JPH0375249A - Cement hardening accelerator - Google Patents
Cement hardening acceleratorInfo
- Publication number
- JPH0375249A JPH0375249A JP1206684A JP20668489A JPH0375249A JP H0375249 A JPH0375249 A JP H0375249A JP 1206684 A JP1206684 A JP 1206684A JP 20668489 A JP20668489 A JP 20668489A JP H0375249 A JPH0375249 A JP H0375249A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- cement
- pts
- calcium
- 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
- 239000004568 cement Substances 0.000 title claims abstract description 37
- 239000011575 calcium Substances 0.000 claims abstract description 19
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 19
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 17
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 5
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 5
- 239000010440 gypsum Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 18
- 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
- 235000011126 aluminium potassium sulphate Nutrition 0.000 abstract description 5
- 239000000292 calcium oxide Substances 0.000 abstract description 4
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 abstract description 4
- 229910052736 halogen Inorganic materials 0.000 abstract description 3
- 150000002367 halogens Chemical class 0.000 abstract description 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 8
- 239000004570 mortar (masonry) Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- -1 Calcium aluminates Chemical class 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229940050271 potassium alum Drugs 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000011398 Portland cement Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 235000008429 bread Nutrition 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 235000012255 calcium oxide Nutrition 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- WZUKKIPWIPZMAS-UHFFFAOYSA-K Ammonium alum Chemical compound [NH4+].O.O.O.O.O.O.O.O.O.O.O.O.[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O WZUKKIPWIPZMAS-UHFFFAOYSA-K 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 235000011124 aluminium ammonium sulphate Nutrition 0.000 description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- 241000554155 Andes Species 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
- 241000196324 Embryophyta Species 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 241000519995 Stachys sylvatica Species 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
- 238000002441 X-ray diffraction Methods 0.000 description 1
- WKNIDMJWLWUOMZ-UHFFFAOYSA-N [K].[Cr] Chemical compound [K].[Cr] WKNIDMJWLWUOMZ-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001354 calcination Methods 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
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003869 coulometry Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
Landscapes
- 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、セメント急硬材、特に、長い作業時間を保持
するとともに、初期強度の発現に優れ、かつ、打設物の
表面に白い斑点模様が発生する、いわゆる、斑点化現象
のない、優れたセメント急硬材に関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention is a rapidly hardening cement material, in particular, which retains a long working time, exhibits excellent initial strength, and has no white spots on the surface of the cast object. This invention relates to an excellent cement hardening material that is free from the so-called spotting phenomenon in which patterns occur.
〈従来の技術とその課題〉
従来、カルシウムアルミネートとセラコラからなるセメ
ント急硬材をセメントに混和した急硬セメントや、カル
シウムハロアルミネートとセラコラからなる急硬材をセ
メントに添加して、急硬モルタル又はコンクリートとす
ることが知られている（特開昭５３−３７７２９号公報
、特開昭４８−８９２２２号公報等）。<Conventional technology and its problems> Conventionally, rapid hardening cement has been produced by mixing cement with a quick hardening agent consisting of calcium aluminate and Ceracola, and rapid hardening cement has been developed by adding a quick hardening agent consisting of calcium haloaluminate and Ceracola to cement. It is known to use hard mortar or concrete (JP-A-53-37729, JP-A-48-89222, etc.).
しかしながら、近年、急硬セメントを用いたコンクリー
トの打設量が多くなり、広い面積や大規模な急硬コンク
リート工事がますます増加している。However, in recent years, the amount of concrete placed using rapid-hardening cement has increased, and the number of large-scale and large-scale rapid-hardening concrete construction projects is increasing.
従来は、このような、広い面積や大規模な急硬コンクリ
ート工事には、コンクリートに多量の凝結遅延剤を添加
して、長い作業時間を確保していたが、初期強度の発現
が非常に不安定であったり、打設後、クランクが発生し
たり、斑点化現象が発生するなど多くの課題があった。Conventionally, large amounts of setting retardant were added to the concrete for rapid hardening concrete work on large areas or on a large scale to ensure a long working time, but this resulted in very poor initial strength development. There were many problems such as stability, cracking after pouring, and spotting.
