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JP2000301520A |
To simplify the production and prevent a package from becoming bulky and further, prevent an insert from tilting or falling off due to resistance caused by the forming of concrete by providing a peripheral wall and a core cylinder part, ...
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JP2000303599A |
To restrain an increase in the number of main reinforcements or an increase in a diameter by fixing a rectangular plate-like anchor member having no female screw hole for an anchor bolt to the main reinforcements so that the long side be...
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JP2000296510A |
To provide a form for preparing a side wall block wherein on the form for preparing the side wall block in the recessed parts of both ends of which screw- engraved parts for anchor bolts are exposed, range of application of sizes of prod...
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JP2000288842A |
To easily and inexpensively manufacture an exchanger which secures satisfactory high temperature strength to be used by sealing the lower ends of many hollow tubes by a tube plate and supporting the same, and storing the respective hollo...
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JP2000291201A |
To fix a stainless steel plate and concrete without being affected by a thermal expansion difference by inserting an elastic buffer material in a reinforcing bar attached to a stainless steel plate in the form of a stud to cover the atta...
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JP2000280229A |
To make framing operation and frame-extracting operation in placing concrete unnecessary by a method wherein a precast slab is used as a part of a floor system without being detached after placing the concrete. A bridge reinforced concre...
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JP2000282586A |
To provide an insert for versatile use that can be mounted without rotating a bolt and a rod-shaped metal fitting. In the insert for concrete, gear-lock rings 10 where elastic locking pieces 12 in which a tip 13 is bent toward the axial ...
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JP2000280218A |
To prevent a joint flaw formed of the joint part of a decorative form from being caused by partially sticking and overlapping a partial artificial rock forming a part of an artificial rock and the lower opening of the decorative form and...
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JP2000271923A |
To make it possible to rationalize the production, save labor and power consumption and upgrade the accuracy of a product by providing a pressing roller which presses to the side the head part of a rail clamping shoulder protruding to th...
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JP2000273981A |
To provide explosive fracture prevention concrete which is capable of preventing explosive fracture of concrete even when the water content in concrete vaporizes and concrete expands and which can be produced by a simple production work....
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JP2000271924A |
To provide the manufacturing method of an inorganic formed plate, in which a special cement utilizing the powder mainly consists of γ-2CaOSiO2 and 12CaO7Al2O3 representing the reduction stage slug in a steel making is applied, and the m...
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JP2000263538A |
To manufacture a cellular concrete plate for solving a problem of being broken during the carriage and construction and a problem of easily generating powder dropping during construction as weak points of a cellular concrete plate and im...
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JP3091811B2 |
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JP3091829B2 |
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JP2000254912A |
To accurately finish four side faces by applying vertical placing when an outer shell PCa column with no pillar main reinforcement is molded with concrete and to simply and accurately stand an iron-reinforced pre-assembled body at a spec...
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JP2000254908A |
To provide a concrete embedded article such as an insert holding tool which can be mounted surely, in a short time and in a form without being influenced by decrease in atmospheric temp. A projection 25 being a key is provided on a mount...
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JP2000257143A |
To provide a sound insulating buffer capable of being easily mounted to a molding form and preventing the buffer from easily coming off from the molding form when it is filled with concrete. A buffer main body 1 of a sound insulating buf...
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JP2000257268A |
To reduce labor of installing work of a concrete secondary product, and to prevent sinking by an after loaded load by filling up clearance generated between an installing surface and a product bottom part by a fine adjustment. An adjusti...
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JP2000254913A |
To prevent the deformation of an inner form and the deviation of a reinforcing strap from occurring during moving by fitting a square annular reinforcing strap onto the outer periphery of a long-size corner form member which is fixedly e...
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JP2000257172A |
To prevent infiltration of mortar from a hole by constituting an embedded nut protective cover of a rubber cylindrical cap having an internal bore into which the upper portion of the embedded nut can be fitted and a ceiling plate at its ...
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JP2000257618A |
To provide an insert buried in a wall surface of a concrete structure of a cable box or the like, placed in a corrosive environment, and technical method to be capable of manufacture by reducing a cost. This insert comprises a nut part 1...
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JP2000254914A |
To facilitate finishing work for the side face of a pillar and to uniformly and speedy place concrete over the whole space even for a narrow concrete molding space by a longitudinal placing type in molding an outer shell PCa pillar. An o...
