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1. 发明专利

JPH0776825A CONSTRUCTION OF UNDERGROUND CONTINUOUS CONCRETE WALL 失效
公开(公告)号：JPH0776825A
公开(公告)日：1995-03-20
申请号：JP24624193
申请日：1993-09-07
申请人： KAJIMA CORP , SANSHO CO
发明人： SAKATA NOBORU , SETO KENICHIRO , OTOMO TADANORI , NAKAHARA YASUSHI , SHIGEMATSU KAZUO , MINAMI MASAYOSHI , YOSHIZAKI MASATO
IPC分类号： C04B7/02 , C04B24/38 , C04B28/02 , C04B103/32 , C04B103/44 , E02D5/18 , E02D5/20
摘要： PURPOSE:To prevent separation in water and retain high fluidity and construct a homogenious and high strength underground continuous wall, by adding a high performance water reducing agent and gellan gum when placing concrete to an excavated ground. CONSTITUTION:Concrete is placed in an excavated ground charged with a stabilizing liquid and provided with arranged reinforcing rods to construct a underground continuous wall. In this time, a high performance water reducing agent or a high performance water AE reducing agent 0.1-4.0wt.% and gellan gum 0.01-0.5wt.% is added against unit cement weight respectively. And slump flow is made 50-70cm. In this case, it is favorable that gellan gum is a dried powder composed of polysaccharide originated from microorganisms produced by aerobic fermentation of ATTC 31555 bacteria of alkaliguenus strain.

2. 发明专利

JPH01317707A PREPARATION OF COOLED CONCRETE KNEADED MIXTURE 失效
公开(公告)号：JPH01317707A
公开(公告)日：1989-12-22
申请号：JP14833688
申请日：1988-06-17
申请人： KAJIMA CORP
发明人： MIZOBUCHI TOSHIAKI , NAKAHARA YASUSHI , YURUGI MASAHIRO , NIKAIDO MINORU
IPC分类号： B01F3/12 , B28C5/46 , B28C7/02 , B28C7/04
摘要： PURPOSE:To obtain a uniformly cooled material mixture by spraying liquid nitrogen to a solid material during dry mixing from a spray nozzle to prepare a cooled solid mixture and adding compounding water to said mixture to perform kneading. CONSTITUTION:A lid 2 is mounted on a concrete mixer 1 and an exhaust duct 3 is mounted to the lid 2 and a spray nozzle 4 is arranged thereto. Liquid nitrogen is supplied to the spray nozzle 4 from a fixed pipe 5 to be emitted into the mixer 1 from nozzle orifices 7 through the passages 8 in a disc body 6. At this time, the liquid nitrogen is instantaneously expanded and gasified in the atmosphere to be injected from the nozzle orifices 7 at a high speed and the disc body 6 is rotated around the axis of the fixed pipe 5 to uniformly spray liquid nitrogen over the wide area of a solid material. Since the solid material is continuously fluidized by the rotation of mixer blades 10, local cooling is eliminated and uniform cooling is achieved over the whole of the material. Temp. is detected by a temp. sensor 11 and, when the inner wall temp. of the mixer 1 lowers to proper temp., dry mixing and the jet operation of liquid nitrogen are stopped and compounding water is added to the mixer 1 to perform kneading.

3. 发明专利

JPH01313349A COOLING EQUIPMENT FOR SAND BLENDED WITH CONCRETE 失效
公开(公告)号：JPH01313349A
公开(公告)日：1989-12-18
申请号：JP14522088
申请日：1988-06-13
申请人： KAJIMA CORP
发明人： NIKAIDO MINORU , NAKAHARA YASUSHI , YURUGI MASAHIRO , MIZOBUCHI TOSHIAKI
IPC分类号： C04B14/02 , B28C7/00
摘要： PURPOSE:To efficiently cool raw material sand by making the revolving shaft of a spiral classifier hollow, introducing liquid nitrogen into the hollow part and discharging it through an aperture in case of introducing the raw material sand into a water tank and washing sand with water and classifying sand while utilizing the spiral classifier. CONSTITUTION:One end 7 of a spiral classifier 1 wherein a spiral blade 3 is fitted to a revolving shaft 2 made of a hollow cylinder is immersed under the water surface of a water tank 5 and the other end 8 is positioned to the part above the water surface. Raw material and 9 and water 10 are continuously introduced into the water tank 5 and sand 9 is scraped up by the rotated spiral blade 3 and classified and the classified sand is taken out from the other end 8. Simultaneously liquid nitrogen 15 is introduced into the hollow part of the revolving shaft 2 and discharged into water from an aperture 14 provided to the lower end of the revolving shaft 2, and both sand 9 and the classifier 1 are cooled by heat of gasification of liquid nitrogen and thereby low-temp. sand for a product is obtained. Milling temp. of concrete can be lowered by using this sand for the product.

