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1. 发明专利

JPH0653234B2 失效
公开(公告)号：JPH0653234B2
公开(公告)日：1994-07-20
申请号：JP27505487
申请日：1987-10-30
申请人： NIPPON KOKAN KK , NITSUSHIN ENJINIARINGU KK
发明人： YANAKA HIDEOMI , SATO KAZUYOSHI , HARA MIKIKAZU , KOKUBU MUTSUO , YAMADA YUKYOSHI , KANO OSAMU
IPC分类号： B02C23/08 , B02C23/14 , C04B7/147 , C04B7/52

2. 发明专利

JPH04260644A HYDRAULIC COMPOSITION FOR HIGHLY STRONG CONCRETE AND PRODUCTION OF HIGHLY STRONG MORTAR OR CONCRETE 失效
公开(公告)号：JPH04260644A
公开(公告)日：1992-09-16
申请号：JP1877591
申请日：1991-02-12
申请人： NIPPON KOKAN KK
发明人： NAKAMURA NOBUYUKI , HARA MIKIKAZU , IMAI NOBUHIRO , SATO KAZUYOSHI
IPC分类号： C04B18/14 , C04B20/00 , C04B22/14 , C04B28/04 , C04B40/02
摘要： PURPOSE:To provide a hydraulic composition giving mortar or concrete having a large initial strength and a large long-term strength by employing blast furnace glassy slag fine powder having a specific particle distribution. CONSTITUTION:A hydraulic composition comprises 20-80wt.% of blast furnace glassy fine powder comprising >=90wt.% of particles passing through a sieve having a size of 10mum, 50-80wt.% of the particles passing through a sieve having a size of 5mum and 10-20wt.% of the particles passing through a sieve having a size of 1mum as shown in the oblique line region of the figure, 80-20wt.% of a cement and, if necessary, gypsum in an amount of

3. 发明专利

JPH0274551A UNDERWATER CONCRETE COMPOSITION 失效
公开(公告)号：JPH0274551A
公开(公告)日：1990-03-14
申请号：JP22255188
申请日：1988-09-07
申请人： NIPPON KOKAN KK , TAISEI CORP
发明人： SATO KAZUYOSHI , HARA MIKIKAZU , ARAKI SHIGERU , SAKAMOTO MASANOBU , HATSUZAKI TOSHIO
IPC分类号： C04B28/08
摘要： PURPOSE:To improve reduction in workability by blending an underwater concrete composition mixed with high blast slag having high Blaine specific surface area with an admixture containing a setting retarder. CONSTITUTION:An under water concrete composition obtained by blending a binding material consisting of glassy blast furnace slag having powder degree of 6,000-20,000 cm /g Blaine specific surface area and an alkali material and an aggregate with an admixture containing a setting retarder. Lignin sulfonate oxycarboxylate, saccharide oxide, silicofluoride, etc., may be cited as the setting retarder used and a setting retarder consisting essentially of oxycarboxylate having high retarding effects is preferable among the setting retarders. The amount of the setting retarder added is preferably 0.1-3.0 pts.wt. based on 100 pts.wt. binding material comprising the slag having high Blaine specific surface area and the alkali material.

4. 发明专利

JPH01176261A PRODUCTION OF INORGANIC CURED BODY 失效
公开(公告)号：JPH01176261A
公开(公告)日：1989-07-12
申请号：JP33370487
申请日：1987-12-29
申请人： NIPPON KOKAN KK
发明人： ARAKI SHIGERU , SATO KAZUYOSHI , HARA MIKIKAZU , YANAKA HIDEOMI
IPC分类号： C04B28/08 , C04B7/19
摘要： PURPOSE:To obtain a cured body suitable for high-strength construction materials in a short curing period, by mixing a specified proportion of an alkaline material, water and fine slag powder produced by grinding and classifying blat-furnace granulated slag, putting the resultant mixture into a mold followed by steam curing. CONSTITUTION:First, blast-furnace granulated slag with glass conversion rate of >=85% and basicity of >=1.4 is ground followed by classify the resultant ground slag to prepare fine slag powder with a maximum particle size of /g using e.g. a ball mill, and the slag thus ground be classified using e.g. an air stream classifier.

