JP2771917B2 - Method for improving properties of cement moldings - Google Patents
Method for improving properties of cement moldingsInfo
- Publication number
- JP2771917B2 JP2771917B2 JP3339049A JP33904991A JP2771917B2 JP 2771917 B2 JP2771917 B2 JP 2771917B2 JP 3339049 A JP3339049 A JP 3339049A JP 33904991 A JP33904991 A JP 33904991A JP 2771917 B2 JP2771917 B2 JP 2771917B2
- Authority
- JP
- Japan
- Prior art keywords
- cement
- moldings
- humic acid
- molded product
- adhesion
- 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.)
- Expired - Fee Related
Links
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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
-
- 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
- C04B2111/21—Efflorescence resistance
Description
【０００１】[0001]
【産業上の利用分野】この発明は、セメント成形物の特
性改善方法に関するものである。さらに詳しくは、この
発明は、セメント成形物の組織、特性の均質化を図りつ
つ、エフロ（白華）を防止し、さらには離型性および塗
膜密着性を向上させ、養生時のブロッキングの発生を防
止することのできる、新しいセメント成形物の特性改善
方法に関するものである。BACKGROUND OF THE INVENTION This invention, especially of cement molded product
It relates to the method of improving the performance. More specifically, the present invention aims to homogenize the structure and properties of a cement molded product.
One, to prevent efflorescence (efflorescence), further improves the releasing property and coating film tight adhesion, anti-occurrence of blocking during curing
Improve the properties of new cement moldings that can be stopped
It is about the method .
【０００２】[0002]
【従来の技術】従来より、建築用外装材、天井材、屋根
材等としてセメントスラリーやモルタルセメントから抄
造および成形したセメント成形物が使用されてきてお
り、その耐水性、耐久性等の改善のために、セメント成
形用の組成物にはロックウール、スラグ等の充填材や硬
化促進剤、消泡剤、凝集剤、分散剤等の様々な添加剤や
配合材が添加されてきてもいる。2. Description of the Related Art Conventionally, cement moldings formed and formed from cement slurry or mortar cement have been used as exterior materials for buildings, ceiling materials, roofing materials, etc., and their water resistance and durability have been improved. for, there cell locks the composition for instruments shaped wool, fillers and curing accelerators such as slag, defoamers, flocculants, also various additives and blending materials such as dispersant have been added .
【０００３】また、通常、このセメント成形物について
は、プレスや注型用の型を使用して成形することから、
離型油等の離型剤を添加したり、また、セメント成形物
の二次養生時に発生するエフロ（白華）を抑制すると同
時に、表面塗装との密着性を高めるために、表面にはエ
マルジョン系塗料等を塗布してもいた。[0003] Usually, this cement molded product is molded using a press or casting mold.
Or adding a release agent of the release oil, etc., and, at the same time suppressing efflorescence (efflorescence) generated during a secondary curing of the cement moldings, in order to enhance the adhesion between the surface coating, the surface emulsion System paint etc. was applied.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
セメント成形物については、前記の通りの各種の添加剤
や配合材を使用してはいるが、セメントスラリー等の混
練工程において同時添加した場合、添加剤、配合材相互
の作用によりお互いの効力を低下させてしまうことがあ
り、多数の添加剤や配合材を同時使用することは好まし
いことではなかった。[SUMMARY OF THE INVENTION However, if for traditional cement moldings and uses various additives and blending materials of the street of the but were simultaneously added in the kneading step, such as cement slurry In some cases, the mutual effects of the additives and the compounding materials are reduced by the interaction between the additives and the compounding materials, and it is not preferable to use a large number of additives and the compounding materials at the same time.
【０００５】また、セメント成形物の養生硬化時に発生
するエフロ（白華）を抑制するために使用している各種
のエマルジョン系塗料も、その希釈比やエマルジョンそ
のものの特性によってエフロ抑制効果にも差異が生じ、
また、塗布後のセメント成形物をエマルジョン系塗料の
半硬化の状態で密着積載して養生すると、エマルジョン
系塗料の存在によってブロッキング等が発生するという
問題もあった。[0005] Further, various types of emulsion paints used for suppressing the efflorescence (white flower) generated during curing and hardening of a cement molded product also differ in the effluent suppression effect depending on the dilution ratio and the characteristics of the emulsion itself. Occurs,
Further, when the cement moldings after coating is cured in intimate contact load in the state of semi-cured emulsion paints, et Marujon
There is also a problem that blocking or the like occurs due to the presence of the system paint.
