JPH03247542A - Hydraulic composition - Google Patents
Hydraulic compositionInfo
- Publication number
- JPH03247542A JPH03247542A JP3965890A JP3965890A JPH03247542A JP H03247542 A JPH03247542 A JP H03247542A JP 3965890 A JP3965890 A JP 3965890A JP 3965890 A JP3965890 A JP 3965890A JP H03247542 A JPH03247542 A JP H03247542A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- pts
- weight
- calcium
- adsorbent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims description 20
- 239000004568 cement Substances 0.000 claims abstract description 32
- -1 calcium aluminates Chemical class 0.000 claims abstract description 18
- 239000003463 adsorbent Substances 0.000 claims abstract description 14
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 14
- 239000011575 calcium Substances 0.000 claims abstract description 14
- 229910052920 inorganic sulfate Inorganic materials 0.000 claims description 7
- 238000004040 coloring Methods 0.000 abstract description 8
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 abstract description 6
- 229910001570 bauxite Inorganic materials 0.000 abstract description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 150000004645 aluminates Chemical class 0.000 abstract 1
- 229940095564 anhydrous calcium sulfate Drugs 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 239000011398 Portland cement Substances 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- 239000003610 charcoal Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000003446 ligand Substances 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000003456 ion exchange resin Substances 0.000 description 2
- 229920003303 ion-exchange polymer Polymers 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 238000004647 photon scanning tunneling microscopy Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- 241000554155 Andes Species 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 239000007798 antifreeze agent Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- ILWNTWRKKKGJCG-UHFFFAOYSA-L calcium;sulfate;trihydrate Chemical compound O.O.O.[Ca+2].[O-]S([O-])(=O)=O ILWNTWRKKKGJCG-UHFFFAOYSA-L 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229940104869 fluorosilicate Drugs 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 239000002663 humin Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000000449 magic angle spinning nuclear magnetic resonance spectrum Methods 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- WHOPEPSOPUIRQQ-UHFFFAOYSA-N oxoaluminum Chemical compound O1[Al]O[Al]1 WHOPEPSOPUIRQQ-UHFFFAOYSA-N 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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
- C04B28/06—Aluminous cements
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)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、主として土木・建築分野において使用される
水硬性組成物、セメント混和材及びセメント組成物に関
する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a hydraulic composition, a cement admixture, and a cement composition used mainly in the civil engineering and construction fields.
［従来の技術とその課題］
現在、土木・建築分野において、緊急補修工事用、止水
用あるいは工期短縮用等に急結剤が広く使用されており
、急結剤は、ＪＩＳ Ａ ０２０３に１セメントの水和
反応を早め凝結時間を著しく短くするために用いる混和
剤」と定義されている。[Prior art and its problems] Currently, quick-setting agents are widely used in the civil engineering and construction fields for emergency repair work, water stopping, shortening construction period, etc. Quick-setting agents are specified in JIS A 0203 1 It is defined as an admixture used to accelerate the hydration reaction of cement and significantly shorten the setting time.
急結剤としては、ＣａＣ１，、ＡＩ （ＯＨ） ３、Ｎ
ａ２ＣＯ，、ＮａＯＨ，ＮａＡｌ０□、カルシウムアル
ミネート類、仮焼明ばん石及び水ガラス等が知られてい
る（新・コンクリート用混和材料、１９８９年７月■シ
ーエムシー発行）が、本発明はこのうちカルシウムアル
ミネート類に関するものである。As quick setting agents, CaCl, AI (OH) 3, N
a2CO, NaOH, NaAl0□, calcium aluminates, calcined alumite, water glass, etc. are known (New Admixtures for Concrete, published by CMC, July 1989). This is related to calcium aluminates.
即ち、カルシウムアルミネート類を急結剤として使用し
たモルタル又はコンクリート硬化体は、その表面が薄茶
色系統の色に着色する場合があり、美観上好ましくない
という課題があった。That is, the surface of a mortar or concrete hardened body using calcium aluminates as an quick-setting agent may be colored in a light brownish color, which is undesirable from an aesthetic point of view.
