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1. 发明专利

JPH1112004A PRODUCTION OF REGENERATED AGGREGATE 失效
公开(公告)号：JPH1112004A
公开(公告)日：1999-01-19
申请号：JP18041097
申请日：1997-06-20
申请人： CHICHIBU ONODA CEMENT CORP
发明人： OOKAMI TAKEAKI , ONO KATSUSHI , FUJII SATORU
IPC分类号： B09B5/00 , C04B18/16 , C04B20/00
摘要： PROBLEM TO BE SOLVED: To readily obtain a high-quality coarse aggregate and fine aggregate, by grinding a concrete waste into a specific size, classifying the ground particles, recovering particles having specific particle diameters as a coarse aggregate and a fine aggregate, respectively, milling particles having particle diameters smaller than a specific particle diameter, peeling a cement paste material from the aggregate particles and recovering particles having a prescribed particle diameter as the fine aggregate. SOLUTION: A concrete waste is ground into particles in the size of about 0.8-1.2 times as much as the maximum diameter of the aggregate contained in the waste by using, for example, a jaw crusher. The crushed material is classified, for example, by a vibrating screen, particles having >=5 mm particle diameter are recovered as a coarse aggregate and particles having 0.6 mm to =0.15 mm particle diameter are recovered as the fine aggregate. Consequently a material slight in the attached cement taste and admixed cement paste particles are obtained.

2. 发明专利

JPH10272449A WASTE CONCRETE MATERIAL TREATING METHOD AND DEVICE THEREFOR 失效
公开(公告)号：JPH10272449A
公开(公告)日：1998-10-13
申请号：JP9498697
申请日：1997-03-28
申请人： CHICHIBU ONODA CEMENT CORP
发明人： ONO KATSUSHI , OOKAMI TAKEAKI , FUJII SATORU
IPC分类号： B09B5/00 , B02C17/04 , B02C17/06 , B02C17/18 , B02C17/20 , B02C21/00 , C04B18/16
摘要： PROBLEM TO BE SOLVED: To recover aggregate high in quality at a high recovery rate from waste concrete by making the diameter of balls in a ball mill within limits of a specified multiple of the maximum diameter of the aggregate and making a ball filling rate the specified ratio to perform milling. SOLUTION: For balls 18 as a milling medium to be filled into a milling part 20, the ball diameter and the ball filling rate are suitably set to the maximum diameter of used aggregate in waste concrete material. That is, by making the ball diameter within a range of 1.5-2.5 times the maximum diameter of used aggregate, without pulverizing the aggregate, milling in a mortar part is suitably performed. By making the ball filling rate 10-15% (vol.) of mill inside volume (volume of the one chamber side of a ball mill 7), without pulverizing the aggregate, milling in the mortar part is suitably performed. In this way, by highly treating the waste concrete material, the aggregate of high quality is recovered at a high recovery rate.

3. 发明专利

JPH1121156A PRODUCTION OF REGENERATED AGGREGATE 失效
公开(公告)号：JPH1121156A
公开(公告)日：1999-01-26
申请号：JP18913997
申请日：1997-06-30
申请人： CHICHIBU ONODA CEMENT CORP
发明人： OOKAMI TAKEAKI , FUJII SATORU , ONO KATSUSHI
IPC分类号： B09B5/00 , B07B9/00 , C04B18/16 , C04B20/00
摘要： PROBLEM TO BE SOLVED: To provide regenerated aggregates with high yield by crushing a concrete waste product into sizes less than specific times as large as the max. size of aggregates contained in the waste product, immersing into an acid solution, eluting a cement paste component, taking out particles larger than specific sizes, classifying and regenerating as coarse aggregates and fine aggregates. SOLUTION: The concrete waste product is crushed into sizes less than about 0.8-1.2 times as large as the max. size of the aggregates composing the waste product, and the crushed product is immersed into either one kind of acid solution among hydrochloric acid, nitric acid and acetic acid, the cement paste component is eluted, and the immersed product is ground or milled in the solution, then the particles >=0.15 mm particle sizes are taken out from the solution and classified and the particle >=5 mm particle sizes are generated as the coarse aggregates, and the particles from >=0.15 mm to

