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JP3683698B2 |
To make an actually working inner frame lightweight and facilitate each of manufacturing steps and at the same time, save on the manufacturing cost for a formwork with other advantages such as enhanced productivity and the reduction of c...
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JP3684186B2 |
To provide a method for producing a high strength PC steel strand. This high strength PC strand is provided by having 19.3 mm standard diameter constituted by twisting 19 wires as prescribed by the JIS standard, 240-250 mm2 total cross s...
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JP3684312B2 |
To check filling of PC grout in a sheath. PC grout having a hardening time longer than the time for developing the strength of concrete required for the tension of PC steel is injected into a sheath before the concrete is placed in a for...
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JP2005213948A |
To substantially perfectly execute work of connecting and drawing concrete members without bringing about deterioration in rigidity of the connecting part of the concrete members.A concrete member connecting structure comprises a connect...
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JP2005212435A |
To provide a manufacturing process of a prestressed-precast concrete beam which can alleviate wiring work of a complicated PC strand cable, and a joining method of a precast concrete beam and a pole which can increase the earthquake stre...
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JP3675276B2 |
To provide a form system for a U-shaped PC member for forming the U-shaped PC member in which a convertible U-shaped inner form is disposed upside down, a concrete is placed from its bottom side to improve its chargeability and having a ...
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JP3673162B2 |
To keep a gap of hollow forms in an adjustable state. In a buried hollow form fixing structure for a hollow concrete floor plate, the hollow form 2 is arranged in parallel on a form 1 for a slab and the hollow form 2 is fixed on the form...
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JP3673103B2 |
To accurately and simply set a position of a clamp and to eliminate an obstruction in cleaning or the like of a form in an apparatus for manufacturing a concrete panel. The clamping device 1 for a C-shaped steel comprises a support shaft...
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JP2005187270A |
To provide a grout material which can be filled particularly even into a sheath having ≥100 m length and a curved shape without forming an unfilled part in the sheath and in which the unfilled part of the grout material is not present ...
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JP3662041B2 |
PURPOSE: To prevent the damage of resiliency by easily mounting a vibrationproof elastic body on a concrete sleeper while hindering the intrusion of concrete into an uneven space section for giving the elastic body resiliency. CONSTITUTI...
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JP2005145039A |
To provide a cement product reduced in weight and its application cost, insuring a strength necessary as the cement product.A plurality of cylindrical strength members 4 for freely supporting a load in the axis direction of the cylinder ...
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JP2005144938A |
To provide a cover for a tendon which can lighten work in the field, integrate a tendon with concrete, prevent the corrosion of the tendon, and surely control the strainable period of the tendon and the curing time of a curable resin and...
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JP2005139833A |
To provide a flexible concrete structure and its molding method, capable of performing the sufficient effect, when requiring flexible performance such as causing deformation in the structure by external force such as an earthquake, for p...
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JP2005138335A |
To provide a manufacturing method for a large-sized ALC panel enhanced in quality such as appearance, physical properties or the like by enhancing the positional precision of reinforcing rods when the foaming of a raw material slurry is ...
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JP3654444B2 |
To provide a channel block having an earth retaining function which allows an operator to easily and positively bolt and join a main body block and a base block to each other without requiring a forced posture in a wide working space. A ...
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JP3650782B2 |
To realize the simple and finely finished production of a precast concrete plate, from the edge faces of which reinforcing bars are projected, by a method wherein this form has a structure split into an upper form body and a lower form b...
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JP2005514532A |
A monofilament plastic fiber useful in reducing plastic shrinkage cracking of concrete articles has been discovered. The fiber has a core that is a polyolefin that is at least partially enveloped by a sheath that is a copolymer of an ole...
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JP3647609B2 |
To prove means for effectively preventing salt damage to degrade the strength of a concrete structure by the expansion of the iron members in the structure by rust. The finding that the chloride ions in the concrete structure are the cau...
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JP2005119937A |
To provide a pseudo-stone tile or a brick using shells of scallop generated from processing factories in fishing ports and personal households after removing the flesh, and a persimmon juice.Shells of scallop as a waste are piled as they...
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JP2005120547A |
To provide a reinforcing material made from a fiber-reinforced synthetic resin without becoming a cause of peeling off of concrete, etc., by corrosion.This reinforcing material is produced from a composite fiber bundle 1 obtained by bund...
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JP3645292B2 |
PURPOSE: To keep the spring constant of a tabular elastic body at a fixed value, and to improve durability by preventing the intrusion of gravel and water to a bonding surface by fast sticking and bonding the tabular elastic body onto th...
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JP3645022B2 |
To provide a concrete panel of thin profile with excellent panel cutting property and excellent panel strength by providing a plurality of high specific gravity parts of rib shape, and providing the high specific gravity parts from the p...
