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1. 发明专利

JPH11116289A HIGH STRENGTH SPRAYED CONCRETE OR MORTAL 失效
公开(公告)号：JPH11116289A
公开(公告)日：1999-04-27
申请号：JP28481897
申请日：1997-10-17
申请人： OHBAYASHI CORP , ISHIKAWAJIMA KENZAI KOGYO KK , RIBUKON ENGINEERING KK
发明人： SONODA NAOSHI , NAKAJIMA MASATOMO , YAMAMOTO ATSUSHI , OSUGA TETSUO , ARAI HIROYUKI , HOSHI HIDENORI , TAMURA TADAAKI
IPC分类号： E21D11/10 , C04B7/19 , C04B28/02 , C04B28/08
摘要： PROBLEM TO BE SOLVED: To improve long-term age strength with a low cost by specifying the replaced ratio of a blast furnace slag fine powder to the total mass of a binder and water/binder ratio. SOLUTION: The sum of the cement mass C per 1 m sprayed concrete or mortal containing the blast furnace slag fine powder and the blast furnace slag fine powder mass Sg is expressed as the binder total mass P(=C+Sg). The replaced ratio Sg/P of the blast furnace slag fine powder Sg to the binder total mass P is controlled to 10-40% and the water-binder ratio W/P is controlled to 30-50%. The surface area of the blast furnace fine powder is not particularly limited, but one having 5000-7000 cm /g surface area is most excellent in due consideration of the market price and strength exhibiting property due to latent hydraulicity. In the production of the concrete or the mortal, the strength exhibiting property and the workability are improved by using a process for kneading by dividing the water for kneading into a 1st and a 2nd kneading water for 2 stages. The workability and the safety to operators are improved by using an alkali free liquid accelerating agent.

2. 发明专利

JPH09242135A LIQUID STORAGE TANK 失效
公开(公告)号：JPH09242135A
公开(公告)日：1997-09-16
申请号：JP4928696
申请日：1996-03-06
申请人： ISHIKAWAJIMA KENZAI KOGYO KK
发明人： OSUGA TETSUO , HOSHI HIDENORI
IPC分类号： E03B11/14
摘要： PROBLEM TO BE SOLVED: To provide a storage liquid tank capable of quickly replacing existing solution in a tank with a newly supplied liquid without being disturbed by a column inside the tank when creating a swirling flow in the tank. SOLUTION: A liquid storage tank 1 has a bottom and a cylindrical shape, and a plurality of columns 2 are arranged at certain intervals along the peripheral direction on a bottom plate of the tank and these columns also support the upper ceiling portion of the tank. A drain pipe 5 is provided in a central portion 3A inside the tank 1 separated by a plurality of columns 2, and a water supply pipe 4 is provided in the outer peripheral portion inside the tank 1. A rectifying plate portion 6 is provided which is slanted in the same direction relative to the radial direction of the tank 1 at a plurality of columns 2, and the direction of the rectifying plate portion 6 is the direction of guiding a swirling flow created by water discharged from a water supply pipe 5 inside the tank to the central portion of the tank 1.

3. 发明专利

JPH09165720A REINFORCING METHOD OF CYLINDRICAL COLUMN 失效
公开(公告)号：JPH09165720A
公开(公告)日：1997-06-24
申请号：JP33080395
申请日：1995-12-19
申请人： ISHIKAWAJIMA KENZAI KOGYO KK
发明人： OSUGA TETSUO , SAITO RYOJI
IPC分类号： E01D21/00 , B32B5/18 , E01D22/00 , E01D101/40 , E04C3/36 , E04G23/02
摘要： PROBLEM TO BE SOLVED: To prevent buckling without bringing demerits like defects of the appearance or increase of the foundation load, by injecting a foaming material into the inside space of a cylindrical wall vertically extending and closely sticking the foamed body made of the foaming material the inside face of the cylindrical wall. SOLUTION: An injection hole for a foaming material is formed at the upper end of the cylindrical wall 1 of a cylindrical column 10 and a liquid foaming material 15 is infected from the infection hole into the inside space S1 of the cylindrical wall 1. After the injection, the foaming material 15 expands in the inside space S1 to form a foamed body 16. And then, the external face of the foamed body 16 is closely stuck to the inside face 2a of a steel plate 2 defining the inside face of the cylindrical wall 1. Accordingly, since the foamed body 16 charged in the cylindrical column 10 supports with a uniform pressure the inside face 2a of the steel plate 2, a high preventive effect against buckling is brought out. And since the specific gravity of the foamed body 16 is remarkably smaller than the concrete, and the weight of cylindrical column 10 increases only a little, the cylindrical column 10 imposes the load only a little to the foundation. And further, the external face of the cylindrical column 10 shows almost no change and hence, no defect is brought in the external appearance.