本発明者らは、急結剤としてのカルシウムアルミネート
に係わる前記技術上の課題を解決すべく種々検討を重ね
た結果、特定の組成物が前記課題の解決のために有効で
あるとの知見を得て本発明を完成するに至った。The present inventors have conducted various studies to solve the above-mentioned technical problems related to calcium aluminate as an quick-setting agent, and have found that a specific composition is effective for solving the above-mentioned problems. As a result, the present invention was completed.
［課題を解決するための手段］
即ち、本発明は、カルシウムアルミネート類及び吸着剤
を主成分とする水硬性組成物であり、該水硬性組成物と
無機硫酸塩及び凝結遅延剤を主成分とするセメント混和
材であり、さらに、該セメント混和材とセメントを主成
分とするセメント組成物である。[Means for Solving the Problems] That is, the present invention is a hydraulic composition containing calcium aluminates and an adsorbent as main components, and a hydraulic composition containing the hydraulic composition, an inorganic sulfate, and a setting retarder as main components. The present invention is a cement admixture containing the cement admixture, and a cement composition containing the cement admixture and cement as main components.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
本発明に係るカルシウムアルミネート類（以下ＣＡ類と
いう）とは、通常、電気炉もしくはロータリーキルン等
により高温で生成するカルシウムアルミネートであり、
結晶質又は非晶質を問わず使用可能であり、これらの生
成過程での他の成分や不純物の存在も特に限定されるも
のではない。Calcium aluminates (hereinafter referred to as CAs) according to the present invention are calcium aluminates that are usually produced at high temperatures in an electric furnace, rotary kiln, etc.
It can be used regardless of whether it is crystalline or amorphous, and the presence of other components and impurities during the production process is not particularly limited.
結晶質のカルシウムアルミネート類としては、ＣａＯを
Ｃ，Ａｌ２Ｏ２をＡとすると、ＣＡ、 Ｃ５Ａ３、Ｃ，
□Ａ、及びＣ３Ａ等と示されるもの、また、ＦｅｚＯ３
をＦ、 Ｃａ５Ｏ，をＣＳ及びＸをハロゲンとすると、
ＣやＡ以外の他の成分が結晶中に存在する、Ｃ３Ａ３Ｃ
ａＸｚ、Ｃ３Ａ３ＣａＸｚ、Ｃ，ＡＰ及びＣ３Ａ３ＣＳ
等と示されるものが挙げられる。As for crystalline calcium aluminates, if CaO is C and Al2O2 is A, then CA, C5A3, C,
□ Those indicated as A, C3A, etc., and FezO3
When is F, Ca5O, is CS, and X is halogen,
C3A3C where other components other than C and A are present in the crystal
aXz, C3A3CaXz, C, AP and C3A3CS
etc. are listed.
非晶質の代表的カルシウムアルミネート類としては、組
成的には結晶質と同一のものが挙げられるが、象、冷に
より非晶質化したものであり、Ｘ線的にはそのままでは
特定できない。Typical amorphous calcium aluminates include those that are compositionally the same as crystalline calcium aluminates, but they have become amorphous due to cooling and cannot be identified directly using X-rays. .
反応性の面からは、結晶質より非晶質が好ましく、また
、組成の面からは、カルシウムアルミネート中のＣａＯ
の含有量が３０〜６０重量％のものが好ましく、３８〜
５２重量％のものがより好ましい。本発明では、以上の
ようなＣＡ類の一種又は二種以上が使用可能である。From the point of view of reactivity, amorphous is preferable to crystalline, and from the point of view of composition, CaO in calcium aluminate is preferable to crystalline.
The content of is preferably 30 to 60% by weight, and 38 to 60% by weight.
More preferably, the content is 52% by weight. In the present invention, one or more of the above CAs can be used.
本発明に係る吸着剤としては、フラースアース、ボーキ
サイト、酸処理白土、骨炭、脱色用炭、水処理炭、金属
吸着炭、気体吸着炭、シリカゲル、アルミナ、ゼオライ
ト、イオン交換樹脂などのイオン交換物質、ベントナイ
ト、マグネシア及びフミンサンド等固体状の吸着剤が挙
げられる。Adsorbents according to the present invention include ion exchange materials such as fuller's earth, bauxite, acid-treated clay, bone char, decolorizing charcoal, water-treated charcoal, metal-adsorbing charcoal, gas-adsorbing charcoal, silica gel, alumina, zeolite, and ion-exchange resins. , bentonite, magnesia, and humin sand.
