| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Hydraulic composition | JP2008297673 | 2008-11-21 | JP2009173527A | 2009-08-06 | SAGAWA KEIICHIRO; HAMADA DAISUKE |
| <P>PROBLEM TO BE SOLVED: To provide a hydraulic composition in which cement restrained from generating heat when hydrated early is used and whose initial fluidity, fluidity retention and working efficiency are improved. <P>SOLUTION: The hydraulic composition includes a copolymer which is obtained by polymerizing monomers comprising a specific monomer 1 shown by general formula (1) and a specific monomer 2 shown by general formula (2) with a specific monomer 3 shown by general formula (3), and the early hydration-restrained cement. The contents of the monomer 1, the monomer 2 and the monomer 3 in the copolymer and the weight ratio of (the monomer 2)/(the monomer 3) are kept in specified ranges, respectively. <P>COPYRIGHT: (C)2009,JPO&INPIT | ||||||
| 62 | Cement addition material and cement composition | JP2007253215 | 2007-09-28 | JP2009084087A | 2009-04-23 | KUROKAWA DAISUKE; HONMA KENICHI; KOBAYAKAWA MAKOTO; UCHIYAMA YASUHIRO |
| <P>PROBLEM TO BE SOLVED: To provide a cement addition material which uses industrial waste, domestic waste, construction waste soil or the like as raw material, undergoes low deterioration in strength development even when the addition to cement is increased, and has low heat of hydration and excellent flowability. <P>SOLUTION: The cement addition material includes a pulverized material of a fired material A having hydraulic modulus (H.M.) of 1.65-1.75, containing ≤8.0 mass% Al<SB>2</SB>O<SB>3</SB>and 2.2-5.0 mass% Fe<SB>2</SB>O<SB>3</SB>, containing as an essential component 2CaO-SiO<SB>2</SB>and 4CaO-Al<SB>2</SB>O<SB>3</SB>-Fe<SB>2</SB>O<SB>3</SB>and further containing 12CaO-7Al<SB>2</SB>O<SB>3</SB>and/or 4CaO-3Al<SB>2</SB>O<SB>3</SB>-SO<SB>3</SB>. The cement composition includes ≤50 mass% of the cement addition material internally to the cement. <P>COPYRIGHT: (C)2009,JPO&INPIT | ||||||
| 63 | Cement admixture and cement composition | JP2006165481 | 2006-06-15 | JP2007331976A | 2007-12-27 | HONMA KENICHI; MORIYA MASAHIKO; UCHIDA SHUNICHIRO; UCHIDA MASATAKA; ICHIKAWA MAKIHIKO |
| <P>PROBLEM TO BE SOLVED: To provide a cement admixture lowering heat of hydration of a cement composition, improving the flowability and reducing elution of 6-valent chromium from a cement hardened body. <P>SOLUTION: The cement admixture is obtained by firing a CaO raw material, an SiO<SB>2</SB>raw material, an Al<SB>2</SB>O<SB>3</SB>raw material and an Fe<SB>2</SB>O<SB>3</SB>raw material under a reducing atmosphere or under the coexisting of a combustible substance and pulverizing the resultant fired material and has hydraulic modulus (H.M) of 0.8-1.5. The cement admixture is obtained by firing the CaO raw material, the SiO<SB>2</SB>raw material, the Al<SB>2</SB>O<SB>3</SB>raw material and the Fe<SB>2</SB>O<SB>3</SB>raw material and after that, cooling under the reducing atmosphere or under coexisting of a combustible substance to obtain a fired material and pulverizing the resultant fired material and has hydraulic modulus (H.M) of 0.8-1.5. <P>COPYRIGHT: (C)2008,JPO&INPIT | ||||||
| 64 | セメント混和材、セメント組成物、及びそれを用いた中性化抑制方法 | JP2003521164 | 2002-08-20 | JPWO2003016234A1 | 2004-12-02 | 盛岡 実; 実 盛岡; 樋口 隆行; 隆行 樋口; 寛之 大橋; 中島 康宏; 康宏 中島 |
| 中性化抑制効果や水和熱抑制効果を有するセメント混和材及びセメント組成物を提供する。γ−2CaO・SiO2、α−CaO・SiO2、及びカルシウムマグネシウムシリケートからなる群から選ばれる1種または2種以上の非水硬性化合物を含有するセメント混和材、該混和材を含有するセメント組成物、及び、該セメント混和材又はセメント組成物を用いた中性化抑制方法。本発明によれば、特に高炉セメントに使用した場合に顕著な中性化抑制効果が得られ、また、製鋼スラグ等の有効利用に繋がり、クリンカ配合量を低減できる。更に、低環境負荷型のセメント組成物とすることができ、また、土木・建築業界で使用されるEN規格適合セメントにも適する。 | ||||||