本発明者は、上記課題を解決すべく、種々検討を重ねた
結果、特定の組成を用いることにより、作業時間の調整
が可能で、初期強度発現性の優れたコンクリートが得ら
れる知見を得て本発明を完或するに至った。In order to solve the above problems, the inventors of the present invention have conducted various studies and obtained the knowledge that by using a specific composition, the working time can be adjusted and concrete with excellent early strength development can be obtained. The present invention has now been completed.
く課題を解決するための手段〉
即ち、本発明は、■カルシウムハロアルミネート、［２
］カルシウムアルごネート、［３］セッコウ類及び■１
価及び／又は３価の金属の硫酸塩を主成分としてなり、
［１］と［２］の合計１００重量部に対し、［３］が５
０〜３００重量部、［４］が０．５〜２０重量部であり
、［１］対［２］の割合が３０〜９０重量％対７０〜１
０重量％であることを特徴とするセメント急硬材である
。Means for Solving the Problems〉 That is, the present invention provides: ■ Calcium haloaluminate, [2
] Calcium algonate, [3] Gypsum and ■1
The main component is a sulfate of a valent and/or trivalent metal,
[3] is 5 parts by weight for a total of 100 parts by weight of [1] and [2].
0 to 300 parts by weight, [4] is 0.5 to 20 parts by weight, and the ratio of [1] to [2] is 30 to 90 parts by weight to 70 to 1.
It is a cement rapid hardening material characterized by 0% by weight.
以下、本発明をさらに詳しく説明する。The present invention will be explained in more detail below.
本発明におけるカルシウムハロアルミネートとは、Ｃａ
ＯとＡ１．０．とハロゲンの化合物で、具体的には、Ｃ
ａＯをＣ，、ＡＩ！０３をＡとすると、ＣＪ、 Ｃ＋ｚ
Ａｔ、ＣＡ及びＣＡ２等のカルシウムアルミネートにハ
ロゲン物質が混入した、例えば、Ｃ，Ａ、ＣａＦｚやＣ
８＾ｔｃａＦｇ等を主成分とするものなどで、これらの
うちの−種又は二種以上が使用できる。Calcium haloaluminate in the present invention refers to Ca
O and A1.0. and a halogen compound, specifically, C
aO to C,, AI! If 03 is A, CJ, C+z
Calcium aluminates such as At, CA and CA2 mixed with halogen substances, such as C, A, CaFz and C
8^tcaFg etc. as a main component, and one or more of these can be used.
カルシウムハロアルミネートは、石灰質原料、アルミす
質原料及びハロゲン原料などを、生成物が所望のカルシ
ウムハロアル５ネートになるような割合で配合し、キル
ンで焼成したり、電気炉で溶融して、クリンカーとして
製造できる。Calcium haloaluminate is produced by blending calcareous raw materials, aluminum base raw materials, halogen raw materials, etc. in proportions such that the product becomes the desired calcium haloaluminate, and calcining it in a kiln or melting it in an electric furnace. , can be produced as clinker.
本発明でいうカルシウムハロアルミネートとは、クリン
カー中のＣａＯ含有量が３０〜４５重量％程度でのもの
をいい、かつ、クリンカー中の全フッ素量が２．０重量
％以上のものをいう。Calcium haloaluminate as used in the present invention refers to one in which the CaO content in the clinker is about 30 to 45% by weight, and the total fluorine content in the clinker is 2.0% by weight or more.
カルシウムハロアルミネートの粉末度はブレーン値で３
．０ＯＯｃｊ／ｇ以上が好ましく、４，０００ｃ４／ｇ
以上がより好ましい。The fineness of calcium haloaluminate is 3 in Blaine value.
．． 0OOcj/g or more is preferable, 4,000c4/g
The above is more preferable.
本発明のカルシウムアルミネートとは、ＣａＯとａｔｚ
ｏｓとの化合物で、具体的には、Ｃ３Ａ５Ｃ＋ｚＡ１、
ＣＡ及びＣＡ、等を主成分とする、非晶質又は結晶質の
鉱物が挙げられ、このうちの一種又は二種以上が使用で
きる。市販品としては、例えば、アルミナセメントなど
も使用可能である。The calcium aluminate of the present invention is composed of CaO and atz
Compounds with os, specifically C3A5C+zA1,
Examples include amorphous or crystalline minerals whose main components are CA and CA, and one or more of these can be used. As a commercially available product, for example, alumina cement can also be used.
