JPS63103847A - Set retarder for alumina cement - Google Patents
Set retarder for alumina cementInfo
- Publication number
- JPS63103847A JPS63103847A JP24848786A JP24848786A JPS63103847A JP S63103847 A JPS63103847 A JP S63103847A JP 24848786 A JP24848786 A JP 24848786A JP 24848786 A JP24848786 A JP 24848786A JP S63103847 A JPS63103847 A JP S63103847A
- Authority
- JP
- Japan
- Prior art keywords
- alumina cement
- weight
- retarder
- mineral powder
- curing
- 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
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims description 17
- 239000004568 cement Substances 0.000 title claims description 15
- 239000000843 powder Substances 0.000 claims description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 11
- 239000011707 mineral Substances 0.000 claims description 11
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 12
- 235000010755 mineral Nutrition 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 239000000292 calcium oxide Substances 0.000 description 6
- 235000012255 calcium oxide Nutrition 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000004567 concrete Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- NIDNOXCRFUCAKQ-UMRXKNAASA-N (1s,2r,3s,4r)-bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1[C@H]2C=C[C@@H]1[C@H](C(=O)O)[C@@H]2C(O)=O NIDNOXCRFUCAKQ-UMRXKNAASA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011381 foam concrete Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/0093—Aluminates
-
- 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)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、アルミナセメントの硬化遅延剤に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a set retarder for alumina cement.
本発明によるアルミナセメントの硬化遅延剤を使用した
アルミナセメント配合物は耐火物、止水剤及び気泡コン
クリート等のコンクリートニ久袈品に広く利用できる。Alumina cement formulations using the alumina cement hardening retardant according to the present invention can be widely used in concrete products such as refractories, water sealants, and aerated concrete.
従来からアルミナセメントの遅延剤としてＩＪン酸、カ
ルビン酸、リグニンスルホン酸及びそれらＯ塩類等のｑ
４剤が使用されてい之が、少量添加で十分な遅延効果が
得られる反呵少量添加の為、セメントへの均一な分散が
難しく部分的な効果しか得られない欠点があった。Conventionally, IJ acid, carbic acid, lignin sulfonic acid, and their O salts have been used as retarders for alumina cement.
Although four agents are used, a sufficient retardation effect can be obtained by adding only a small amount, but since they are added in small amounts, it is difficult to uniformly disperse them into the cement, resulting in only a partial effect.
又、予め遅延剤を添加しであるアルミナセメントに更に
遅延剤を添加する場合遅延剤の組み合せによっては促進
作用を有したり遅延効果が強すぎる等の問題が発生し効
果の制御が非常に雉しかった。In addition, when a retarder is added to alumina cement that has already been added with a retarder, problems may arise, such as the combination of retarders having an accelerating effect or too strong a retarding effect, making it very difficult to control the effect. It was true.
本発明者らは上記問題点を解消すべく、種々検討を加え
た結果、アルミナセメントに特定のＣａＯ含有鉱物粉末
からなる硬化遅延剤を添加することによって硬化遅延剤
のアルミナセメントへの分散が良く、又、遅延調釡が容
易になり、更１ｃ薬剤から成る遅延剤を添加してもその
効果が十分に発揮できるという知見を得て本発明を完成
するに到り九〇
〔問題点？解決するための手段〕
即ち、本発明は、ＣａＯ・Ａｌ２Ｏ３と２ Ｃａ０Ａ１
２０３’５１０２を主成分として含有し、しかもそのう
ち無定形分が５０重量％以上であるＣａＯ含有鉱物粉末
カラなることを特徴とするアルミナセメントの硬化遅延
剤である。In order to solve the above problems, the present inventors conducted various studies and found that by adding a hardening retarder made of a specific CaO-containing mineral powder to alumina cement, the hardening retarder can be better dispersed in alumina cement. In addition, the present invention was completed based on the knowledge that the delay adjustment becomes easy and that the effect can be fully exhibited even if a retarder made of 1C drug is added. Means for Solving] That is, the present invention solves the problem of CaO.Al2O3 and 2Ca0A1
This is a hardening retarder for alumina cement, which is characterized by being a dry mineral powder containing CaO, which contains 203'5102 as a main component, and in which the amorphous content is 50% by weight or more.