4. 发明专利

JPH0140172B2 失效
公开(公告)号：JPH0140172B2
公开(公告)日：1989-08-25
申请号：JP20887084
申请日：1984-10-04
申请人： KAJIMA CORP
发明人： NAKAHARA YASUSHI , OOTOMO TADANORI
IPC分类号： E02D5/40 , E02D15/06

5. 发明专利

JPS5736217A Solidification of rubble 失效
标题翻译：空值
公开(公告)号：JPS5736217A
公开(公告)日：1982-02-27
申请号：JP10983480
申请日：1980-08-12
申请人： Kajima Corp , Mitsui Petrochem Ind Ltd
发明人： OOTOMO TADANORI , NAKAHARA YASUSHI , MOTOHASHI KENICHI , SUENAGA AKINORI , MISAKI AKIO , IZUMI TAKASHI
IPC分类号： E02B3/18 , C04B26/04 , C04B26/28 , E02B5/02 , E02D5/46 , E02D15/06 , E04G21/02
摘要： PURPOSE: To perform the solidifying work of rubble under water or at the edge of water with high reliability by setting fresh concrete under a specific condition.
CONSTITUTION: In a cylindrical container filled with 400cc of water, 5cm in diameter and 40cm in height, 400cc of a cement paste of a water/cement ratio of 60% is flowed down from the surface of water and allowed to stand for setting. Then, sampling is made from the uppermost 5cm part and the lowermost 5cm part of the hardened cement paste and the specific gravities are measured in accordance with a testing method, and then a tackifier, e.g., polyvinyl alcohol, by which the difference in specific gravities between both the samples is made 0.1 or less by binding the cement particles is added in 0.2W4.0wt% to cement to fresh concrete. And, the fresh concrete is flowed into rubble under water or at the edge of water.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过在特定条件下放置新鲜混凝土，以高可靠性在水下或水边缘进行瓦砾加固。构成：在填充有400cc水，圆直径5cm，高40cm的圆筒形容器中，将400cc水/水泥比为60％的水泥浆从水面向下流下并放置。然后，从硬化水泥浆的最上面的5cm部分和最下面的5cm部分进行取样，并根据试验方法测定比重，然后用增粘剂，例如聚乙烯醇，比重差两个样品之间的粘合度通过粘合将0.1〜0.4重量％的水泥颗粒添加到新拌混凝土中。而且，新鲜混凝土在水下或水边缘流入瓦砾。

6. 发明专利

JPS54163922A CONSTANT CONCRETE QUANTITY FEEDER 失效
公开(公告)号：JPS54163922A
公开(公告)日：1979-12-27
申请号：JP7279778
申请日：1978-06-16
申请人： KAJIMA CORP
发明人： NAITOU TAKUMI , NAKAHARA YASUSHI , OOTOMO TADANORI , MOTOHASHI KENICHI
IPC分类号： E02D15/00 , B28B13/02 , E04G21/02 , E04G21/04

7. 发明专利

JPS5667057A METHOD OF AND APPARATUS FOR SLANTLY CASTING DOWN CONCRETE 失效
公开(公告)号：JPS5667057A
公开(公告)日：1981-06-05
申请号：JP14291179
申请日：1979-11-05
申请人： KAJIMA CORP
发明人： NAKAHARA YASUSHI , OOTOMO TADANORI , YURUGI MASAHIRO , NAITOU TAKUMI , KAIHOU KENICHI
IPC分类号： E02D15/00 , B65G11/20 , E04G21/04

8. 发明专利

JPS52126033A METHOD OF AND DEVICE FOR DROPPING CONCRETE WITH LARGE FALL 失效
公开(公告)号：JPS52126033A
公开(公告)日：1977-10-22
申请号：JP4273676
申请日：1976-04-15
申请人： KAJIMA CORP
发明人： OOTOMO TADANORI , OOSUGA TAKASHI , NAKAHARA YASUSHI , NAITOU TAKUMI , TANIMOTO MAMORU
IPC分类号： B65G11/00 , B65G11/10 , E02D15/00 , E04G21/04

9. 发明专利

JPS517734A TONNERUFUKUKONO SEKOHOHO 失效
公开(公告)号：JPS517734A
公开(公告)日：1976-01-22
申请号：JP7938974
申请日：1974-07-10
申请人： KAJIMA CORP
发明人： NAKAHARA YASUSHI , MYAMOTO KINZABURO , DOBASHI JUJI , NAKAZATO YOSHIAKI
IPC分类号： E04G21/02 , E21D11/10

10. 发明专利

JPH06270134A PRODUCTION OF HIGHLY FLOWABLE CONCRETE 失效
公开(公告)号：JPH06270134A
公开(公告)日：1994-09-27
申请号：JP8387693
申请日：1993-03-19
申请人： KAJIMA CORP
发明人： YURUGI MASAHIRO , NAKAHARA YASUSHI , SAKATA NOBORU
IPC分类号： B28C7/04 , E04G21/02
摘要： PURPOSE:To reduce the labor and time accompanied by the kneading of high flowable concrete and to efficiently supply highly flowable concrete to the casting spot. CONSTITUTION:When highly flowable concrete with a slump flow value of 50-70cm prepared by compounding water 4, cement 2, sand, gravel, a fine powder 3, a thickener 6 and a dispersant 5 is kneaded, water, cement, the fine powder, the thickener and the dispersant are kneaded in a paste mixer 1 to prepare paste for highly flowable concrete and this paste is mixed with a prescribed amt of sand and gravel in a truck agitator.

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