カルシウムアルミネートのうちでも、初期強度発現が優
れていることからＣ＋ｚＡｔを主成分とするものや、Ｃ
Ａを主成分とするものが好ましい。Among calcium aluminates, those containing C+zAt as the main component and C
Those containing A as a main component are preferred.
カルシウムアルミネートの粉末度はブレーン値で３．０
００ｃＴ１／ｇ以上が好ましく 、４，０００ｃｉｉ／
ｇ以上がより好ましい。The fineness of calcium aluminate is 3.0 in Blaine value.
00cT1/g or more is preferable, 4,000cii/
g or more is more preferable.
カルシウムアルミネートは、石灰質原料とアルミす質原
料などを、生成物が所望のカルシウムアルミネートにな
るような割合で配合し、キルンで焼成したり、電気炉で
溶融して、クリンカーとして製造できる。Calcium aluminate can be produced as clinker by blending a calcareous raw material and an aluminum base raw material in such a ratio that the product becomes the desired calcium aluminate, and then firing it in a kiln or melting it in an electric furnace.
また、電気炉で溶融した溶融体を圧縮空気などで吹き飛
ばすなど、急冷することにより非晶質のカルシウムアル
ミネートが得られる。In addition, amorphous calcium aluminate can be obtained by rapidly cooling the molten material melted in an electric furnace by blowing it away with compressed air or the like.
カルシウムアルミネートは強度発現の面から、非晶質の
ものの使用が好ましい。From the viewpoint of strength development, it is preferable to use an amorphous calcium aluminate.
カルシウムアルミネートの使用量は、カルシウムハロア
ルミネート３０〜９０重量％に対し、７０〜１０重景％
であ−６，１０重量％未満では、初期強度の発現が悪く
なり、７０重量％を越えると、作業時間が短縮され使い
づらくなる。The amount of calcium aluminate used is 70 to 10% by weight compared to 30 to 90% by weight of calcium haloaluminate.
If it is less than -6.10% by weight, the initial strength will be poor, and if it exceeds 70% by weight, the working time will be shortened and it will be difficult to use.
本発明におけるセラコラ類としては、無水、半水及び三
水の各種セラコラの一種又は二種以上の使用が可能であ
る。As the Ceracola in the present invention, it is possible to use one or more of anhydrous, semi-hydrous and trihydrous Ceracola.
このうち、■型の無水セラコラが強度発現の面から最も
好ましい。Among these, type 1 anhydrous Ceracola is the most preferred from the viewpoint of strength development.
■型の無水セラコラとは、Ｘ線回折パターンで■型−Ｃ
ａＳＯ，の形態を示すものであり、工業的に含まれる不
純物には制約されない。The X-ray diffraction pattern of ■type anhydrous Ceracola is ■type-C.
aSO, and is not limited to industrially contained impurities.
セラコラ類の粉末度は、ブレーン値４．０ＯＯｄ／ｇ以
上が好ましく 、５，０００ｃＩｉ／ｇ以上が、高強度
を発現する面からより好ましい。The powder degree of Ceracola is preferably 4.0 OOd/g or more in Blaine value, and more preferably 5,000 cIi/g or more in terms of developing high strength.
セラコラ類の使用量は、カルシウムハロアルミネートと
カルシウムアルミネートの合計１００重量部に対し、５
０〜３００重量部であり、８０〜１５０重量部が好まし
い。５０重量部未満では、強度発現の面で好ましくなく
、作業時間が確保できず、３００重量部を越えると膨張
性を示し、クラックが発生したり、強度が低下する傾向
がある。The amount of Ceracola used is 5 parts by weight per 100 parts by weight of calcium haloaluminate and calcium aluminate.
It is 0 to 300 parts by weight, preferably 80 to 150 parts by weight. If it is less than 50 parts by weight, it is unfavorable in terms of strength development and working time cannot be ensured, and if it exceeds 300 parts by weight, it exhibits expansivity and tends to cause cracks and reduce strength.
本発明における１価及び／又は３価の金属の硫酸塩（以
下硫酸塩類という）とは、金属の原子価が１又は３価で
ある金属硫酸塩で、特に、作業時間をのばした場合の初
期強度の上昇及び安定化に有効であり、打設後、硬化し
たモルタルやコンクリートの斑点化現象を防止する効果
があるものである。In the present invention, the sulfates of monovalent and/or trivalent metals (hereinafter referred to as sulfates) are metal sulfates in which the valence of the metal is monovalent or trivalent. It is effective in increasing and stabilizing the initial strength, and is effective in preventing the phenomenon of spotting of hardened mortar and concrete after pouring.