| 65 | Porous particulate cement and its production | JP2923196 | 1996-02-16 | JPH09227183A | 1997-09-02 | TANAKA ISAO; SUZUKI NOBUO |
| PROBLEM TO BE SOLVED: To obtain a new cement capable of improving the flowability of cement pastes, mortars or concretes and increasing the strengths of cement cured products. SOLUTION: A cement slurry is spray-dried to obtain a particulate cement comprising spherical porous particles. The cement slurry may be mixed with additives such as a high performance water-reducing agent, a high performance AE water-reducing agent and a coagulation-retarding agent and subsequently spray-dried. For example, a cement slurry containing 40-60wt.% of a cement is spray-dried in a 30-300°C gas to obtain the granulate cement comprising spherical porous particles having a particle diameter of 60-200μm. The obtained porous particulate cement may be impregnated with liquid additives, a heat storage substance (for preventing the heat generation of mass concrete), etc. COPYRIGHT: (C)1997,JPO | ||||||
| 66 | Cement composition | JP4296495 | 1995-03-02 | JPH08239249A | 1996-09-17 | INOUE TOSHIKATSU; NARUSE HIROYASU; YOSHIDA HISATSUGU |
| PURPOSE: To obtain a cement composition excellent in fluidity, kneadability and strength developability, and suppressed in temperature rise during cure with suppressed heat generation during hydration. CONSTITUTION: This cement composition comprises a total of 100 pts.wt. of 50-92 pts.wt. of high-belite-based Portland clement, 5-25 pts.wt. of silica fume and 3-25 pts.wt. of limestone fine powder. The high-belite-based Portland cement stands reduced to a minimum in the amounts of both alite and aluminate constituting clinker mineral composition in the cement in order to reduce the heat of hydration to a minimum so as to prevent the temperature rise of the resultant concrete structural body and also stands sufficiently increased in the amount of belite excellent in long-term strength developability. Owing to using the high-belite-based Portland cement, heat generation due to cement hydration can be suppressed to low levels; therefore, in the resultant thick-walled high- strength concrete structural body, temperature rise is small, crack development prevented, and strength developability improved. COPYRIGHT: (C)1996,JPO | ||||||
| 67 | Shrinkage reducing agent for cement and hydration heat reducing agent for cement | JP22714592 | 1992-08-26 | JPH0672748A | 1994-03-15 | NAKANO SHOICHI; KOYAMA NORIYUKI |
| PURPOSE:To provide a shrinkage reducing agent for cement and a heat-of- hydration reducing agent for cement excellent in handling property and addition effect. CONSTITUTION:The shrinkage reducing agent for cement and the heat-of- hydration reducing agent are made of neopentylglycol. Since neopentylglycol is solid at ordinary temp, it cam be powdered and mixed with cement or the like for use. And since neopentylglycol previously is soluble in water it can be used in aquous solution state, thus improving handling property. Extremely excellent shrinkage reducing effect and heat-of-hydration reducing effect are attained only by adding relatively small quantity of neopentylglycol. | ||||||
| 68 | How to select the blast furnace slowly cooled slag powder, which is suitable for use as a cement admixture | JP2010048229 | 2010-03-04 | JP5189119B2 | 2013-04-24 | 実 盛岡; 康宏 中島; 隆行 樋口; 光男 高橋; 賢司 山本; 悦郎 坂井; 正機 大門 |
| 69 | Cement admixture, cement composition, and cement concrete using the same | JP2003538089 | 2002-06-07 | JP5059285B2 | 2012-10-24 | 康宏 中島; 悦郎 坂井; 正機 大門; 賢司 山本; 隆行 樋口; 実 盛岡; 光男 高橋 |