4. 发明专利

JPH1112002A PRODUCTION OF REGENERATED AGGREGATE 失效
公开(公告)号：JPH1112002A
公开(公告)日：1999-01-19
申请号：JP18572597
申请日：1997-06-26
申请人： CHICHIBU ONODA CEMENT CORP
发明人： ONO KATSUSHI , OOKAMI TAKEAKI , FUJII SATORU
IPC分类号： B09B5/00 , B03B5/28 , B07B9/00 , C04B18/16 , C04B20/00
摘要： PROBLEM TO BE SOLVED: To simply regenerate and produce a high-quality coarse aggregate slight in attached cement paste, by grinding a concrete waste into a specific size, classifying the ground particles, recovering a coarse aggregate and a fine aggregate having specific particle diameters, respectively, abrading particles having particle diameters smaller than a specific particle diameter, redispersing the particles, screening particles having a specific particle diameter or larger than it by specific gravity and recovering particles having a prescribed specific gravity as the fine aggregate. SOLUTION: A concrete waste is ground into particles in the size of about 0.8-1.2 times as much as the maximum diameter of the aggregate contained in the waste by using, for example, a jaw crusher. The crushed material is classified, for example, by a vibrating screen and particles having >=5 mm particle diameter are recovered as a coarse aggregate and particles having 0.6 mm to =.15 mm particle diameter are selected by gravity by using a gravity classifier preferably set in a settling chamber and particles having >=2.3 specific gravity are recovered as the fine aggregate.

5. 发明专利

JPH10114555A LOW-HEAT HYDRAULIC MATERIAL AND ITS PRODUCTION 失效
公开(公告)号：JPH10114555A
公开(公告)日：1998-05-06
申请号：JP28742896
申请日：1996-10-09
申请人： CHICHIBU ONODA CEMENT CORP
发明人： OOKAMI TAKEAKI , FUJII SATORU , ONO KATSUSHI
IPC分类号： C04B7/24
摘要： PROBLEM TO BE SOLVED: To utilize a large amt. of spent concrete fine powder without lowering the strength as a low-heat hydraulic material by using a spent concrete fine powder and a blast-furnace slag fine powder as the main components of the material, incorporating a cement fine powder and/or gypsum into the material to constitute the hydraulic material and specifying the fineness of the material. SOLUTION: The spent concrete fine powder obtained by processing a fine grain generated when spent concrete is regenerated and with the fineness controlled preferably to >=5000cm /g Blaine value and the blast-furnace slag fine powder with the fineness adjusted favorably to >=10000cm /g Blaine value are used as the main components of the material, and cement fine powder and/or gypsum are incorporated into the material to constitute a hydraulic material. In this case, the fineness of the hydraulic material is controlled to >=8500cm /g Blaine value. Further, 60-80wt.% spent concrete fine powder, 14-38% blast- furnace slag fine powder, 1-12% cement fine powder or 2-6% gypsum, expressed in terms of anhydrous gypsum, are preferably incorporated into the material.

6. 发明专利

JPH08175856A METHOD FOR TREATING CONCRETE WASTE MATERIAL 失效
公开(公告)号：JPH08175856A
公开(公告)日：1996-07-09
申请号：JP33673894
申请日：1994-12-26
申请人： CHICHIBU ONODA CEMENT CORP
发明人： FUJII SATORU , ONO KATSUSHI , MATSUNAGA YASUMI
IPC分类号： B09B5/00 , C04B7/24 , C04B7/38 , C04B18/16
摘要： PURPOSE: To effectively recover an aggregate and having the same characteristics as those of an aggregate and a cement component from a concrete waste material. CONSTITUTION: A concrete waste material is coarsely ground into a concrete bulk, which is calcined preferably at 300-700 deg.C, ground, sieved into an aggregate part and a mortar part and recovered as a concrete aggregate and/or a cement raw material.

7. 发明专利

JPH1112003A PRODUCTION OF REGENERATED AGGREGATE 失效
公开(公告)号：JPH1112003A
公开(公告)日：1999-01-19
申请号：JP18572697
申请日：1997-06-26
申请人： CHICHIBU ONODA CEMENT CORP
发明人： OOKAMI TAKEAKI , ONO KATSUSHI , FUJII SATORU
IPC分类号： B09B5/00 , B03B4/00 , B07B9/00 , C04B18/16 , C04B20/00
摘要： PROBLEM TO BE SOLVED: To obtain a coarse aggregate and a fine aggregate free from the admixture of cement paste particles, sight in attached cement paste, simply regenerate and produce a high-quality coarse aggregate slight in attached cement paste, by grinding a concrete waste into a specific size, classifying the ground particles, recovering particles having specific particle diameters as a coarse aggregate and a fine aggregate, respectively, classifying particles having particle diameters smaller than a specific particle diameter by using a centrifugal air classifier and recovering particles having a prescribed specific gravity as the fine aggregate. SOLUTION: A concrete waste is ground into particles in the size of about 0.8-1.2 times as much as the maximum diameter of the aggregate contained in the waste by using, for example, a jaw crusher. The crushed material is classified, for example, by a vibrating screen, particles having >=5 mm particle diameter are recovered as a coarse aggregate and particles having 0.6 mm to =0.15 mm particle diameter are recovered as the fine aggregate. A cement paste material attached to the aggregate can be released by using the centrifugal air classifier.