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JP2000247571A |
To provide a rotary support which can hang up and return a concrete product in a stable condition, and generates little deformation and consumption even though it is used repeatedly. This rotary support 1 has a tubular body 5 inserted in...
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JP2000246721A |
To provide concrete unit moldings which are made lightweight to a maximum possible extent so as to facilitate an assembling work at site using a fiber-reinforced concrete and have heating and/or cooling function. A linear body with heati...
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JP2000246715A |
To enable a concrete product to be simply mass produced by eliminating an operation to release a concrete product from a conventional steel form and assemble form parts using bolts and clips, when a lightweight concrete product of compar...
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JP2000246723A |
To provide a removing device capable of pulling out operation without requiring heavy laborious and dangerous work at pulling out a plate from PC steel during the removal of a precast concrete pillar from the form, and not damaging the p...
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JP3086945B2 |
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JP3085660B2 |
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JP3087225B2 |
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JP3086318B2 |
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JP3084236B2 |
To simplify the attaching and detaching operation of an inside core and to improve the manufacturing efficiency of a block by a method wherein the inside core is fixed to the tip of an outside core, which is fixed to the inner surface si...
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JP2000233403A |
To make it difficult to develop bursting phenomena even when a nail or the like is driven or possible to reduce the bursting phenomena to the minimum even when the bursting phenomena occur by a method wherein nettings, each of which cons...
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JP3081151B2 |
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JP3080742B2 |
A composite preform or module comprises a filamentary reinforcement (16) deposited in a groove (12,44,46,32) pre-formed in a metal or ceramic foil (10,40,42). By depositing the filamentary reinforcement (16) in a groove (12,44,46,32) its...
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JP3081150B2 |
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JP3080084B2 |
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JP2000226898A |
To cope even with a concrete slab base board of any size by a buried structure to one kind of concrete slab base board. This buried structure 2 has an almost rectangular solid shape composed of a synthetic resin foaming body, and a diggi...
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JP2000225611A |
To provide insert fitting structure which prevents the dropping of an insert and the intrusion of slag into the insert and can form a recessed part without damaging concrete after the placing of concrete. In fitting structure, a spacer 5...
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JP3076852B2 |
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JP3075708B2 |
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JP3076566B1 |
[wrap up] [Task] In the inner formwork that is demolded by degassing the air, the demolding is ensured to be peeled off from all concrete surfaces by degassing, which saves labor. The core formwork 5 as a structural support having an out...
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JP3076567B1 |
[wrap up] [Task] Since it is related to the inner formwork for manufacturing hollow PCa members, it is possible to shift to the curing process as it is after the concrete placement is completed without the need for large-scale curing equ...
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JP2000218608A |
To simply, safely and inexpensively provide a jig for producing a PC product for transferring tensile force to a concrete after strength of the concrete is generated. A plate body 1 wherein a plurality of through-holes 11 are provided on...
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JP2000210794A |
To provide a welding backing material made of a refactory product which does not fall off even in case of breakage and also by which welding is continued regardless of bending or separation of a member for imparting conductivity during a...
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JP2000210926A |
To stabilize an operation with a sufficient elastic force without problem of a rust and to reduce a cost by devising a sliding part of a main cylinder and a sub-cylinder to obviate a grout leakage and adopting a novel elastic member. The...
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JP3070849B2 |
To manufacture a shell follow precast concrete pole of a high quality level while effectively utilizing a limited space by enhancing an efficiency of a form assembling and bar arrangement and improving an accuracy. The method for manufac...
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JP2000208597A |
To form a conductive layer having low inner resistance and substantially free from inner defect surely in a through hole by inserting a conductive wire into a ceramic substrate. A conductive metal wire 4 (preferably, a pointed tungsten w...
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JP2000202820A |
To obtain a weather resistance and a low cost without causing slide together with a heater by arranging a heating element in a main body of a cement base plastic product having an elastic plasticity even at a low temperature. Both of an ...
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JP2000202822A |
To remove a form easily and safely by preventing the protrusion of an excess length part from the form due to the tension of PC steel when the PC steel such as an unbond PC steel wire is inserted into a reinforced concrete structure memb...
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JP2000509340A |
(57) [Summary] The present invention eliminates costly and problematic firing or sintering steps and eliminates the separate canning and sizing of time-wasting refractory articles as required by conventional methods. , Chemical bond, sim...
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