【０００６】このため、セメント成形物の特性の向上
は、多数の添加剤、配合材を使用するために自ずと制約
され、また、エマルジョン系塗料の使用は、その操作、
成形物の養生等において面倒であるとともに、塗膜その
ものの剥離が避けられないという欠点があった。この発
明は、以上の通りの事情に鑑みてなされたものであり、
セメント成形物の特性向上を、多種の添加物、配合材等
を使用することなく、また、エマルジョン系塗料を使用
せずに実現し、セメント成形物の組織、特性の均質化を
図りつつ、エフロを防止し、さらには離型性および塗膜
密着性を向上させ、養生時のブロッキングの発生を防止
することのできる、新しいセメント成形物の特性改善方
法を提供することを目的としている。[0006] For this reason, cement molded product of the characteristics of the direction above
A number of additives, the self not a and constraints for the use of blended materials
In addition, the use of emulsion paints
Troublesome der Rutotomoni in curing such a molding, it has a drawback that peeling of the coating film itself can not be avoided. The present invention has been made in view of the above circumstances ,
The characteristic improvement of cement moldings, additives wide, without the use of blended materials or the like, also realized without the use of emulsion-based paint, tissue cement moldings, the homogenization properties
Aims while, preventing efflorescence, more releasability and coating
To improve the tight adhesion, prevent the occurrence of blocking at the time of curing
To improve the properties of new cement moldings
It is intended to provide law .
【０００７】[0007]
【課題を解決するための手段】この発明は、上記の課題
を解決するものとして、セメント組成成分にフミン酸塩
を添加配合し、混練することにより、セメント成形物の
離型性および塗膜密着性を向上させ、養生時に発生しや
すいブロッキングを防止することを特徴とするセメント
成形物の特性改善方法を提供する。この発明では、フミ
ン酸塩の添加量は、セメント成形組成物の配合等によ
り、また、使用目的をも考慮して適宜に選択することが
できる。一般的には、0.1 〜20.0重量％（固形分）であ
る。添加量が0.1 重量％以下では、添加の効果は期待で
きない。20.0重量％を超えると硬化阻害を起こしやすく
なる。このフミン酸塩は、固形物もしくは溶液として添
加配合される。 Means for Solving the Problems The present invention solves the above-mentioned problems by adding and mixing a humate to a cement composition component and kneading the mixture to form a cement molded product.
Improves release properties and coating film adhesion,
Provided is a method for improving characteristics of a cement molded product , which is characterized by preventing pan blocking . In this invention, the amount of off Mi <br/> phosphate salt, by blending such cement molding compositions, also can be the intended use properly selected in view. Generally, 0.1 to 20.0% by weight (solid content)
You. If the amount is less than 0.1% by weight, the effect of the addition cannot be expected . When it exceeds 20.0% by weight tends to cause a hardening inhibiting <br/> ing. This humate is added as a solid or solution.
It is added.
【０００８】この発明では、セメント組成成分にフミン
酸塩を添加配合するため、従来のように数多くの添加剤
等を使用することなく、また、エマルジョン系塗料を使
用することなく、セメント成形物としての所要の特性を
実現し、組織と特性の均質化、エフロの防止、さらには
離型性および塗膜密着性の向上を図り、養生時のブロッ
キングの発生を防止することができる。[0008] In this invention, for adding blended humic acid salt to the cement composition components, without using a large number of additives and the like as in the prior art and without the use of emulsion-based paint, cement molding Achieve the required properties as a product, homogenize the tissue and properties, prevent Efro, and even
Ri FIG releasability and coating Makumitsu adhesion countercurrent above block during curing
The occurrence of king can be prevented .
【０００９】これは、フミン酸塩の優れた添加効果によ
るものである。フミン酸塩は、腐植酸とも呼ばれている
フミン酸の塩であり、古くは、腐朽した植物体からアル
カリ水溶液を用いて抽出した黒色溶液に、鉱酸等を加え
て酸性にするときに沈殿する、褐色ないし黒褐色のゲル
状物に付けられた名称として知られているものである。[0009] Re This is due to the excellent effect of the addition of humic acid salt. Humic acid salts are salts of humic acids, also known as humic acids, old Ku is the black solution extracted from a plant that is rotting with an alkaline aqueous solution, when acidified by adding a mineral acid such as precipitates, in which to not brown known as the name given to the gel-like material of a black brown.
【００１０】現在では、フミン酸の化学構造は、スフェ
ロコロイド状をなし、各種芳香環（核）が架橋結合した
複雑な構造であることがわかってきている。また、フミ
ン酸には、天然のものと、亜炭、褐炭などの原料を硝酸
酸化して得られるニトロフミン酸が知られてもいる。こ
の発明に用いられるフミン酸塩は、これらのフミン酸の
アルカリ金属、アルカリ土類金属等の金属塩、アンモニ
ウム塩等の無機塩からなる。 [0010] Currently, Gaku構 granulation of humic acid, without the spheroplasts colloidal, various aromatic ring (nucleus) there has been found to be <br/> complex structure cross-linked. Further, the off Mi <br/> phosphate, it is those of natural, lignite, also known nitrohumic acid obtained by nitric acid oxidation of the raw materials such as brown coal. The humic acid salt used in the invention, the alkali metal of the humic acids, metal salts such as alkaline earth metals, ing from inorganic salts such as ammonium salts.