8. 发明专利

JPH10273661A SOLIDIFYING MATERIAL HAVING LOW ALKALI CONTENT AND ITS PRODUCTION 失效
公开(公告)号：JPH10273661A
公开(公告)日：1998-10-13
申请号：JP9483297
申请日：1997-03-28
申请人： CHICHIBU ONODA CEMENT CORP
发明人： OOKAMI TAKEAKI , ONO KATSUSHI , FUJII SATORU
IPC分类号： C02F11/00 , C04B7/345 , C09K17/02 , C09K17/10 , C09K103/00
摘要： PROBLEM TO BE SOLVED: To obtain the subject solidifying material exhibiting excellent solidifying function accompanying little dissolution of high-alkali component by using concrete powder and ready-mixed concrete sludge powder as main raw materials. SOLUTION: This solidifying material is composed mainly of a dehydrated material produced by heating concrete powder and/or ready-mixed concrete sludge powder preferably at 400-800 deg.C to evaporate water molecules from the constituent component of the heated concrete or ready-mixed concrete sludge powder. The solidifying material is preferably incorporated with slag. The amount of the heated concrete powder and/or ready-mixed concrete sludge powder is preferably 1.5-9 pts.wt. based on 1 pt.wt. of the slag. The obtained solidifying material has high water-absorption and exhibits hydraulic property by hydration. Waste concrete and ready-mixed concrete sludge can be effectively utilized by this process.

9. 发明专利

JPH10225669A LOW ALKALI SOLIDIFYING MATERIAL 失效
公开(公告)号：JPH10225669A
公开(公告)日：1998-08-25
申请号：JP4458697
申请日：1997-02-13
申请人： CHICHIBU ONODA CEMENT CORP
发明人： OOKAMI TAKEAKI , ONO KATSUSHI , FUJII SATORU
IPC分类号： C02F11/00 , B09B3/00 , C04B28/00 , C04B28/02 , C09K17/02 , C09K17/10 , C09K103/00
摘要： PROBLEM TO BE SOLVED: To effectively utilize a large quantity of fly ash and molten slag to restrain the quantity of cement used by making contain cement, fly ash and slag powder to prepare low alkali solidifying material for subjecting to solidifying treatment sludge or the like generated in civil work or dredge work. SOLUTION: This low alkali solidifying material is that which contains cement, fly ash and slag powder, and in order to decrease an elution pH value immediately after mixing with soft mud, the quantity of the cement is made small, for example, the quantity of the cement is within a range of 15-30 pts.wt., and mixing is performed in the ratio of 40-60 pts.wt. fly ash to 20-35 pts.wt. slag powder. As the cement, various kinds of Portland cement such as high- early-strength and moderate-heat Portland cement are used. The high-early- strength Portland cement excels in providing strength and is suitably used. As the slag powder, molten slag powder made using various kinds of waste such as blast furnace slag, trash incineration products an industrial waste as raw materials is suitably used.

10. 发明专利

JPH07187737A PRODUCTION OF ARTIFICIAL AGGREGATE 失效
公开(公告)号：JPH07187737A
公开(公告)日：1995-07-25
申请号：JP32683793
申请日：1993-12-24
申请人： CHICHIBU ONODA CEMENT CORP , SHIMIZU CONSTRUCTION CO LTD
发明人： NOZAKI KENJI , SUEOKA TADASHI , FUJII SATORU , ONO KATSUSHI , KATO MASAHIRO , SHINOZAKI AKIO , NAITO KENICHI , NAKANISHI MASATOSHI
IPC分类号： C04B14/02 , C04B14/14
摘要： PURPOSE:To easily obtain an artificial aggregate having sufficient foaming performance, low water absorption ratio and high strength by compounding pumiceous volcanic ash obtained by sieving and having smaller diameter than a specific size with an adhesive material, subsequently pulverizing and granulating the mixture and baking the obtained granules. CONSTITUTION:A pumiceous sand that is white volcanic ash deposit is sieved to obtain a classified material of

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