以下本発明の内容と詳しく説明する。The contents of the present invention will be explained in detail below.
本発明で使用するＣａＯ含有鉱物粉末（以下鉱物粉末と
いう）は、ざ−キサイトやバイヤーアルミル
ナ等のアルミナ源と生石灰や石灰石等Ｏカル４ア源及び
シャモットや珪石等のシリカ源を使用し、焼成法及び／
又は、電融法によって合成し之クリンカーを島チューブ
ミル、振動ミル、ジェットミル及びローラーミル等Ｏ粉
砕機で粉砕したものである。The CaO-containing mineral powder (hereinafter referred to as mineral powder) used in the present invention uses an alumina source such as zaxite or Bayer alumina, an O-calcium source such as quicklime or limestone, and a silica source such as chamotte or silica stone. Firing method and/or
Alternatively, the clinker synthesized by the electrofusion method is pulverized using an O-pulverizer such as an island tube mill, vibration mill, jet mill, or roller mill.
この場合クリンカーは、Ｃａ０４１４０３（以下ＣＡと
いう）と２ＣａＯ’ａＡｌ２Ｏ３・５ｉ０２（以下Ｃ２
ＡＳという）を所定量含有する様に一度に合成しても良
く、又各々に合成したものを混合しても良論。In this case, the clinkers are Ca041403 (hereinafter referred to as CA) and 2CaO'aAl2O3.5i02 (hereinafter referred to as C2
It is also possible to synthesize the substances (referred to as AS) at the same time so as to contain a predetermined amount of them, or it is also a good idea to mix the substances synthesized separately.
次に鉱物粉末中ＯＣＡとＣ２ＡＳｃｌ含有割合にＣＡ４
０〜９０貞ｔ％、０２Ａ８６０〜１０Ｘ１％が好ましく
、ＣＡ３０〜８０．１ｔ％、ＣａＡＳ ５０〜２０重量
％がエフ好ましい。ＣＡが４０重量％未満では、添加後
のアルミナセメント（以下ＡＣという〕の強度低下が大
きい為好ましくない。又、？ＯＸ通％？越えると硬化遅
延効果に乏しく好ましくない。Next, CA4 is added to the content ratio of OCA and C2AScl in the mineral powder.
0 to 90% by weight, 02A860 to 10X1% are preferable, and 30 to 80.1t% CA and 50 to 20% by weight CaAS are preferable. If CA is less than 40% by weight, the strength of the alumina cement (hereinafter referred to as AC) after addition will be greatly reduced, which is undesirable.If it exceeds ?OX%?, the curing retardation effect will be poor and undesirable.
更に、ＣｚＡＳがＩＣｌｔｌ％未１ｉｆ４ ”Ｔ： ！
ｄ 、硬化遅延効果て乏しく、６０重祉％を越えると硬
化遅延効果が強すぎる為、好ましくない。Furthermore, CzAS is ICltl% not 1if4 ”T: !
d) The curing retardation effect is poor, and if the weight exceeds 60%, the curing retardation effect is too strong, which is not preferable.
鉱物粉末中のＣＡ及びＣ２ＡＳの９は、鉱物粉末１００
重量部中６ＤｊＪＬ量％以上が好ましり、８ＯＮ量％以
上がよジ好ましい。9 of CA and C2AS in mineral powder is 100 of mineral powder
The amount of DjJL in parts by weight is preferably 6% or more, and the amount of 8ON or more is even more preferable.