4. 发明专利

JP2001182014A SIDEWALK OF HIGHWAY BRIDGE OR THE LIKE 失效
公开(公告)号：JP2001182014A
公开(公告)日：2001-07-03
申请号：JP37194299
申请日：1999-12-27
申请人： ISHIKAWAJIMA KENZAI KOGYO KK
发明人： OSUGA TETSUO , HASEGAWA SATOSHI
IPC分类号： E01D19/12 , E01D101/00
摘要： PROBLEM TO BE SOLVED: To enhance durability, earthquake resistance and workability. SOLUTION: Since large and small innumerable bubbles in cellular concrete 15 filled in a sidewalk 1a of a concrete floorslab 1 uniformly disperse cracks caused by the contraction of the cellular concrete 15 over the whole, a large crack is not generated. Since bond force of the cellular concrete 15 to the walk part 1a is weakened by bubbles, influence on the sidewalk 1a of a crack generated in the cellular concrete 15 is reduced. Thus, the useful life of a road bridge is lengthened, and earthquake resistance is improved. The cellular concrete is lightweight, and since the whole weight of the road bridge is reduced, the earthquake resistance is enhanced further. Besides, since a specific gravity and viscosity of the cellular concrete are small, execution work is facilitated, and a cost can be reduced.

5. 发明专利

JPH1193593A DEVICE FOR SPRAYING CONCRETE 失效
公开(公告)号：JPH1193593A
公开(公告)日：1999-04-06
申请号：JP25393797
申请日：1997-09-18
申请人： ISHIKAWAJIMA KENZAI KOGYO KK
发明人： OSUGA TETSUO
IPC分类号： E21D11/10
摘要： PROBLEM TO BE SOLVED: To reduce the deterioration of a work environment by feeding accelerator efficiently to provide a concrete whose quality can be maintained for a long period of time. SOLUTION: A spraying machine 2 is provided to send a concrete into a concrete hose 3 so as to be sprayed from the forward end thereof. An accelerator feed part 7 is provided to fed an accelerator from an accelerator feed source 6 through an accelerator feed hose 5 into the concrete sprayed from the hose 3 so as to be mixed into the concrete. An operation condition sensing part 12 is provided to sense the feed rate of concrete from the spray machine 2 and the feed timing of concrete. A flow rate sensor 13 is provided to sense the flow rate of concrete in the hose 3. A control part 15 is provided to control a flow rate control valve 14 provided in the hose 5 to feed the accelerator in proper quantity corresponding to the amount and timing of the sprayed concrete based on sensing signals from the part 12 and the sensor 13.

6. 发明专利

JP2002062240A VISCOSITY MEASURING DEVICE 失效
公开(公告)号：JP2002062240A
公开(公告)日：2002-02-28
申请号：JP2000250259
申请日：2000-08-21
申请人： ISHIKAWAJIMA KENZAI KOGYO KK
发明人： MUROGA YOICHIRO , OSUGA TETSUO
IPC分类号： G01N11/12 , G01N11/00 , G01N33/38
摘要： PROBLEM TO BE SOLVED: To simply measure the viscosity of a viscous material such as concrete or mortar. SOLUTION: A gauge head 3 for sinking into a sample such as concrete or mortar contained in a bath is composed of a shaft 11 and stabilizing plates 12 to be sunken into the sample, installed at the tip of the shaft 11. Plural pieces of stabilizing plates 12 are installed in the peripheral direction of the shaft 11 at certain intervals. The stabilizing plates 12 are inclined in the same direction as the axial line of the shaft 11.