また、炭素系の吸着剤として、コークス類も経済的かつ
効果的であり、ＣＡ類製造時にＣａＯやＡｌｚ０３など
の配合原料に添加し加熱、溶融することも可能である。Cokes are also economical and effective as carbon-based adsorbents, and can be added to blended raw materials such as CaO and AlzO3 and heated and melted during the production of CAs.
吸着剤の使用量は、ＣＡ類１００重量部に対して、１〜
３０重量部が好ましく、１０〜２０重量部がより好まし
い。１重量部未満では着色防止効果が十分でな（，３０
重量部を越えると経済性の点で好ましくない１頃向があ
る。The amount of adsorbent used is 1 to 100 parts by weight of CAs.
30 parts by weight is preferred, and 10 to 20 parts by weight is more preferred. If it is less than 1 part by weight, the coloring prevention effect is insufficient (,30
If it exceeds 1 part by weight, it may be unfavorable from an economic point of view.
本発明に係る無機硫酸塩とは、アルカリ金属又はアルカ
リ土類金属の硫酸塩であり、例えば、無水、半水並びに
三水の硫酸カルシウムが好ましいものとして挙げられ、
その中でも■型無水セッコウのような、難溶性又は不溶
性のものがより好ましいものとして挙げられる。The inorganic sulfate according to the present invention is an alkali metal or alkaline earth metal sulfate, and preferable examples thereof include anhydrous, hemihydrate, and trihydrate calcium sulfate.
Among these, those that are hardly soluble or insoluble, such as type 1 anhydrous gypsum, are more preferred.
無機硫酸塩の使用量は、ＣＡ類と吸着剤を主成分とする
水硬性組成物１００重量部に対して、５０〜５００重量
部が好ましく、１００〜３００重量部が特に好ましい。The amount of inorganic sulfate used is preferably 50 to 500 parts by weight, particularly preferably 100 to 300 parts by weight, based on 100 parts by weight of the hydraulic composition containing CAs and an adsorbent as main components.
５０重量部未満では、強度発現が十分でなく、５００重
量部を越えると寸法安定性が悪くなる恐れがある。If it is less than 50 parts by weight, strength development may not be sufficient, and if it exceeds 500 parts by weight, dimensional stability may deteriorate.
本発明に係る凝結遅延剤とは、セメントの水和反応を調
節して、モルタルやコンクリートの凝結時間や初期水和
速度を遅延させる混和剤である。The setting retarder according to the present invention is an admixture that regulates the hydration reaction of cement and delays the setting time and initial hydration rate of mortar and concrete.
具体的には、クエン酸、酒石酸、グルコン酸、コハク酸
及びマレイン酸等の有機酸又はそれらの塩類、炭酸アル
カリ、リン酸類又はそれらの塩類、ホウ酸、ホウ酸アル
カリ、ケイフッ化物、でん粉、糖及びアルコール類等や
それらの混和物が挙げられ、中でも有機酸の使用が好ま
しい。Specifically, organic acids such as citric acid, tartaric acid, gluconic acid, succinic acid, and maleic acid or their salts, alkali carbonates, phosphoric acids or their salts, boric acid, alkali borate, fluorosilicate, starch, and sugar. and alcohols, and mixtures thereof, among which organic acids are preferably used.
凝結遅延剤の使用量は、水硬性組成物１００重量部に対
して、０．１〜３０重量部程度が好ましい。この範囲外
では適当なオープンタイム（作業時間）を得ることがで
きにくい。The amount of the setting retarder used is preferably about 0.1 to 30 parts by weight based on 100 parts by weight of the hydraulic composition. Outside this range, it is difficult to obtain adequate open time (work time).
本発明に係るセメントとしては、普通・早強・超早強等
の各種ポルトランドセメントや、ポルトランドセメント
に高炉スラグ、フライアッシュ又はシリカを混合した各
種混合セメント、あるいはポルトランドセメントに膨張
材を配合した膨張セメントやアルミナセメントなどの特
殊セメント等が挙げられる。The cement according to the present invention includes various types of Portland cement such as normal, early strength, and super early strength, various mixed cements made by mixing Portland cement with blast furnace slag, fly ash, or silica, and expanded cements made by mixing Portland cement with an expanding agent. Examples include special cements such as cement and alumina cement.