| A cement admixture of a low environmental load type, capable of reducing hexavalent chromium, having a small slump loss or heat of hydration, hardly neutralized and capable of suppressing autogenous shrinkage to a low level; a cement composition; and cement concrete employing it, are presented. <??>The cement admixture comprises a slowly cooled slag powder which contains melilite as the main component and which has a carbon dioxide absorption of at least 2%, has a CO2 absorption of at least 2%, has a loss on ignition of at most 5%, contains at least 0.5% of sulfur present as non-sulfuric acid form sulfur and/or has a concentration of non-sulfuric acid form sulfur to elute, of at least 100 mg/l, and further, preferably, has a degree of vitrification of at most 30%, a melilite lattice constant a of from 7.73 to 7.82 and/or a Blaine specific surface area of at least 4,000 cm<2>/g. | ||||||
| 70 | Cement admixture, a cement composition, and a neutral-suppressing method using the | JP2003521164 | 2002-08-20 | JP4267446B2 | 2009-05-27 | 康宏 中島; 寛之 大橋; 隆行 樋口; 実 盛岡 |
| 71 | Fired product, cement additive, and cement composition | JP2007140799 | 2007-05-28 | JP2008290926A | 2008-12-04 | HONMA KENICHI; KUROKAWA DAISUKE; UCHIDA MASATAKA |
| <P>PROBLEM TO BE SOLVED: To provide a fired product capable of producing a cement additive which reduces the heat of hydration of cement and has good flowability and strength developability, a cement additive obtained by pulverizing the fired product, and a cement composition obtained by adding the cement additive. <P>SOLUTION: The fired product comprises 2CaO-SiO<SB>2</SB>and 2CaO-Al<SB>2</SB>O<SB>3</SB>-SiO<SB>2</SB>as essential ingredients and comprises 0.1-4.0 mass% of TiO<SB>2</SB>, wherein 10-100 pts.mass of 2CaO-Al<SB>2</SB>O<SB>3</SB>-SiO<SB>2</SB>+4CaO-Al<SB>2</SB>O<SB>3</SB>-Fe<SB>2</SB>O<SB>3</SB>are contained based on 100 pts.mass of 2CaO-SiO<SB>2</SB>. The cement additive is obtained by pulverizing the fired product. The cement composition comprises cement and 50 mass% or less of the cement additive. <P>COPYRIGHT: (C)2009,JPO&INPIT | ||||||
| 72 | Cement admixture and cement composition | JP2007133671 | 2007-05-21 | JP2008285380A | 2008-11-27 | MORIOKA MINORU; YAGI TORU; OMORI HIROAKI |
| PROBLEM TO BE SOLVED: To provide a cement composition which can impart such an excellent effect to a concrete structure that the heat of hydration is restrained, hardly exerts a bad influence on the strength development of the concrete structure and can decrease a thermal crack remarkably when applied to massive concrete or prestressed concrete. SOLUTION: The cement admixture consists of a reaction product obtained from humic acid produced from lignite and nitric acid, light magnesia and a siliceous substance. Sandstone is used as the siliceous substance. The particle size of the reaction product is ≤600 μm. The cement composition contains cement and the cement admixture. COPYRIGHT: (C)2009,JPO&INPIT | ||||||
| 73 | セメント混和材、セメント組成物、及びそれを用いたセメントコンクリート | JP2003538089 | 2002-06-07 | JPWO2003035570A1 | 2005-04-07 | 盛岡 実; 実 盛岡; 中島 康宏; 康宏 中島; 樋口 隆行; 隆行 樋口; 高橋 光男; 光男 高橋; 山本 賢司; 賢司 山本; 坂井 悦郎; 悦郎 坂井; 大門 正機; 正機 大門 |
| 低環境負荷型で、六価クロムを低減し、スランプロスや水和発熱量が小さく、中性化されにくく、自己収縮を小さく抑えることのできるセメント混和材、セメント組成物、及びそれを用いたセメントコンクリートを提供する。メリライトを主成分とし、CO2吸収量が2%以上である、強熱減量が5%以下である、非硫酸態イオウとして存在するイオウを0.5%以上含有する、及び/又は溶出する非硫酸態イオウ濃度が100mg/l以上であり、さらに、好ましくは、ガラス化率が30%以下、メリライトの格子定数aが7.73〜7.82、及び/又はブレーン比表面積が4,000cm2/g以上である高炉徐冷スラグ粉末をセメント混和材とする。 | ||||||
| 74 | Inhibitor for heat of hydration of cement and manufacturing method of mortar and concrete using it | JP2001217760 | 2001-07-18 | JP2003034564A | 2003-02-07 | HINAKO TOSHIO; SADA HIROSHI |
