or glass fiber... | 01/12/1993 |
| 5162059 | Discontinuous fiber made of drawn steel wire, and a fiber composite containing said fiber A discontinuous drawn steel wire fiber for incorporation in a fiber composite, in particular a cement material, the fiber being made from a length of steel wire which is shaped so that the fiber is contained in a plane and, in said plane, is in the config... | 11/10/1992 |
| 5145285 | Discontinuous structural reinforcing elements and method of reinforcing and improving soils and other construction materials A multidimensional structural reinforcing element is disclosed, the element designed for inclusion within a matrix of soil, concrete, stone, and other materials to improve the index properties of the matrix. The elements have a hub portion with arms exten... | 09/08/1992 |
| 5100738 | Reinforced concrete containing coated steel reinforcing member The reinforcing steel has a protective coating formed from a first layer of synthetic material and a second layer of aluminum or aluminum alloy between the first layer and the outer surface of the reinforcing steel.... | 03/31/1992 |
| 5048250 | Building block A relatively simple, inexpensive building block for use in self-supporting walls includes a rectangular parallelepipedic body formed of a mixture of three parts by weight cement to two parts by weight wood fiber. Vertically extending grooves and in some c... | 09/17/1991 |
| 4919572 | Fender pile Concrete fender pile having prestressing members (19, 20) of elongated, high-strength fiber composite elements (21) with a low modulus of elasticity which, during a ramming impact (p), permit a large elastic deflection of the fender pile (14) and are inse... | 04/24/1990 |
| 4883713 | Moldable material reinforcement fibers with hydraulic or non-hydraulic binder and manufacturing thereof The invention concerns the reinforcement of a moldable material by means of fibers composed of a filiform body with, at each end, an anchoring device consisting a body in the shape of a solid of revolution, with transversal dimensions exceeding filiform b... | 11/28/1989 |
| 4774794 | Energy efficient building system A foam-cement building having the walls, roof and/or floor formed from a plurality of self supporting foam building blocks of varying density with a strong thin continuous structural and architectural coating on the surface of the blocks, the coating bein... | 10/04/1988 |
| 4627998 | Carbon fiber reinforced concrete A process for manufacturing a precast composite structure of a matrix of cured carbon fiber reinforced concrete and at least one ferrous metallic member at least partly buried in said matrix, by forming an insulating layer of an electric resistance of at ... | 12/09/1986 |
| 4615280 | High security support and enclosure structure for electronic equipment A new structure is provided comprising a cast body having enclosure, pedestal and anchor sections cast integrally of high steel fiber reinforced concrete. The enclosure section has walls forming a primary security compartment. A door movable between open ... | 10/07/1986 |
| 4574108 | Fiber reinforced composite Fibers and plastic materials reinforced with these fibers which have a diameter that varies along the fiber axis are provided. The fibers increase the strength of the material by reducing fiber pull out from the plastic matrix. The variation in diameter r... | 03/04/1986 |
| 4565840 | Fiber-reinforced concrete and reinforcing material for concrete A fiber-reinforced concrete comprising two kinds of short fibers, one being a short fiber having a Young's modulus higher than that of concrete, the other being a short fiber which has a Young's modulus lower than that of concrete and showing good adhesiv... | 01/21/1986 |
| 4553362 | Prefabricated building units A prefabricated building unit is formed as an integrally moulded body of fibre-reinforced concrete. The body has a wall, a beam extending along the top or bottom of the wall, and a floor or roof extending from the beam perpendicularly to the wall at the b... | 11/19/1985 |
| 4404786 | Method and apparatus for making reinforced concrete products Methods and apparatus for making reinforced concrete products wherein arrays of reinforcing rods are distributed and imbedded automatically during the introduction of concrete into a form. A novel reinforcing wire cutting-ejection mechanism is provided to... | 09/20/1983 |
| 4379870 | Reinforcing material for hydraulic substances and method for the production thereof Reinforcing material for hydraulic substances such as cement, mortar, concrete or the like and a method for producing it. The reinforcing material consists essentially of an elongated product of a synthetic resin having protrusions on its surface and whic... | 04/12/1983 |
| 4372092 | Precast concrete modular building panel A precast modular panel suitable for forming at least a portion of a wall or other part of a building, and associated methods of constructing said panel, the panel comprising lightweight, high strength, water resistant concrete achieved by a unique combin... | 02/08/1983 |
| 4370390 | 3-D Chopped-fiber composites A low-cost composite structure, having near isotropic mechanical properties, produced by molding a matrix material with a reinforcing fiber element. The reinforcing fiber elements are comprised of three or more fibers to form a three-dimensional figure. I... | 01/25/1983 |
| 4297414 | Reinforcing material for hydraulic substances and method for the production thereof A reinforcing material for hydraulic substances such as cement, mortar, concrete or the like consists essentially of an elongated product of a synthetic resin having protrusions on its surface and which was obtained by extruding and subsequent stretching.... | 10/27/1981 |
| 4264542 | Method of lining tunneled tubes A method of lining a tunnel wall comprises the pumping of concrete between a support and the tunnel wall, the concrete being selected from the concretes of concrete group BII of German Industrial Standard (DIN) 1045 and containing as an additive, steel pi... | 04/28/1981 |
| 4233364 | Anchoring fibre for use in concrete An anchoring fibre of metal to be used in concrete, having a flattened end and a transversely extending projection on the end. The flattened end may be either rectangular or triangular in planform, and the projections may be either pyramidal or a flange. ... | 11/11/1980 |
| 4154039 | Reinforced building structure and method of manufacture The invention is a building structure of material which uses a water-activated binder, such as cement-mortar or concrete, and of a form having one thickness dimension much smaller than the other two dimensions perpendicular thereto. The structure includes... | 05/15/1979 |
| 4133928 | Fiber reinforcing composites comprising portland cement having embedded therein precombined absorbent and reinforcing fibers Fibre reinforced composites of cementitious materials or gypsum are reinforced with pre-combined mixtures of strong reinforcing fibres e.g., glass or steel, and water absorbent fibres, e.g., cotton. Examples of composites are cement pipes, wall boards, et... | 01/09/1979 |
| 4127349 | Concrete paving stone and method of manufacturing same A concrete paving stone having single flags held together with a number of concrete ribs between adjacent stones such that the ribs will resist breaking during ordinary handling but will break upon the application of vibration after the paving stone is la... | 11/28/1978 |