鉱物粉末中の無定形分は、５ＯＮ量清％以上が好ましく
８０重量％以上がより好ましい。無定形０判［Ｆｌ：、
粉末Ｘ線回折法にエフ回折線の萌出により行うことが出
来る。即ち、ＣＡ及びＣ２ＡＳとなる原料配合を用匹製
造したもＯの結晶形のピーク高さから、予め作成した既
知の割合のピーク高さの検量線を用いて決定するもので
、無定形の割合はべ式による。The amorphous content in the mineral powder is preferably at least 5ON% by weight, and more preferably at least 80% by weight. Amorphous 0 size [Fl:,
It can be performed by powder X-ray diffraction method by eruption of F diffraction lines. That is, it is determined from the peak height of the crystalline form of O obtained by preparing raw material compositions for CA and C2AS using a calibration curve of peak heights of known ratios prepared in advance, and the ratio of amorphous Based on Habe style.
無定形の割合％＝１００−（ピーク面積／全面積）Ｘ１
００鉱物粉末中の無定形分を５０重ｔ％以上とする方法
に待に限定されるものでにないが、一般に溶融及び／又
に焼成によって裏道したクリンカー２水及び／又は空気
等【接触させ急冷する方法が用いられる。急冷の仕方が
強いと無定形分は多くなる。Amorphous percentage % = 100 - (peak area / total area) x 1
00 The method is not limited to the method of increasing the amorphous content in the mineral powder to 50% by weight or more, but in general, clinker 2 that has been mixed with water and/or air etc. by melting and/or calcination is used. A rapid cooling method is used. If the rapid cooling method is strong, the amorphous content will increase.
無定形が５０重量％より少な＾と硬化遅延効果妃
が純化する為好ましくない。又、鉱物粉末の比表直積に
プレーン匝で５． ＯＯＯａｎ”／ ｇ以上が好ましく
５，０００ ｃｒｎ２／ ｇ以上がより好ましい。３
，０００ａｔ？ ／ ！ Ｌ Ｔ）小さいと粒子が粗＾
為、水和活性が低下し著しく硬化遅延する為好ましくな
い。If the amorphous content is less than 50% by weight, the curing retardation effect will become more concentrated, which is undesirable. In addition, 5. OOOan”/g or more is preferable, and 5,000 crn2/g or more is more preferable.3
,000at? /! L T) If it is small, the particles are coarse ^
This is not preferable because the hydration activity decreases and curing is significantly delayed.
さらに本発明による遅延剤はリン酸、カルざン酸、リグ
ニンスルホン酸及び／又はそれらの塩類から成る遅延剤
と併用することもできる。Furthermore, the retarder according to the invention can also be used in combination with retarders consisting of phosphoric acid, carboxylic acid, ligninsulfonic acid and/or their salts.
本発明による硬化遅延剤をアルミナセメントへ分散させ
るにはナウタミキサー、ヘンシェルミキサー等Ｑ混合機
により粉体として混合してもよ藝し水と混錬後スラリー
として添加しても良い。In order to disperse the hardening retarder according to the present invention into alumina cement, it may be mixed as a powder using a Q mixer such as a Nauta mixer or a Henschel mixer, or it may be added as a slurry after kneading with water.
本発明のアルミナセメントに対する添Ｄｏｔｈ内割で５
０重ｔ％以下が好ましく、５０１量％以下訳゛
びより好ましい。５ＯＮ量％？越えると強度低下が著し
く低下する為好ましくない。The additive Doth for the alumina cement of the present invention is 5
It is preferably 0% by weight or less, more preferably 501% by weight or less. 5ON amount%? Exceeding this is not preferable because the strength decreases significantly.
次に本発明を実ｗＡ例及び比較例で説明する。 Next, the present invention will be explained using actual wA examples and comparative examples.
