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1. 发明专利

JPH07330415A MATERIAL FOR CIVIL ENGINEERING 失效
公开(公告)号：JPH07330415A
公开(公告)日：1995-12-19
申请号：JP12148794
申请日：1994-06-02
申请人： NIPPON TETSUDO KENSETSU KODAN , NIPPON CHEMICAL IND , NITTETSU CEMENT KK
发明人： KITO MAKOTO , SUENAGA MITSUHIRO , KAJIWARA YUZO , BABA HIDEAKI , SEKINE AKIRA , KUWABARA SEIJI , MIYOSHI EIJI , SHIMOBAYASHI SEIICHI , TAKAMI AKIRA
IPC分类号： E21D11/00 , C04B28/26
摘要： PURPOSE:To provide a material for civil engineering having resistance against sea water and high strength which is useful to stabilize the ground influenced by sea water or for a backfilling material for construction of a tunnel. CONSTITUTION:This material for civil engineering consists of a slurry containing a special cement as an effective component and a water glass soln. having >=4.0 molar ratio of SiO2/M2O (M is Na or K). The special cement contains 60-80wt.% fine powder of blast furnace slag and 20-40wt.% portland cement.

2. 发明专利

JPH06219796A GROUTING AGENT AND METHOD FOR GROUTING THEREOF 失效
公开(公告)号：JPH06219796A
公开(公告)日：1994-08-09
申请号：JP1190593
申请日：1993-01-27
申请人： NIPPON CHEMICAL IND , NITTETSU CEMENT KK
发明人： BABA HIDEAKI , TAKEUE HIROMITSU , SEKINE AKIRA , SHIMOBAYASHI SEIICHI , MIYOSHI EIJI , KARATSU KEIICHI
IPC分类号： C04B7/14 , C04B7/19 , C04B22/06 , C04B22/10 , C04B22/16 , C04B28/08 , C04B28/24 , C09K17/00 , C09K17/02 , C09K17/10 , C09K17/12 , C09K103/00
摘要： PURPOSE:To provide a nonpollution and durable ground grouting agent capable of improving the ground with excellent hardenability and permeability for not only ordinary ground but also a sand layer or soft ground, etc., receiving immersion in seawater and a method for grouting thereof. CONSTITUTION:This grouting agent comprises a hydraulic mixed fine powder slurry consisting essentially of blast furnace slag, silica sol and a mixture of an alkali metallic carbonate with a soluble phosphorus compound as an assistant as basic components. The grouting agent is used by injecting a mixture solution of the slurry of the hydraulic mixed fine powder with the silica sol and assistant into the ground according to a one-shot method or 1.5-shot method.

3. 发明专利

JPH06145662A GROUND GROUTING AGENT AND ITS GROUTING EXECUTION METHOD 失效
公开(公告)号：JPH06145662A
公开(公告)日：1994-05-27
申请号：JP29598292
申请日：1992-11-05
申请人： NIPPON CHEMICAL IND , NITTETSU CEMENT KK
发明人： BABA HIDEAKI , TAKEGAMI HIROMITSU , SEKINE AKIRA , SHIMOBAYASHI SEIICHI , MIYOSHI EIJI , KARATSU KEIICHI
IPC分类号： C09K17/00 , C04B28/04 , C04B28/24 , C09K17/02 , C09K17/10 , C09K17/12 , C09K103/00 , E02D3/12
摘要： PURPOSE:To obtain a nonpollution and durable ground grouting agent having excellent hardenability for sand layers or soft ground and to provide execution method therefor. CONSTITUTION:This ground grouting agent is composed of a slurry of mixed blast furnace slag powder which is ultrafine mixed powder, composed of 75-90 pts.wt. blast furnace powder and 10-25 pts.wt. portland cement clinker powder and having a Blaine specific surface area within the range of 7000-85000cm /g and silica sol as basic components.

4. 发明专利

JPS63206346A INJECTION MATERIAL FOR REPAIRING CONCRETE STRUCTURE 失效
公开(公告)号：JPS63206346A
公开(公告)日：1988-08-25
申请号：JP3625087
申请日：1987-02-18
申请人： NITTETSU CEMENT KK
发明人： KOIDE YOSHIJI , SHIMOBAYASHI SEIICHI
IPC分类号： E04G23/02 , C04B28/14

5. 发明专利

JPH07309658A GROUT MATERIAL 失效
公开(公告)号：JPH07309658A
公开(公告)日：1995-11-28
申请号：JP12203694
申请日：1994-05-12
申请人： NITTETSU CEMENT KK
发明人： SHIMOBAYASHI SEIICHI , KUBO SATOSHI , SATOU RIYUUSUKE
IPC分类号： C04B7/19 , C04B22/08 , C04B22/12 , C04B28/04 , C04B28/08
摘要： PURPOSE:To obtain a grout material having an excellent quick setting property even at the time of a low temp. by compounding specific ratios of a quick setting material, a blast furnace slag fine aggregate and a high-performance water-reducing agent into a cementitious material consisting of Portland cement and blast furnace slag fine powder. CONSTITUTION:The cementitious material consisting of 30 to 70 pts.wt. Portland cement and 70 to 30 pts.wt. blast furnace slag fine powder is prepd. The quick setting material which consists of a mixture composed of the quick setting material A essentially consisting of 12CaO.7Al2O3 and the quick setting material B essentially consisting of 11CaO.7Al2O3.CaF2 and in which the compounding ratio of the quick setting material A in total 100 pts.wt. of the quick setting materials A and B is 60 to 80 pts.wt. is compounded at 30 to 60 pts.wt., the blast furnace slag fine aggregate having the max. size of 0.3 to 0.15mm at 90 to 140 pts.wt. and the high-performance water-reducing agent at 0.2 to 2 pts.wt. with 100 pts.wt. such cementitious material, by which the grout material is obtd. The required strength necessary for opening to traffic in three hours after placement is obtainable with such grout material even in an extremely cold season.