セメントの使用量は、ＣＡ類、吸着剤、無機硫酸塩及び
凝結遅延剤を主成分とするセメント混和材１００重量部
に対して、２００〜５，０００重量部が好ましい。２０
０重量部未満では経済的に好ましくな（，５，０００重
量部を超えると、急硬性能の発現が不十分となる傾向が
ある。The amount of cement used is preferably 200 to 5,000 parts by weight based on 100 parts by weight of the cement admixture whose main components are CAs, adsorbents, inorganic sulfates, and setting retarders. 20
If it is less than 0 parts by weight, it is economically unfavorable. If it exceeds 5,000 parts by weight, the rapid hardening performance tends to be insufficient.
さらに、本発明においては、けい砂、天然砂及び砂利等
の骨材、ガラス繊維、カーボン繊維及び鋼繊維等の繊維
質物質、高分子ポリマーエマルジョンやラテックス、Ａ
Ｅ剤、減水側、ＡＥ減水剤、流動化剤、防錆剤、メチル
セルロースなどの水中不分離性混和剤、増粘剤、保水剤
、けい酸ソーダなどの防水剤、発泡剤、起泡剤、防凍剤
及び水酸化カルシウムなどのアルカリ性物質等のうちの
一種又は二種以上を、本発明の目的を実質的に阻害しな
い限り併用することが可能である。Furthermore, in the present invention, aggregates such as silica sand, natural sand and gravel, fibrous substances such as glass fibers, carbon fibers and steel fibers, polymer emulsions and latex, A
E agent, water reducing agent, AE water reducing agent, fluidizing agent, rust preventive agent, inseparable admixture in water such as methyl cellulose, thickener, water retention agent, waterproofing agent such as sodium silicate, foaming agent, foaming agent, One or more of antifreeze agents and alkaline substances such as calcium hydroxide can be used in combination as long as they do not substantially impede the object of the present invention.
水硬性組成物、セメント混和材あるいはセメント組成物
の混合には、既存の撹拌装置が使用可能であり、例えば
、傾胴ミキサー、オムニミキサー■型ミキサー ヘンシ
ェルミキサー及びナウターミキサ−等の使用が可能であ
る。Existing stirring devices can be used to mix the hydraulic composition, cement admixture, or cement composition; for example, a tilting mixer, an omnimixer, a Henschel mixer, a Nauta mixer, etc. can be used. .
また、混合は、各々の材料を施工時に混合してもよいし
、予め一部もしくは全部を混合しておいても差し支えな
い。In addition, each material may be mixed at the time of construction, or some or all of the materials may be mixed in advance.
水硬性組成物、セメント混和材あるいはセメント組成物
の使用方法は、特に制限されるものではなく、従来のモ
ルタル又はコンクリートの施工に準拠して使用すること
が可能である。The method of using the hydraulic composition, cement admixture, or cement composition is not particularly limited, and can be used in accordance with conventional mortar or concrete construction.
本発明の作用効果に関しては、必ずしも十分に解明され
たわけではないが、次のように考えることができる。即
ち、工業原料中には多くの種類の不純物が混入している
。例えば、ＳｉＯ□、Ｆｅ２Ｏ３、ＴｉＯ□及びＭｇＯ
等が挙げられ、このうち、特に、Ｆｅ”やＦｅ”の鉄イ
オンは種々の配位子と錯体を形成し、発色する。本発明
では、吸着剤を併用することにより、前記鉄イオンや配
位子を吸着剤に吸着させ、錯体形成に関与する実質的な
前記鉄イオンや配位子の濃度を低下させ、発色を防止す
るものと考えられる。Although the effects of the present invention have not necessarily been fully elucidated, they can be considered as follows. That is, many types of impurities are mixed into industrial raw materials. For example, SiO□, Fe2O3, TiO□ and MgO
Among these, iron ions such as "Fe" and "Fe" form complexes with various ligands and develop colors. In the present invention, by using an adsorbent in combination, the iron ions and ligands are adsorbed to the adsorbent, thereby reducing the substantial concentration of the iron ions and ligands involved in complex formation, and preventing color development. It is considered that
第１図は、比較例（実験Ｎｏ、１−１）で作製したサン
プルの着色部分をＩ３Ｃ固体高分解能ＮＭＲで測定した
結果である。また、第２図は炭酸カルシウムのＰＳＴＭ
ＡＳスペクトル、第３図はパックグランドのＰＳＴＭ八
Ｓスへクトルである。FIG. 1 shows the results of measuring the colored portion of the sample prepared in the comparative example (experiment No. 1-1) by I3C solid-state high-resolution NMR. Also, Figure 2 shows the PSTM of calcium carbonate.