実ｍ例
第１表に示す鉱物粉末を硬化遅延剤”として、第２表に
示すＡＣに第５表に示すように添加し、これにＪｒｓｕ
２５２１記載の標準砂を加えたモルタルを作成し之。硬
化時間及び養生強度の測定結果を第５表に併記する。同
、硬化時間の測定な、次の方法で行い、その他Ｈ，ｙｘ
ｓＲ２５２１に準じた。Practical Example The mineral powder shown in Table 1 was added as a curing retarder to the AC shown in Table 2 as shown in Table 5, and Jrsu was added to it as shown in Table 5.
A mortar was prepared by adding the standard sand described in No. 2521. The measurement results of curing time and curing strength are also listed in Table 5. Measurement of curing time is carried out by the following method, and other H, yx
According to sR2521.
硬化時間：注水し混線９直後からのモルタルの内部発熱
を温度記録計にて測定記録
し、注水から発熱温度のピークまで
に要した時間とした◎尚、測定雰囲
気は２０℃−８０％Ｒ，Ｈとした。Curing time: The internal heat generation of the mortar immediately after pouring water was measured and recorded using a temperature recorder, and the time required from pouring water to the peak of the heat generation temperature was taken as the time required. The measurement atmosphere was 20°C - 80% R, It was set as H.
ｆｉｆ？−キサイド、生石灰及びシャモットから電融法
にエフクリンカーを合、成し、バッチ式ボールミルによ
り粉砕を行った。fif? Ef-clinker was synthesized from -oxide, quicklime and chamotte by electrofusion method, and pulverized using a batch type ball mill.
第 １ 表
第 ２ 表
〔発明の効果〕
本発明による硬化遅延剤は、従来の各種薬剤から成る遅
延剤に比べてその作用が緩慢で遅延効果■調整が各偶で
あり、しかも添加量が多い為ＡＣ’への均一な分散も可
能である。Table 1 Table 2 [Effects of the Invention] The curing retardant according to the present invention has a slower action than conventional retardants made of various chemicals, has a retarding effect, can be adjusted individually, and requires a large amount of addition. Therefore, uniform dispersion into AC' is also possible.
又薬剤から成る遅延剤と併用しても遅延効果を消失する
ことなく十分な遅延効果を発揮する。Furthermore, even when used in combination with a retardant consisting of a drug, the retardation effect does not disappear and a sufficient retardation effect is exerted.
本発明の硬化遅延剤を使用したアルミナセメント配合物
は、耐火物、上水剤及び気泡コンクＩＪ−ト等のコンク
リート二欠裂品にも広く利用ができる。Alumina cement formulations using the hardening retarder of the present invention can be widely used for refractories, water refills, and concrete bi-fracture products such as cellular concrete IJ-crate.
Claims (1)
＿３・ＳｉＯ＿２を主成分として含有し、しかもそのう
ち無定形分が５０重量％以上であるＣａＯ含有鉱物粉末
からなることを特徴とするアルミナセメントの硬化遅延
剤。(1) CaO・Al_2O_3 and 2CaO・Al_2O
A hardening retarder for alumina cement, characterized by comprising a CaO-containing mineral powder containing _3.SiO_2 as a main component, of which the amorphous content is 50% by weight or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24848786A JPS63103847A (en) | 1986-10-21 | 1986-10-21 | Set retarder for alumina cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24848786A JPS63103847A (en) | 1986-10-21 | 1986-10-21 | Set retarder for alumina cement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63103847A true JPS63103847A (en) | 1988-05-09 |
| JPH0262505B2 JPH0262505B2 (en) | 1990-12-25 |
Family
ID=17178891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24848786A Granted JPS63103847A (en) | 1986-10-21 | 1986-10-21 | Set retarder for alumina cement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63103847A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5631298A (en) * | 1979-08-22 | 1981-03-30 | Pioneer Electronic Corp | Vibration system unit for acoustic device |
-
1986
- 1986-10-21 JP JP24848786A patent/JPS63103847A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5631298A (en) * | 1979-08-22 | 1981-03-30 | Pioneer Electronic Corp | Vibration system unit for acoustic device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0262505B2 (en) | 1990-12-25 |
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