| PROBLEM TO BE SOLVED: To provide an inhibitor for the heat of hydration of cement having an excellent effect to suppress the elevation of temperature with the addition of a small amount. SOLUTION: The inhibitor contains a chemically processed starch having a solubility in water at 50°C of ≤10% and that at 80°C of 20-50%. COPYRIGHT: (C)2003,JPO | ||||||
| 75 | Cement composition | JP4296495 | 1995-03-02 | JP3267091B2 | 2002-03-18 | 敏克 井上; 久嗣 吉田; 浩康 鳴瀬 |
| 76 | Method for cooling concrete | JP2000106589 | 2000-04-07 | JP2001287219A | 2001-10-16 | YOKOI KENJI |
| PROBLEM TO BE SOLVED: To provide a method for cooling concrete by which temperature of the concrete can be effectively decreased and generation of temperature cracking can be relaxed. SOLUTION: In the method for cooling the concrete, an inorganic material for generating an endothermic reaction during dissolution is mixed into the concrete and the concrete is cooled by the endothermic reaction when this inorganic material is dissolved. COPYRIGHT: (C)2001,JPO | ||||||
| 77 | Low heat cement composition | JP50751992 | 1992-04-07 | JP3178836B2 | 2001-06-25 | 和也 中津; 之典 山崎; 哲 広瀬; 孝治 後藤; 徹 檜垣; 秀紀 遠藤 |
| 78 | Suppressant for heat of hydration of cement and cement composition | JP20185898 | 1998-07-16 | JP2000034150A | 2000-02-02 | TANAKA HIDEHIRO |
| PROBLEM TO BE SOLVED: To obtain a composition having a small heat of hydration and good in developing properties of strength by including calcium fluoroaluminate, a sulfuric salt and plural organic acids. SOLUTION: This suppressant for heat of hydration contains 100 pts.wt. of calcium fluoroaluminate, 50-300 pts.wt. of a sulfuric salt and 0.2-5 pts.wt. of two or more kinds of organic acids such as citric acid, tartaric acid and gluconic acid and further a carbonic salt such as sodium carbonate in an amount of 1-10 times that of the organic acids. The cement composition is then obtained by compounding 100 pts.wt. of a cement with 5-40 pts.wt. of the suppressant for the heat of hydration. The calcium floroaluminate is preferably a powder having a mineral composition in a ratio so as to provide 3CaO.3Al2O3.CaF2 and preferably ≤88 μm particle diameter and containing ≤10 wt.% of particles of 44 μm oversize, 1-15 wt.% of particles having ≤1 μm particle size and the balance having 1-44 μm particle size. The sulfuric salt is preferably II type anhydrous gypsum, has preferably ≤88 μm particle size and contains ≤20 wt.% of particles of 44 μm oversize, 2-15 wt.% of particles having ≤1 μm particle size and the balance having 1-44 μm particle size. COPYRIGHT: (C)2000,JPO | ||||||
| 79 | Compaction for concrete additive | JP27836589 | 1989-10-27 | JP2571627B2 | 1997-01-16 | INOKAWA TAKASHI; UCHIDA KYOHIKO; INADA KAZUO; KOSAKAI NORYUKI |
| 80 | Additive for rolled concrete | JP27836589 | 1989-10-27 | JPH03141141A | 1991-06-17 | INOKAWA TAKASHI; UCHIDA KIYOHIKO; INADA KAZUO; KOSAKAI NORIYUKI |
| PURPOSE: To suppress heat generation by hydration reaction and to improve strength, containing a hydrolyzable tannin compound. CONSTITUTION: This additive for rolled concrete contains a hydrolyzable tannin compound. The hydrolyzable tannin compound used in the additive is a compound wherein a phenolic carboxylic acid is linked to a saccharide by ester bond. This compound is converted into the acid or the saccharide by hydrolysis, the substance is liable to be hydrolyzed by acidity or alkalinity and the decomposed product has extremely high hydration suppressing action on cement and can suppress heat generation of hydration. The additive is usable together with another admixture. COPYRIGHT: (C)1991,JPO&Japio | ||||||
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