本発明の硫酸塩類としては、Ｒ１５ｏ、・Ｒ’ｚ（ＳＯ
４）ｓ・２４Ｈ！Ｏと示される各種ミョウバン類（Ｒ：
に、Ｎａ、ＮＨｓ、Ｃｓ及びＲｈ等の１価の金属、Ｒ’
：Ａ１．Ｃｒ、Ｆｅ、Ｃｅ、Ｉｎ、Ｖ、Ｃｏ、Ｔｉ及び
Ｍｎ等の３価の金属）やＮａｚＳＯａ、ＫｚＳＯａ、Ａ
ｌｚ（Ｓ０４）ｓ、（ＮＨａ）ｚｓ０４、ＦａＳＯ４４
ＨｇＯ及びＦｅｗ（ＳＯ４） ｓ等が挙られる。具体的
にはカリ′、＝１ウバン、焼きミョウバン、アンモニウ
ムミョウバン及びクロムカリミョウバン等が使用可能で
ある。The sulfates of the present invention include R15o, .R'z(SO
4) s・24H! Various alums denoted as O (R:
, monovalent metals such as Na, NHs, Cs and Rh, R'
:A1. Trivalent metals such as Cr, Fe, Ce, In, V, Co, Ti and Mn), NazSOa, KzSOa, A
lz(S04)s, (NHa)zs04, FaSO44
Examples include HgO and Few(SO4)s. Specifically, potash',=1 alum, roasted alum, ammonium alum, chromium potassium alum, etc. can be used.
硫酸塩類の使用量は、その種類により異なり、いちがい
に決定できないが、カルシウムハロアルミネートとカル
シウムアルごネートの合計１００重量部に対し、０．５
〜２０重量部であり、１〜１０重量部が好ましい。０．
５重量部未満では短期強度が発現しにくく、斑点化現象
が防止できない傾向があり、２０重量部を越えると、作
業時間がとれなかったり、長期の耐久性が低下する傾向
がある。The amount of sulfates to be used varies depending on the type and cannot be determined individually, but it is 0.5 parts by weight for a total of 100 parts by weight of calcium haloaluminate and calcium algonate.
~20 parts by weight, preferably 1 to 10 parts by weight. 0.
If it is less than 5 parts by weight, it is difficult to develop short-term strength and the phenomenon of spotting cannot be prevented. If it exceeds 20 parts by weight, there is a tendency that working time is not available or long-term durability is reduced.
硫酸塩類の使用量は、焼ξヨウパンでは、１重量部より
効果があり、硫酸ナトリウムや硫酸アルミニュウムなど
は５重量部より効果がある、特に、カリξヨウパンやア
ンモニウムミョウバン２〜５重量部が最も好ましい、。Regarding the amount of sulfates used, for baked ξ bread, 1 part by weight is more effective, and sodium sulfate and aluminum sulfate are more effective than 5 parts by weight.In particular, 2 to 5 parts by weight of potassium ξ bread and ammonium alum are the most effective. preferable,.
本発明で使用するセメントとは、普通・早強・超早強・
中庸熱等の各種ポルトランドセメントや、これらポルト
ランドセメントに高炉スラグ等のシリカ分を混合した各
種混合セメント及び白色セメント等である。The cement used in the present invention is normal, early strength, super early strength,
These include various types of Portland cement such as moderate heat, various mixed cements made by mixing these Portland cements with silica such as blast furnace slag, and white cement.
本発明のセメント急硬材を使用するにあたって、凝結遅
延剤などを併用することは好ましい。When using the cement rapid hardening material of the present invention, it is preferable to use a setting retarder or the like together.
凝結遅延剤としては、クエン酸・酒石酸・グルコン酸・
リンゴ酸等のオキシカルボン酸又はその塩や水酸化カル
シウム・酸化カルシウム・アルご゛ン酸ナトリウム・炭
酸ナトリウム・炭酸カリウム等の無機塩の一種又は二種
以上が使用できる。Set retardants include citric acid, tartaric acid, gluconic acid,
One or more of oxycarboxylic acids such as malic acid or salts thereof, and inorganic salts such as calcium hydroxide, calcium oxide, sodium alginate, sodium carbonate, and potassium carbonate can be used.