The AS spectrum, Figure 3, is the PSTM 8S spectrum of the pack ground.
第１〜３図より、次のことが明らかである。From FIGS. 1 to 3, the following is clear.
（１）３０ｐｐｍ付近と５０ｐｐｍ付近のピークから、
特殊なカルボニル炭素を持つ化合物が存在する。(1) From the peaks around 30 ppm and around 50 ppm,
There are compounds with special carbonyl carbons.
（２）２４０ｐｐｍのピークにより、；ｃ＝ｏ−−：
Ｆｅ５０゜の構造が存在する。(2) Due to the peak at 240 ppm; c=o--:
A structure of Fe50° exists.
［実施例］ 以下、本発明を実施例によって詳しく説明する。[Example] Hereinafter, the present invention will be explained in detail with reference to Examples.
実施例１
下記の材料を使用し、Ｗ／Ｃ＝ ５０％として、表−１
に示す配合のペーストを作製し、５Ｘ１５Ｘ０．５１の
プラスチック製型枠に充填して、硬化体を作製し、２０
℃、６５％ＲＨの条件で２８日間養生した。Example 1 Using the following materials and setting W/C = 50%, Table-1
A paste with the composition shown in was prepared and filled into a 5 x 15 x 0.51 plastic mold to make a cured body.
It was cured for 28 days at a temperature of 65% RH.
次にこの硬化体を、スガ試験機社製ｒＷＥ −５ＵＮ−
ＩＫサンシャインウェーザーメーター」で、６０°Ｃ１
■サイクル、シャワー１０分／６０分の条件で１ 、０
００時間処理して、表面の着色の度合いを観察した。結
果を表−１に併記する。Next, this cured body was treated with rWE-5UN- manufactured by Suga Test Instruments Co., Ltd.
60°C1 with IK Sunshine Weather Meter
■Cycle, 1, 0 under shower conditions of 10 minutes/60 minutes
After 00 hours of treatment, the degree of surface coloring was observed. The results are also listed in Table-1.
（使用材料）
セメント ：アンデスセメント社製普通ポルトランドセ
メント
ＣＡ類 ：ＣａＯ含有量４６重量％のカルシウムアル
ミネート、非晶質、ブレーン６．０００ｃｄ７ｇ無機硫
酸塩：■型無水セッコウ、ブレーン５，９００ｃ＋ｆｌ
／ｇ凝結遅延剤ニゲルコン酸ナトリウム、試薬吸着剤−
ａ：活性炭粉末、ツルミコール社製−ｂ＝活性白土、日
本活性白土社製
Ｃニジリカゲル、富士デヴイソン化学社製〜ｄ：ゼオラ
イト、日本活性白土社製
−ｅ：ベントナイト、日本タルク社製
−ｆ：陽イオン交換樹脂、ダウケミカル社製商品名「ダ
ウエックス５０−Ｘ８１
−ｇ：コークス、住人金属社製
また、超速硬セメントとして、Ｃ１＋ＡｔＣａＦｚ、硫
酸カルシウム及びカルシウムシリケート含有の小野田セ
メント社製ジェットセメントとシェフ）センターを使用
した場合を、表−１に併記した。(Materials used) Cement: Ordinary Portland cement manufactured by Andes Cement CA type: Calcium aluminate with CaO content of 46% by weight, amorphous, Blaine 6.000cd7g Inorganic sulfate: ■-type anhydrous gypsum, Blaine 5,900c+fl
/g Set retardant sodium nigerconate, reagent adsorbent -
a: Activated carbon powder, manufactured by Tsurumicol Co., Ltd. - b = Activated clay, manufactured by Nippon Shakushirakuto Co., Ltd. C Nijilica gel, manufactured by Fuji Davison Chemical Co., Ltd. - d: Zeolite, manufactured by Nippon Shakushirakuto Co., Ltd. - e: Bentonite, manufactured by Nippon Talc Co., Ltd. - f: Positive Ion exchange resin, manufactured by Dow Chemical Company, product name: "DOWEX 50-X81 -g: Coke, manufactured by Sumitomo Metal Co., Ltd. Also, as an ultra-fast hardening cement, jet cement manufactured by Onoda Cement Co., Ltd. containing C1+AtCaFz, calcium sulfate and calcium silicate and Chef) The case where the center was used is also listed in Table 1.