7. 发明专利

JP2001165838A APPARATUS AND METHOD FOR MEASURING VISCOSITY 失效
公开(公告)号：JP2001165838A
公开(公告)日：2001-06-22
申请号：JP34543599
申请日：1999-12-03
申请人： ISHIKAWAJIMA KENZAI KOGYO KK
发明人： OSUGA TETSUO , MUROGA YOICHIRO
IPC分类号： G01N11/12
摘要： PROBLEM TO BE SOLVED: To easily measure the viscosity of a liquid sample. SOLUTION: A settlement plate 31 is completely immersed in a concrete 30 in a container 11 to ensure a predetermined space h between a face side 31A and a reverse side 31B of the settlement plate 31 and inner surfaces 21A, 21A of the container 11. A settlement member 12 is settled by the self weight to calculate the settlement speed V. The measurement is repeated by setting the weight W of the settlement member 12 to different values. The measured value of the settlement speed V changing according to the weight W of the settlement member 12 is linearly approximated based on the formula (1), and the viscosity μ of the concrete 30 is calculated from the gradient of this line. V=W.h/2.S.1/μ (1), where S is the surface area of the face side 31A or the reverse side 31B.

8. 发明专利

JPH10166334A SHUTTERING FOR CONCRETE PRODUCT 失效
公开(公告)号：JPH10166334A
公开(公告)日：1998-06-23
申请号：JP33425396
申请日：1996-12-13
申请人： ISHIKAWAJIMA KENZAI KOGYO KK
发明人： OSUGA TETSUO , MUROGA YOICHIRO
IPC分类号： C04B40/00 , B28B7/44
摘要： PROBLEM TO BE SOLVED: To make it possible to efficiently set a gas-permeable sheet to be arranged along the lower face of a top form to be installed on the upper part of a bottom form and, make the gas-permeable sheet easily detachable. SOLUTION: This shuttering 11 for a concrete product consists of a bottom form 12 with a lateral form part 15 provided on the periphery of a bottom plate part 14 and a top form 13 provided, through a gas-permeable sheet 17 for removing a bubble generated above a formed concrete, on the upper part of the bottom form 12. In addition, a sheet securing groove 16 is formed at spots which come into contact with the lateral form part 15 constituting the bottom form 12 on the lower face 13a side of the top form 13. Further, the gas-permeable sheet 17 is stretched on the periphery of the concrete shuttering 11, and then is arranged along the lower face 13a of the top form 13 in such a state that a tension is applied, by insetting an elastic sheet securing member 18 into the sheet securing grooves 16 through the gas-permeable sheet 17 arranged along the lower face 13a of the top form 13.

9. 发明专利

JP2002062239A VISCOSITY MEASURING DEVICE 失效
公开(公告)号：JP2002062239A
公开(公告)日：2002-02-28
申请号：JP2000250258
申请日：2000-08-21
申请人： ISHIKAWAJIMA KENZAI KOGYO KK
发明人： MUROGA YOICHIRO , OSUGA TETSUO
IPC分类号： G01N11/12 , G01N11/00 , G01N33/38
摘要： PROBLEM TO BE SOLVED: To simply measure the viscosity of a viscous material such as concrete or mortar. SOLUTION: This viscosity measuring device is composed of a bath 2 for housing a sample S which is a measuring object such as concrete or mortar; a gauge head 3 for sinking into the sample S housed in the bath 2; and a detecting part 4 for detecting the sinking speed of the gauge head 3 into the sample S. The detecting part 4 is composed of a sensor 23 for detecting measuring points A, B installed in upper and lower two points of the gauge head 3 sinking into the sample S; and a measuring instrument 24 for finding the sinking speed of the gauge head 3. Measuring pieces 15A, 15B are installed in the measuring points A, B, and a detecting piece 25 with which the measuring pieces 15A, 15B come in contact is installed in the sensor 23.

10. 发明专利

JP2001322116A METHOD FOR MANUFACTURING CONCRETE 失效
公开(公告)号：JP2001322116A
公开(公告)日：2001-11-20
申请号：JP2000145491
申请日：2000-05-17
申请人： ISHIKAWAJIMA KENZAI KOGYO KK
发明人： OSUGA TETSUO , HOSHI HIDENORI
IPC分类号： B28C7/00
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a concrete capable of efficiently mixing the concrete by a mixing means such as a mixer or the like. SOLUTION: The method for manufacturing the concrete comprises the steps of detecting a torque of mixing a predetermined amount of a concrete constituting powder with water at each water-to-powder ratio by mixing them while sequentially charging the powder and the water, detecting the water-to-powder ratio with the mixing torque present before or after a maximum value of the torque becoming a trough, and setting the ratio as a water-to-powder ratio for deciding a primary water amount of dividing and mixing the concrete constituting powder with respect to the concrete constituting powder.

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