凝結遅延剤の使用量はその目的に応じ適宜決定すれば良
く、特に制限されるものではないが、通常、カルシウム
ハロアルミネート、カルシウムアルミネート、セラコラ
類、硫酸塩類及びセメントの合計１００重量部に対して
、０．１〜２重量部が好ましい。０．１重量部未満では
凝結が早く、２重量部を越えると強度発現が悪くなる傾
向がある。The amount of setting retarder to be used may be determined as appropriate depending on the purpose and is not particularly limited, but it is usually a total of 100 parts by weight of calcium haloaluminate, calcium aluminate, ceracola, sulfates and cement. On the other hand, 0.1 to 2 parts by weight is preferable. If it is less than 0.1 part by weight, it tends to set quickly, and if it exceeds 2 parts by weight, the strength development tends to be poor.
本発明のセメント急硬材の粉末度は、ブレーン値で３，
０ＯＯｃｄ／ｇもあれば十分であるが、４．０００ｃｄ
／ｇ以上が好ましい。The fineness of the cement rapid hardening material of the present invention is 3 in Blaine value.
0OOcd/g is sufficient, but 4.000cd
/g or more is preferable.
また、本発明のセメント急硬材の使用量は、使用目的に
より各々異なり、特に制限されるものではないが、セメ
ン）１００重量部に対し、１５〜３０重量部が好ましい
。Further, the amount of the cement rapid hardening material used in the present invention varies depending on the purpose of use and is not particularly limited, but is preferably 15 to 30 parts by weight per 100 parts by weight of cement.
各材料の混合方法は、特に制限されるものではなく、一
般に用いられる方法で良い。例えば、打設現場や生コン
プラントでセメントと別々に添加しても良いし、工場等
でセメントに混合しプレごックスタイプとすることも可
能である。The method of mixing each material is not particularly limited, and any commonly used method may be used. For example, it can be added separately to cement at the pouring site or in a ready-mixed concrete plant, or it can be mixed with cement at a factory to create a premix type.
〈実施例〉 以下、実施例を挙げ、本発明をさらに詳しく説明する。<Example> Hereinafter, the present invention will be explained in more detail with reference to Examples.
実施例！
第１表に示す化学組成を有するＣｚＡ、ＣａＦ、、Ｃ１
□Ａ７及びＣＡ−ＣａＦｚを主成分とし、第２表に示す
ように配合したタリンカーに、さらに、セッコウ１５０
重量部とカリミョウバン５重量部を混合してセメント急
硬材とした０次に、セメント７３重量部、該セメント急
硬材２５重量部、凝結遅延剤２重量部、砂１５０重量部
及び水３６重量部を添加してモルタルを作成した。Example! CzA, CaF, C1 having the chemical composition shown in Table 1
□Talinkar containing A7 and CA-CaFz as main components and blended as shown in Table 2, and gypsum 150
Part by weight and 5 parts by weight of potassium alum were mixed to make a cement rapid hardening material. Next, 73 parts by weight of cement, 25 parts by weight of the cement rapid hardening material, 2 parts by weight of setting retarder, 150 parts by weight of sand, and 36 parts by weight of water. A mortar was prepared by adding parts by weight.
モルタルの練り混ぜはＡＳＴＭ Ｃ３０５に準じ、ホバ
ート型モルタルξキサーを使用し、注水後４分間攪拌し
た。The mortar was mixed in accordance with ASTM C305 using a Hobart type mortar mixer, and stirred for 4 minutes after pouring water.
モルタルの２０″Ｃでの硬化時間と所定材令の圧縮強度
を測定した。その結果を第２表に併記する。The curing time of the mortar at 20''C and the compressive strength of a given material age were measured.The results are also listed in Table 2.
〈使用材料〉
セラコラ ：新秋田化威■製、■型無水セッコウ、ブレ
ーン値（ハシティー０．５０）６．４００ｃｄ／ｇ硫酸
塩類−ａ：カリミョウバン、和光純薬工業社製、試薬１
級
セメント ：アンデスセメント共同事業社製、普通ポル
トランドセメント
凝結遅延剤：電気化学工業■製商晶名「デンカＥＳセッ
ターＪ主酸分オキシカルボン酸
砂 ：豊浦標準砂
第
２
表
硬化時間の単位は（分）であり、圧縮強度の単位は（ｋ
ｇ ｆ ／ ｃ４ ）である。<Materials used> Ceracola: manufactured by Shin Akita Kaei ■, type ■ anhydrous gypsum, Blaine value (Hacity 0.50) 6.400 cd/g sulfates-a: potassium alum, manufactured by Wako Pure Chemical Industries, Ltd., reagent 1
Grade cement: Ordinary Portland cement, manufactured by Andes Cement Joint Venture Co., Ltd. Set retardant: Manufactured by Denki Kagaku Kogyo ■ Commercial name: Denka ES Setter J Main acid content: Oxycarboxylic acid sand: Toyoura standard sand No. 2 The hardening time unit is ( ), and the unit of compressive strength is (k
g f / c4).