5. 发明专利

JPS6483545A HYDRAULIC COMPOSITION 失效
公开(公告)号：JPS6483545A
公开(公告)日：1989-03-29
申请号：JP24144087
申请日：1987-09-25
申请人： NIPPON KOKAN KK
发明人： SATO KAZUYOSHI , ARAKI SHIGERU , HARA MIKIKAZU , YANAKA HIDEOMI , YAMAMOTO RYOJI , OTSUKI MITSURU
IPC分类号： C04B28/08
摘要： PURPOSE:To obtain a hydraulic composition having light weight and excellent stability of the quality and harmless to environment and human body, by kneading a specific blast furnace slag powder with gypsum, lime, an Al2(SO4)3- containing material and water. CONSTITUTION:100pts.wt. of blast furnace slag powder having a Blaine specific surface area of 6,000-20,000cm /g, a vitrification ratio of >=85% and a basicity of >=1.4 is mixed with 5-30pts.wt. of gypsum dihydrate, 5-20pts.wt. of slaked lime, an Al2(SO4)3-containing material, optionally 0.1-30pts.wt. (based on 100pts. wt. of the obtained hydrated product) of nonasbestos fiber (e.g. glass fiber) and water.

6. 发明专利

JPS63206344A CEMENT COMPOSITION FOR UNDERWATER CONCRETE 失效
公开(公告)号：JPS63206344A
公开(公告)日：1988-08-25
申请号：JP3774487
申请日：1987-02-23
申请人： NIPPON KOKAN KK , TAISEI CORP
发明人： SATO KAZUYOSHI , ARAKI SHIGERU , HARA MIKIKAZU , YANAKA HIDEOMI , HATSUZAKI TOSHIO , SAKAMOTO MASANOBU , UJI KIMITAKA
IPC分类号： C04B28/02 , C04B24/16 , C04B24/30 , C04B24/38

7. 发明专利

JPS61270240A MANUFACTURE OF HYDRAULIC MATERIAL 失效
公开(公告)号：JPS61270240A
公开(公告)日：1986-11-29
申请号：JP10953185
申请日：1985-05-22
申请人： NIPPON KOKAN KK
发明人： FUKAYA KAZUO , SATO KAZUYOSHI , KONISHI EIICHIRO
IPC分类号： C04B7/38 , C04B7/147 , C04B24/02

8. 发明专利

JPH0459674A PRODUCTION OF LIGHT-WEIGHT FORMED ARTICLE 失效
公开(公告)号：JPH0459674A
公开(公告)日：1992-02-26
申请号：JP17127490
申请日：1990-06-28
申请人： NIPPON KOKAN KK
发明人： SATO KAZUYOSHI , NAKAMURA NOBUYUKI , HARA MIKIKAZU , KAMURA HISAYA
IPC分类号： C04B14/38 , B28B1/52 , C04B5/00 , C04B24/00 , C04B24/24 , C04B28/08 , C04B38/00
摘要： PURPOSE:To improve the productivity of a formed article composed of a powder produced by modifying vitreous blast-furnace slag powder with an alkaline aqueous solution by adding a specific additive and water to the powder, adding an anionic flocculent to the obtained slurry and forming the mixture by a paper-machine. CONSTITUTION:Powder of vitreous blast-furnace slag having a Blaine specific surface area of >=4,000cm2/g is treated with an aqueous solution of an alkali such as NaOH having a concentration of >=0.5N at about 90 deg.C for >=30min to adjust the BET specific surface area to 20-140m /g by a glass-dissolution reaction and a hydration reaction. The treated product is washed with water and dehydrated by heating at about 250-800 deg.C to further increase the specific surface area. A slurry composition having a solid content of about 0.5-4wt.% is produced by mixing 100 pts.wt. of the modified slag powder with 3-20 pts.wt. of a polymer additive such as rubber latex, 1-10 pts.wt. of reinforcing fiber such as glass fiber, 1-5 pts.wt. of a paper-making improving fiber such as cellulose fiber, 5-20 pts.wt. (based on 100 pts.wt. of the polymer additive) of a cationic flocculent and a proper amount of water. The objective light-weight formed article having a bulk-density of about 0.2-1g/cm can be produced by adding 0.002-1 pt.wt. of an anionic flocculent to 100 pts.wt. of the slurry, forming the mixture by a paper-machine and drying the product.

