JP5259094B2 - 鉄筋を有する耐中性化に優れた水和硬化体 - Google Patents
鉄筋を有する耐中性化に優れた水和硬化体 Download PDFInfo
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- JP5259094B2 JP5259094B2 JP2007028993A JP2007028993A JP5259094B2 JP 5259094 B2 JP5259094 B2 JP 5259094B2 JP 2007028993 A JP2007028993 A JP 2007028993A JP 2007028993 A JP2007028993 A JP 2007028993A JP 5259094 B2 JP5259094 B2 JP 5259094B2
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- hydrated
- alkali metal
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- 239000002893 slag Substances 0.000 claims description 72
- 238000006386 neutralization reaction Methods 0.000 claims description 49
- 230000003014 reinforcing effect Effects 0.000 claims description 45
- 238000009628 steelmaking Methods 0.000 claims description 40
- 239000000203 mixture Substances 0.000 claims description 32
- 239000010881 fly ash Substances 0.000 claims description 28
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 25
- 239000000843 powder Substances 0.000 claims description 25
- 229910000288 alkali metal carbonate Inorganic materials 0.000 claims description 23
- 150000008041 alkali metal carbonates Chemical class 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 13
- 239000000920 calcium hydroxide Substances 0.000 claims description 13
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 13
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 13
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical group [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 230000036571 hydration Effects 0.000 claims description 8
- 238000006703 hydration reaction Methods 0.000 claims description 8
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 8
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 239000004567 concrete Substances 0.000 description 48
- 239000002994 raw material Substances 0.000 description 27
- 238000012360 testing method Methods 0.000 description 21
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 20
- 239000011398 Portland cement Substances 0.000 description 16
- 238000005260 corrosion Methods 0.000 description 16
- 230000007797 corrosion Effects 0.000 description 16
- 238000002156 mixing Methods 0.000 description 15
- 238000001723 curing Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 239000001569 carbon dioxide Substances 0.000 description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 description 10
- 239000004568 cement Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 239000003513 alkali Substances 0.000 description 6
- 239000011400 blast furnace cement Substances 0.000 description 6
- 239000011150 reinforced concrete Substances 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- 238000009472 formulation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 230000035515 penetration Effects 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 238000013329 compounding Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- BWKOZPVPARTQIV-UHFFFAOYSA-N azanium;hydron;2-hydroxypropane-1,2,3-tricarboxylate Chemical compound [NH4+].OC(=O)CC(O)(C(O)=O)CC([O-])=O BWKOZPVPARTQIV-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/08—Slag cements