実施例２
実施例１実験Ｎα１−３のタリンカーを用い、これに、
カリミョウバン５重量部添加し、セラコラの使用量を第
３表のように変化させたこと以外は実施例１と同様に行
った。結果を第３表に併記する。Example 2 Using Talincar of Example 1 Experiment Nα1-3,
The same procedure as in Example 1 was conducted except that 5 parts by weight of potassium alum was added and the amount of Ceracola used was varied as shown in Table 3. The results are also listed in Table 3.
第 表 ２と同様に行った。結果を表−４に併記する。No. table It was done in the same way as 2. The results are also listed in Table-4.
〈使用材料〉
硫酸塩類−ｂ：焼きξヨウパン、和光純薬工業社製、試
薬１級
〃 −ｃ：硫酸ナトリウム、 〃 〃〃 −ｄ
：硫酸アルミニュウム、〃 〃〃 −ｅ：硫酸第２
鉄、 〃 〃セラコラ量はカルシウムハロア
ルミネートとカルシウムアルミネートの合計１００重量
部に対する電量部であり、硬化時間の単位は（分）、圧
縮強度の単位は（ｋｇｆ／ｃｊ）である。<Materials used> Sulfates -b: Baked ξ bread, manufactured by Wako Pure Chemical Industries, Ltd., reagent grade 1 -c: Sodium sulfate, -d
: Aluminum sulfate, 〃 〃〃 -e: Second sulfuric acid
The amount of iron and Ceracola is the coulometric part based on the total of 100 parts by weight of calcium haloaluminate and calcium aluminate, the unit of curing time is (minute), and the unit of compressive strength is (kgf/cj).
また、実験に２−６は２４時間でクラックが発生した。In addition, in the experiment No. 2-6, cracks occurred within 24 hours.
実施例３
実験に２−３の配合を用い、硫酸塩の種類と使用量を表
−４に示すように変えたこと以外は実施例第
４
表
実施例４
実ＭＮα３−４の配合を用いてセメント急硬材を調合し
た。このセメント急硬材をセメント１００重量部に対し
、表−５に示すように添加したこと以外は、実施例３と
同様に行った。結果を表−５に併記する。Example 3 The formulation of 2-3 was used in the experiment, except that the type and amount of sulfate used were changed as shown in Table 4. Table 4 Example 4 Using the formulation of actual MNα3-4 Mixed cement and quick hardening material. The same procedure as in Example 3 was conducted except that this cement rapid hardening material was added to 100 parts by weight of cement as shown in Table 5. The results are also listed in Table-5.
第５表
硬化時間の単位は（分）、圧縮強度の単位は（ｋｇｆ／
ｃｊ）セメント急硬材は、セメント１００重量部に対す
る重量部であり、硬化時間の単位は（分）、圧縮強度の
単位は（ｋｇｆ／ｃｄ）である。Table 5: The unit of curing time is (minutes), and the unit of compressive strength is (kgf/
cj) The cement hardening material is expressed in parts by weight based on 100 parts by weight of cement, the unit of hardening time is (minutes), and the unit of compressive strength is (kgf/cd).
〈発明の効果〉
本発明のセメント急硬材を使用することによって、通常
より、はるかに長い作業時間をとっても硬化性状が安定
して得られ、かつ、高い初期強度発現が得られる。また
、従来のセメント急硬材を使用したときに見られる斑点
化現象がないなどの効果を奏するものである。<Effects of the Invention> By using the cement rapid hardening material of the present invention, stable hardening properties can be obtained even if it takes a much longer working time than usual, and high initial strength development can be obtained. In addition, it has the advantage that there is no spotting phenomenon that is observed when conventional cement hardening materials are used.