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JP2005111864A |
To provide a side form which makes a gap filling tool fitted to the side form only by work from the outside of the form and can secure stable performance even when the side form is used repeatedly for a long time.The side form is compose...
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JP2005111977A |
To provide a method for manufacturing a PC wall material using a simple apparatus at a low cost, which can manufacture a PC wall material using a conventional stressed abut and introduce the predetermined prestress to the end part thereo...
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JP3639101B2 |
To suppress a large quantity of energy consumption in the case of manufacturing a recycled building material by embedding an embedding part in an intermediate part of interior and exterior finish parts formed of a hardened material harde...
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JP2005097995A |
To provide a precast PC member, a method of manufacturing the precast PC member, and a method of jointing these precast PC members capable of introducing prestress also in the precast PC member and the other member.In this precast PC mem...
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JP2005088221A |
To provide a porous concrete body constituted so as to realize a structure suitable for growing algae at a low cost using a waste material such as slag or the like and capable of accelerating the adhesion growth of algae to restore a sub...
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JP3634924B2 |
To improve a ring reinforcing bar interval accuracy by automating positioning and disposing of the bar of a concrete pole, fixing the bar without binding, and shortening an operating time. The method for assembling ring reinforcing bars ...
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JP3634833B2 |
To develop a plastic-made insert for hoisting a concrete product having a superior strength equal to that of a metallic insert. A metallic bar body is arranged in the horizontal direction inside a plastic cylindrical body having an openi...
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JP2005076184A |
To provide a segment manufacturing method according to which a segment having a connecting slot formed in a contact surface in a segment circumferential direction, is manufactured with efficiency, thereby minimizing use of disposal membe...
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JP2005068649A |
To provide a reinforcement mat for reinforcing an ALC panel and an ALC panel using the same capable of improving the mechanical bending strength of the panel and the bending characteristic of a panel in which shrinkage cracks are caused ...
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JP3628942B2 |
To provide a refractory material for obtaining a lining-worked structure having sufficient fire resisting performance against tunnel fire. In the refractory material formed by mixing cement, water and an aggregate, ≥50% aggregate fine ...
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JP2005506263A |
The invention relates to a process for carrying out panels, tiles and similar using agglomerates of different minerals wherein the terracotta granules or other minerals are mixed with bi-components or thermosetting resins and spread by m...
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JP3622548B2 |
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JP2005042491A |
To provide a prestressed concrete structure for shortening a construction period, and eliminating a column side structural burden, without using a filler for integrating a beam and a column.A precast concrete beam 1 with a short column h...
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JP2005041143A |
To provide a method for producing an ALC panel which prevents the occurrence of a break and a crack and is excellent in appearance by reducing shadows formed above a reinforcement embedded in the ALC panel and blow holes exposed to the s...
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JP2005036621A |
To provide a luminous/fluorescent molding buried concrete product, in which a luminous/fluorescent molding is not peeled easily from a concrete block even when the molding repeatedly receives a heating and an impact and which can be manu...
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JP3617545B2 |
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JP2005030096A |
To provide a method of manufacturing an embedded form holder made of concrete, with good mass productivity in a short period of time under the conditions of room temperature and normal pressure without water curing, the form holder allow...
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JP3616871B2 |
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JP2005023777A |
To improve the strength of a reinforced decorated panel while maintaining its lightweightness and to prevent warp and deformation of the same.The reinforced decorated panel 1 comprises a layer of a flat plate-like decorative member 2 mad...
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JP2005022393A |
To provide a centrifugal force bamboo-reinforced concrete pipe compacted by a centrifugal force by rotating a formwork at a high speed, in which a bamboo material is used as a cylindrical bamboo cage to be laid in the pipe.The bamboo mat...
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JP3615013B2 |
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JP3612580B2 |
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JP3610283B2 |
To provide a mobile type pretensioning machine capable of reducing a size of a member and being lightened by operating only an axial force to a compression beam in the case of tensioning PC steel materials for pretensioning. The mobile t...
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JP2004360399A |
To provide a concrete member capable of improving the overall rigidity and flexibility of a structure, reducing works at a site at a time when the concrete member is connected.In the concrete member 1a to 1e used by a coupling in the pre...
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JP2004360178A |
To provide a sheath connecting member for prestressed concrete, capable of connecting a sheath pipe by easy and simple work, and capable of surely connecting the sheath pipe even if there is no skilled technology, in the sheath pipe inse...
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JP2004360177A |
To provide a sheath pipe, hardly causing remaining of air, by sufficiently placing concrete and an aggregate included in the concrete in an outer peripheral part of the sheath pipe, and sufficiently filling grout in respective recessed p...
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JP3604315B2 |
To obtain a concrete reinforcing material to be disposed near a surface of a concrete structure, wherein the material can be easily disposed at a suitable position along the inner surface of a form at placing concrete, and which is suffi...
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JP3602091B2 |
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