- C04B28/082—Steelmaking slags; Converter slags
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/22—Carbonation resistance
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/26—Corrosion of reinforcement resistance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
Claims (5)
- 鉄筋を内部に有する、高炉スラグ微粉末及び製鋼スラグと、更に、アルカリ金属の水酸化物、アルカリ金属の炭酸塩のうちの何れか1種または2種と、消石灰と、を水と混合し、得られた混合物を硬化した水和硬化体であって、
前記高炉スラグ微粉末の配合量が水和硬化体1m3当たり100kg以上であり、前記アルカリ金属の水酸化物の含有量と前記アルカリ金属の炭酸塩の含有量との合計値が水和硬化体1m3当たり5モル以上100モル以下であり、前記消石灰の配合量が水和硬化物に生成する消石灰量が2.0重量%以下になる配合量を除く配合量であることを特徴とする、鉄筋を有する耐中性化に優れた水和硬化体。 - 前記製鋼スラグのCaO/SiO2が質量比で1.5以上または前記製鋼スラグのCaO濃度が25質量%であり、前記製鋼スラグの配合量が水和硬化体1m3当たり1780kg以上であることを特徴とする、請求項1に記載の鉄筋を有する耐中性化に優れた水和硬化体。
- 前記アルカリ金属の水酸化物が水酸化ナトリウムまたは/及び水酸化カリウムであることを特徴とする、請求項1または請求項2に記載の鉄筋を有する耐中性化に優れた水和硬化体。
- 前記アルカリ金属の炭酸塩が炭酸ナトリウムまたは/及び炭酸カリウムであることを特徴とする、請求項1ないし請求項3の何れか1つに記載の鉄筋を有する耐中性化に優れた水和硬化体。
- 前記水和硬化体が、更にフライアッシュを含有することを特徴とする、請求項1ないし請求項4の何れか1つに記載の鉄筋を有する耐中性化に優れた水和硬化体。
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JP2007028993A JP5259094B6 (ja) | 2007-02-08 | 2007-02-08 | 鉄筋を有する耐中性化に優れた水和硬化体 |
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JP2007028993A JP5259094B6 (ja) | 2007-02-08 | 2007-02-08 | 鉄筋を有する耐中性化に優れた水和硬化体 |
Publications (3)
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JP2008195544A JP2008195544A (ja) | 2008-08-28 |
JP5259094B2 true JP5259094B2 (ja) | 2013-08-07 |
JP5259094B6 JP5259094B6 (ja) | 2019-07-24 |
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JP2007028993A Active JP5259094B6 (ja) | 2007-02-08 | 2007-02-08 | 鉄筋を有する耐中性化に優れた水和硬化体 |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5931317B2 (ja) * | 2009-02-17 | 2016-06-08 | 株式会社デイ・シイ | 水硬性組成物および該水硬性組成物を用いたコンクリート |
JP5743650B2 (ja) * | 2011-03-31 | 2015-07-01 | 大成建設株式会社 | スラグ硬化組成物の生成方法 |
JP5892696B2 (ja) * | 2012-03-29 | 2016-03-23 | 株式会社竹中工務店 | 高炉セメントを用いたコンクリート組成物及びコンクリート硬化体 |
JP6065720B2 (ja) * | 2013-04-08 | 2017-01-25 | Jfeスチール株式会社 | 水和固化体の製造方法 |
NL2012959B1 (nl) * | 2014-06-06 | 2016-06-27 | Ascem B V | Cementsamenstelling, en werkwijze voor het vervaardigen daarvan. |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS58161957A (ja) * | 1982-03-17 | 1983-09-26 | 電気化学工業株式会社 | 鉄筋コンクリ−トの製法 |
JP3714043B2 (ja) * | 1998-10-14 | 2005-11-09 | Jfeスチール株式会社 | 製鋼スラグの塊成方法 |
JP3687444B2 (ja) * | 1999-10-15 | 2005-08-24 | Jfeスチール株式会社 | 製鋼スラグ硬化体の製造方法 |
JP4558281B2 (ja) * | 2003-03-28 | 2010-10-06 | 新日本製鐵株式会社 | 固化体製造方法 |
JP2005145747A (ja) * | 2003-11-14 | 2005-06-09 | Chugoku Electric Power Co Inc:The | 硬化体の硬化促進剤、硬化体の硬化促進方法、及び硬化体の製造方法 |
JP2006273691A (ja) * | 2005-03-30 | 2006-10-12 | Jfe Steel Kk | 耐塩害性に優れた鉄筋を有する水和硬化体 |
JP4882259B2 (ja) * | 2005-03-30 | 2012-02-22 | Jfeスチール株式会社 | 耐塩害性に優れた鉄筋を有する水和硬化体 |
JP2006273689A (ja) * | 2005-03-30 | 2006-10-12 | Jfe Steel Kk | 耐塩害性に優れた鉄筋を有する水和硬化体 |
JP4882257B2 (ja) * | 2005-03-30 | 2012-02-22 | Jfeスチール株式会社 | 耐塩害性に優れた鉄筋を有する水和硬化体 |
JP4882258B2 (ja) * | 2005-03-30 | 2012-02-22 | Jfeスチール株式会社 | 耐塩害性に優れた鉄筋を有する水和硬化体 |
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