表
■
各材料は重量部、◎は着色無し、○はほとんど着色なし
、×は着色有り、である。Table ■ Each material is in parts by weight, ◎ means no coloring, ○ almost no coloring, × means coloring.
「発明の効果］
本発明により、硬化後の表面に着色・変色のない水硬性
組成物が得られる。"Effects of the Invention" According to the present invention, a hydraulic composition without coloring or discoloration on the surface after curing can be obtained.
第１図は、比較例（実験Ｎｏ、 １−１ ）で作製した
サンプルの着色部分を１３０固体高分解能ＮＭＲで測定
した結果である。また、第２図は炭酸カルシウムのＰＳ
ＴＭＡＳスペクトル、第３図はバックグランドのＰＳＴ
ＭＡＳスペクトルである。
特
許
出
願
人
電気化学工業株式会社FIG. 1 shows the results of measuring the colored portion of the sample prepared in Comparative Example (Experiment No. 1-1) using 130 solid-state high-resolution NMR. Also, Figure 2 shows the PS of calcium carbonate.
TMAS spectrum, Figure 3 is background PST
This is a MAS spectrum. Patent applicant Denki Kagaku Kogyo Co., Ltd.
Claims (3)
る水硬性組成物。(1) A hydraulic composition whose main components are calcium aluminates and an adsorbent.
及び凝結遅延剤を主成分とするセメント混和材。(2) A cement admixture whose main components are calcium aluminates, adsorbents, inorganic sulfates, and setting retarders.
、無機硫酸塩及び凝結遅延剤を主成分とするセメント組
成物。(3) A cement composition containing cement, calcium aluminates, adsorbents, inorganic sulfates, and setting retarders as main components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3965890A JP2928310B2 (en) | 1990-02-22 | 1990-02-22 | Cement admixture and cement composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3965890A JP2928310B2 (en) | 1990-02-22 | 1990-02-22 | Cement admixture and cement composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03247542A true JPH03247542A (en) | 1991-11-05 |
| JP2928310B2 JP2928310B2 (en) | 1999-08-03 |
Family
ID=12559188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3965890A Expired - Fee Related JP2928310B2 (en) | 1990-02-22 | 1990-02-22 | Cement admixture and cement composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2928310B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006512272A (en) * | 2002-12-27 | 2006-04-13 | ラファージ アリュミネイト | Liquid setting accelerators for compositions containing Portland cement |
| WO2008104539A1 (en) * | 2007-02-27 | 2008-09-04 | Kerneos | Stain free hydraulic binder, mortar and concrete |
| JP2010132495A (en) * | 2008-12-04 | 2010-06-17 | Taiheiyo Materials Corp | Quick-hardening composition and method for producing the same |
| JP2013227210A (en) * | 2012-03-30 | 2013-11-07 | Mitsubishi Materials Corp | Cross-section repair material for repairing salt damage |
-
1990
- 1990-02-22 JP JP3965890A patent/JP2928310B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006512272A (en) * | 2002-12-27 | 2006-04-13 | ラファージ アリュミネイト | Liquid setting accelerators for compositions containing Portland cement |
| WO2008104539A1 (en) * | 2007-02-27 | 2008-09-04 | Kerneos | Stain free hydraulic binder, mortar and concrete |
| JP2010132495A (en) * | 2008-12-04 | 2010-06-17 | Taiheiyo Materials Corp | Quick-hardening composition and method for producing the same |
| JP2013227210A (en) * | 2012-03-30 | 2013-11-07 | Mitsubishi Materials Corp | Cross-section repair material for repairing salt damage |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2928310B2 (en) | 1999-08-03 |
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