6. 发明专利

JPH0244269B2 失效
公开(公告)号：JPH0244269B2
公开(公告)日：1990-10-03
申请号：JP3625087
申请日：1987-02-18
申请人： NITTETSU CEMENT KK
发明人： KOIDE YOSHIJI , SHIMOBAYASHI SEIICHI
IPC分类号： E04G23/02 , C04B28/14

7. 发明专利

JPH0476148A THREADED REINFORCING JOINT AND GROUT MATERIAL THEREWITH 失效
公开(公告)号：JPH0476148A
公开(公告)日：1992-03-10
申请号：JP18934790
申请日：1990-07-19
申请人： NIPPON STEEL CORP , NITTETSU CEMENT KK
发明人： SATO NOBUO , MURAI HIDETO , SUZUKI AKINOBU , SHIMOBAYASHI SEIICHI
IPC分类号： E04C5/18 , E04G21/12
摘要： PURPOSE:To improve fine resistance and constructibility by adding iron powder to a constituent material consisting of superfine-grain concrete, a viscosity conditioner and a nonshrinker as a shrinkage inhibitor, and mixing a water reducing agent with the constituent material in addition. CONSTITUTION:There is prepared a constituent material made up of setting superfine-grain cement, grain constitution is 5- 35% of less than 2mum, 15- 90% of less than 5mum over 2mum, and below 45% of less than 10mum over 5mum, to 40 - 60% in weight percentage, 25- 45% in viscosity conditioner and 10- 20% in nonshrinker, respectively. Next, iron powder of less than 0.3mm in grain size and 50- 200mum in mean grain size is added to the constituent material as well within the range of 50- 150% against cement quality, as a shrinkage inhibitor. Then, a water reducing agent is added and mixed within the range of not to exceed 30% against the cement quality, forming a grout material. Moreover, each of threaded reinforcing bars 4a, 4b is screwed in a coupler 5, and a grout 6 formed into paste form after adding water to the group material is poured into a clearance between the reinforcing bars 4a, 4b and the coupler 5 from a filler hole 7.

8. 发明专利

JPH0361624B2 失效
公开(公告)号：JPH0361624B2
公开(公告)日：1991-09-20
申请号：JP12154885
申请日：1985-06-06
申请人： NITTETSU CEMENT KK
发明人： KOIDE YOSHIJI , SHIMOBAYASHI SEIICHI , HOSHI TOSHIHIKO
IPC分类号： C04B7/153 , C04B24/22 , C04B24/30 , C04B28/08

9. 发明专利

JPH0350294A GROUT FOR SOLIDIFYING SEA WATER/SAND GROUND 失效
公开(公告)号：JPH0350294A
公开(公告)日：1991-03-04
申请号：JP18375789
申请日：1989-07-18
申请人： NITTETSU CEMENT KK
发明人： KOIDE YOSHIJI , SHIMOBAYASHI SEIICHI , HOSHI TOSHIHIKO
IPC分类号： E02D3/12 , C09K17/00 , C09K17/02 , C09K103/00
摘要： PURPOSE:To obtain the title grout which can prevent a sandy ground containing sea water as interstitial water from being liquefied due to an earthquake by using a quenched blast furnace slag having a specified particle diameter. CONSTITUTION:A quenched blast furnace slag having a maximum particle diameter of 16mum or smaller and at most 15wt.% stimulating agent comprising gypsum dihydrate or anhydrous gypsum are dispersed in water in the presence of a dispersant.

10. 发明专利

JPH05345652A 失效
公开(公告)号：JPH05345652A
公开(公告)日：1993-12-27
申请号：JP15484292
申请日：1992-06-15
申请人： NIPPON STEEL CORP , NITTETSU CEMENT KK
发明人： OOTSUKI NOBUAKI , TAKEUE HIROMITSU , SHIMOBAYASHI SEIICHI , MOCHIZUKI TAKESHI , KAWAMURA AKIYOSHI
IPC分类号： C04B7/19 , C04B28/04 , C04B28/08 , E02D3/12 , E04G23/02
摘要： PURPOSE:To provide the grout material having a high strength and a salt- insulating property by adding a binder, a swelling additive, a resin emulsion, methyl cellulose, a high performance water-reducing agent and small aggregate to specific furnace slag fine powder as a main component. CONSTITUTION:The grout material comprises 100wt.% of a cement composition, 5-25wt.% of a resin emulsion (e.g. a rubber latex), 0.005-0.5wt.% of methyl cellulose, 0.2-2.0wt.% (as solid content) of a high performance water-reducing agent (e.g. melaminesulfonic acid-formaldehyde condensate salt), 80-200wt.% of a =1,7.

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