9. 发明专利

JPH0459672A LAMINATE OF LIGHT-WEIGHT MOLDED ARTICLE 失效
公开(公告)号：JPH0459672A
公开(公告)日：1992-02-26
申请号：JP17248990
申请日：1990-06-29
申请人： NIPPON KOKAN KK
发明人： SATO KAZUYOSHI , NAKAMURA NOBUYUKI , HARA MIKIKAZU , KAMURA HISAYA
IPC分类号： C04B28/08 , C04B5/00 , C04B28/18 , C04B38/00
摘要： PURPOSE:To improve the flexural strength of a layer composed mainly of a powder produced by modifying vitreous blast-furnace slag powder with an alkaline aqueous solution by laminating the above layer with a layer composed mainly of the above powder or hydrated calcium silicate. CONSTITUTION:Powder of vitreous blast-furnace slag having a Blaine specific surface area of >=4,000cm /g is treated with an aqueous solution of an alkali such as NaOH having a concentration of >=0.5N at about 90 deg.C for >=30min to adjust the BET specific surface area to 20-140m /g by a glass-dissolution reaction and a hydration reaction. The treated product is washed with water and dehydrated by heating at about 250-800 deg.C to further increase the specific surface area. A slurry is produced by mixing 100 pts.wt. of a main material composed of the surface-modified slag powder or its mixture with hydrated calcium silicate with 1-20wt.% of a polymer additive, 1-20wt.% of synthetic pulp, 1-20wt.% of reinforcing fiber, proper amount of a cationic polymer flocculent and water. The slurry is poured into a mold, dehydrated under pressure to form a core layer and bonded to a surface layer made of natural stone, metal, etc., to obtain the objective light-weight molded article.

10. 发明专利

JPH0459670A LIGHT-WEIGHT FORMED BODY HAVING IMPROVED SURFACE PROPERTY 失效
公开(公告)号：JPH0459670A
公开(公告)日：1992-02-26
申请号：JP16987090
申请日：1990-06-29
申请人： NIPPON KOKAN KK
发明人： SATO KAZUYOSHI , NAKAMURA NOBUYUKI , HARA MIKIKAZU , KAMURA HISAYA
IPC分类号： C04B28/08 , C04B5/00 , C04B38/00 , C04B41/62 , C04B41/65
摘要： PURPOSE:To improve the surface property of a formed body composed mainly of a powder produced by modifying vitreous blast-furnace slag powder with an alkaline aqueous solution by impregnating a polymer additive, its precursor or an inorganic impregnation material into the surface of the formed body. CONSTITUTION:Powder of vitreous blast-furnace slag having a Blaine specific surface area of >=4,000cm /g is treated with an aqueous solution of an alkali such as NaOH having a concentration of >=0.5N at about 90 deg.C for >=30min to adjust the BET specific surface area to 20-140m /g by a glass-dissolution reaction and a hydration reaction. The treated product is washed with water and dehydrated by heating at about 250-800 deg.C to further increase the specific surface area. The surface-modified slag powder is mixed with 3-20wt.% of a polymer additive, 1-20wt.% of synthetic pulp, 2-15wt.% of reinforcing fiber, proper amount of a cationic polymer flocculent and water to obtain a slurry. The slurry is formed by a paper-machine and dried by heating to obtain a porous formed body having a bulk density of 0.2-1g/cm . A polymer additive, its precursor or an inorganic impregnation agent is impregnated to the surface of the formed body and dried with heat to obtain a light-weight formed body having modified surface property.

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