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JP2010234633A |
To provide a method for producing concrete products which can produce a concrete product excellent in load resistance in good work properties by preventing the occurrence of minute cracks caused under external pressure etc.A fiber sheet ...
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JP2010234609A |
To remarkably decrease energy necessary for curing and preheating by controlling temperature of an end plate of a mold, and to easily and inexpensively manufacture the mold by eliminating the necessity of the strict closeness of a flow p...
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JP2010234631A |
To provide a method for producing a concrete pipe which can apply a proper expansion pressure to both of a synthetic resin pipe arranged inside concrete and a steel pipe arranged outside concrete.In the method for producing the concrete ...
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JP2010234629A |
To provide a method for producing concrete products which can efficiently produce a concrete product having at least two concrete layers from the inner circumference surface to the outer peripheral surface and can suppress the mixing of ...
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JP2010234632A |
To provide a method for producing concrete products which can efficiently produce a concrete product in which at least the side of the inner circumference surface has acid resistance and is inexpensive.A fiber sheet is arranged to divide...
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JP4553600B2 |
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JP4555417B2 |
A method of forming hollow bodies of ceramic material suitable for use as the discharge vessels of high intensity discharge lamps comprises forming a fugitive core of substantially pure graphite having a configuration matching the interi...
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JP4537660B2 |
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JP4527899B2 |
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JP4514875B2 |
To provide a transport pipe with a durable lining layer and a compression-resistant pipe with the least thickness. The material for the transport pipe consists of cement, line pozzolan powder, aggregate with diameter <=2 mm, water and wa...
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JP4502478B2 |
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JP4493760B2 |
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JP2010131835A |
To provide a method for constructing cast-iron pipe exterior concrete capable of shortening a time for repairing operation for a recess or a crack generated on the surface of the exterior concrete when performing the exterior work of the...
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JP4476403B2 |
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JP4475647B2 |
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JP2010115868A |
To improve appearance of a finished product, to suppress production of a waste material and to reduce material cost by preventing leakage of a hydraulic material charged between an outer tube and an inner tube when a laminated tube obtai...
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JP2010100505A |
To provide a concrete composition for centrifugal molding, which allows a centrifugal-molded secondary concrete product such as a pile, a pole and a Hume concrete pipe to exhibit high strength.The high-strength concrete composition for c...
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JP2010084176A |
To provide a production method which provides a cylindrical oxide sintered target material having high density and a uniform structure by an inexpensive method.In the method for producing a cylindrical oxide sintered target material, slu...
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JP4449006B2 |
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JP4448460B2 |
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JP4443666B2 |
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JP4438324B2 |
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JP4425266B2 |
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JP4425580B2 |
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JP4415409B2 |
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JP4409934B2 |
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JP2010017978A |
To provide a bolting/unbolting device for form of a concrete pole, which can adopt a bolt on the market used for the bolting/unbolting device for the form of the concrete pole, and dispense with a square washer and a hollow cylindrical b...
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JP4401739B2 |
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JP4392772B2 |
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JP2009292126A |
To provide a molding die capable of dewatering-molding surely and smoothly a cement containing slurry, capable of enhancing a molding efficiency, and capable of manufacturing various shapes of cement concrete products, a molding device u...
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JP4385088B2 |
To provide an epoch-making manufacturing method of a hollow curved extrusion product capable of simply and accurately imparting a necessary curved shape to the hollow tubular molded article extruded from the swingable die of an extruder ...
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JP4367900B2 |
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JP4357408B2 |
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JP4352259B2 |
A method and apparatus are disclosed for casting hollow-core concrete products, in which method concrete mix is fed into a mold of a delimited cross section traveling on a casting bed. According to the invention, the concrete mix is comp...
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JP4348119B2 |
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JP4346583B2 |
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JP2009215879A |
To make a working time, which is required for closely bringing reinforcing rods for a steel pipe into contact with the inner surface of a steel pipe, shorter than a working time by conventional work.An apparatus A for temporarily fixing ...
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JP4328040B2 |
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JP4286039B2 |
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JP2009132002A |
To prevent hair cracks in the mortar lining layer.A method of manufacturing a mortar lining pipe comprises supplying unhardened mortar m mixed with aggregates into a pipe body 1 and rotating the pipe body 1 by a rotating means A to conso...
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JP4260044B2 |
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JP4236966B2 |
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JP2009023265A |
To provide a molding machine for centrifugal molding of concrete wherein suspended water generated upon washing can easily be cleaned and maintenance and control can easily be conducted.Upon washing the molding machine 100 for centrifuga...
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JP2008297185A |
To provide a concrete composition for centrifugal molding which can reduce sludge generation, sludge solid portion and sludge solid ratio without deteriorating the moldability in the molding or the performance of a concrete product and e...
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JP2008291925A |
To improve production efficiency by eliminating a need for repairing a surface of a concrete exterior of an exterior concrete pipe because it is required to spend a lot of labors for finishing a surface of the concrete exterior, which le...
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JP4187471B2 |
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JP4169273B2 |
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JP2008246901A |
To provide a concrete finished product which uses a cement paste (concrete sludge generated during centrifugal forming of a concrete finished product), separated by centrifugal force as an industrial waste conventionally without being ef...
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JP2008247681A |
To provide a centrifugally compacted concrete product produced from a concrete for centrifugal compaction which has a good workability during form-filling and a low plasticity.The concrete for centrifugal compaction easy to fill in forms...
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JP3145653U |
To provide a support device capable of safely and easily transporting a hollow body to be adsorbed such as a powder compact such as ceramic powder without damaging it. This is a suction support device that sucks and supports an object to...
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