従って、長い作業時間が必要な大量施工や、大面積の施
工でも、打ち継ぎすることもなく、打設できるものであ
る。Therefore, even in large-volume construction that requires a long working time or construction over a large area, it can be poured without having to repeat pouring.
本発明のセメン１．硬材は、一般の土木・建築工事やコ
ンクリート二次製品などに広く使用することができる。Cement of the present invention 1. Hardwood can be widely used in general civil engineering and construction work, secondary concrete products, etc.
Claims (1)
ルシウムアルミネート、［３］セッコウ類及び［４］１
価及び／又は３価の金属の硫酸塩を主成分としてなり、
［１］と［２］の合計１００重量部に対し、［３］が５
０〜３００重量部、［４］が０．５〜２０重量部であり
、［１］対［２］の割合が３０〜９０重量％対７０〜１
０重量％であることを特徴とするセメント急硬材。(1), [1] Calcium haloaluminate, [2] Calcium aluminate, [3] Gypsum and [4] 1
The main component is a sulfate of a valent and/or trivalent metal,
[3] is 5 parts by weight for a total of 100 parts by weight of [1] and [2].
0 to 300 parts by weight, [4] is 0.5 to 20 parts by weight, and the ratio of [1] to [2] is 30 to 90 parts by weight to 70 to 1.
A cement rapid hardening material characterized by having a content of 0% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1206684A JPH0813696B2 (en) | 1989-08-11 | 1989-08-11 | Cement hardwood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1206684A JPH0813696B2 (en) | 1989-08-11 | 1989-08-11 | Cement hardwood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0375249A true JPH0375249A (en) | 1991-03-29 |
| JPH0813696B2 JPH0813696B2 (en) | 1996-02-14 |
Family
ID=16527401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1206684A Expired - Fee Related JPH0813696B2 (en) | 1989-08-11 | 1989-08-11 | Cement hardwood |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0813696B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0807613A1 (en) * | 1996-05-13 | 1997-11-19 | Denki Kagaku Kogyo Kabushiki Kaisha | Accelerating agent, spraying material and spraying method employing it |
| JP2007232971A (en) * | 2006-02-28 | 2007-09-13 | Daikan:Kk | Light emitting display device |
| JP2007255180A (en) * | 2006-02-23 | 2007-10-04 | Yuka Sansho Kenzai Kk | Composite for unevenness adjustment, unevenness adjusting member, and construction method of floor structure using unevenness adjusting member |
| JP2009042420A (en) * | 2007-08-08 | 2009-02-26 | Toyoda Gosei Co Ltd | Display device |
| JP2009229757A (en) * | 2008-03-21 | 2009-10-08 | Leds Craft Co Ltd | Open type led channel character |
| JP2021160989A (en) * | 2020-03-31 | 2021-10-11 | 三菱マテリアル株式会社 | Quick-hardening mortar composition |
| WO2022097495A1 (en) * | 2020-11-09 | 2022-05-12 | デンカ株式会社 | Fast-setting mixed material and spraying material |
-
1989
- 1989-08-11 JP JP1206684A patent/JPH0813696B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0807613A1 (en) * | 1996-05-13 | 1997-11-19 | Denki Kagaku Kogyo Kabushiki Kaisha | Accelerating agent, spraying material and spraying method employing it |
| JP2007255180A (en) * | 2006-02-23 | 2007-10-04 | Yuka Sansho Kenzai Kk | Composite for unevenness adjustment, unevenness adjusting member, and construction method of floor structure using unevenness adjusting member |
| JP2007232971A (en) * | 2006-02-28 | 2007-09-13 | Daikan:Kk | Light emitting display device |
| JP2009042420A (en) * | 2007-08-08 | 2009-02-26 | Toyoda Gosei Co Ltd | Display device |
| JP2009229757A (en) * | 2008-03-21 | 2009-10-08 | Leds Craft Co Ltd | Open type led channel character |
| JP2021160989A (en) * | 2020-03-31 | 2021-10-11 | 三菱マテリアル株式会社 | Quick-hardening mortar composition |
| WO2022097495A1 (en) * | 2020-11-09 | 2022-05-12 | デンカ株式会社 | Fast-setting mixed material and spraying material |
| JP2022076297A (en) * | 2020-11-09 | 2022-05-19 | デンカ株式会社 | Quick setting admixture, and spraying material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0813696B2 (en) | 1996-02-14 |
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