【００１１】このような特徴のあるフミン酸の使用によ
って、フミン酸のフェノールカルボン酸縮合構造におけ
る官能基が、セメント水和物中のＣａ（カルシウム）と
強い結合を形成し、養生のエフロの発生を抑えるものと
推察される。また、フミン酸の親水および親油の両性特
性によって、セメントスラリー、セメント水和物の分散
性を良好にし、かつ、結合力を増大させるものと考えら
れる。さらには、フミン酸の安定した多環構造によっ
て、セメント成形物の耐熱性、耐候性が良好となるとも
考えられる。[0011] The use of humic acids with such features, functional groups in the phenolic carboxylic acid condensation structure of humic acid, to form a strong bond between Ca (calcium) cement hydrate, occurrence of efflorescence Curing It is presumed to suppress. Furthermore, the hydrophilic and amphoteric properties of the parent oil humic acid, cement slurry, to improve the dispersibility of the cement hydrate, and believed to increase the bond strength. Furthermore, the stable polycyclic structure of humic acid, the heat resistance of the cement moldings, considered <br/> also weather resistance is improved.
【００１２】以下、実施例を示し、さらに詳しくこの発
明のセメント成形物の特性改善方法について説明する。Hereinafter, examples will be shown, and the method for improving the characteristics of the cement molded product of the present invention will be described in more detail.
【００１３】普通ポルトランドセメントに、スラグ、ノ
ニオン界面活性剤およびメチルセルロースを１５重量％
配合し、次いで、表１に示した通りの割合のフミン酸塩
を添加して混練し、得られた水和混練物からセメント板
を成形した。この成形物を養生し、硬化させた。[0013] Hiroshi Tsupo the belt land cement, slag, nonionic surfactants and methylcellulose to 15 wt%
Then, humic acid salts in the proportions shown in Table 1 were added and kneaded, and a cement board was formed from the obtained hydrated kneaded product. This molded product was cured and cured.
【００１４】成形物の表面に塗装を施して完成品とし
た。そして、このセメント成形物について、セメント組
織の分散性、消泡性（微小消泡性）、エフロ防止性、塗
膜密着性（テープ剥離）について評価した。この結果も
表１に示した。この発明によって優れた特性のセメント
成形物が得られることがわかる。[0014] was the finished product subjected to a coating on the surface of the formed shape products. Then, this cement moldings, dispersibility of cement tissue, antifoaming (micro defoaming property), efflorescence preventing property was evaluated with the coating film adhesion (tape peeling). The results are also shown in Table 1. It is understood that a cement molded product having excellent characteristics can be obtained by the present invention.
【００１５】なお、フミン酸塩としては次のものを使用
した。 ａ：フミン酸ナトリウム（株式会社テルナイト：ＣＨ−０２） ｐＨ ９以上 有効成分 ８０％以上 水不溶成分 １５％以下 ｂ：フミン酸アンモニウム（ＣＨＡ−０７） ｐＨ 6.5 ±0.5 The following humates were used. a: Sodium humate (Ternight: CH-02) pH 9 or more Active ingredient 80% or more Water-insoluble component 15% or less b: Ammonium humate (CHA-07) pH 6.5 ± 0.5
【００１６】[0016]
【表１】 [Table 1]
【００１７】[0017]
【発明の効果】この発明により、以上詳しく説明した通
り、材料分散性、エフロ防止性とともに、離型性および
塗膜密着性が向上し、また、養生時のブロッキングが防
止される。従来のような多種の添加剤や、エマルジョン
系塗料の養生前塗布を必要としない。Effect of the Invention] This invention, more fully described with streets, material dispersion, together with e furo preventing properties, releasability and <br/> improved coating adhesion, but also, blocking at the time of curing is proof
Is stopped. Conventional various additives and like, it does not require curing prior to coating the fabric of the emulsion-based paint.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) C04B 24/12 C04B 28/00 - 28/04 C04B 24:12 C04B 103:40 C04B 103:50 C04B 111:21──────────────────────────────────────────────────の Continued on the front page (58) Field surveyed (Int. Cl. 6 , DB name) C04B 24/12 C04B 28/00-28/04 C04B 24:12 C04B 103: 40 C04B 103: 50 C04B 111: twenty one
Claims (3)
合し、混練することにより、セメント成形物の離型性お
よび塗膜密着性を向上させ、養生時に発生しやすいブロ
ッキングを防止することを特徴とするセメント成形物の
特性改善方法。[Claim 1] A humic acid salt is added to a cement composition component , mixed and kneaded to obtain a releasability of a cement molded product.
Improves the adhesion of the coating film and improves the adhesion of the coating.
Cement moldings, characterized in that to prevent Kkingu
Characteristics improvement method .
分）の割合で添加配合する請求項１記載のセメント成形
物の特性改善方法。2. A characteristic improvement method according to claim 1 cement molded product according added in a proportion of humic acid salt from 0.1 to 20.0 wt% (solids).
添加配合する請求項１または２記載のセメント成形物の
特性改善方法。3. A according to claim 1 or 2 cement moldings according adding blended humic acid salt as a solid or solution
Characteristics improvement method .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3339049A JP2771917B2 (en) | 1991-12-20 | 1991-12-20 | Method for improving properties of cement moldings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3339049A JP2771917B2 (en) | 1991-12-20 | 1991-12-20 | Method for improving properties of cement moldings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05170499A JPH05170499A (en) | 1993-07-09 |
| JP2771917B2 true JP2771917B2 (en) | 1998-07-02 |
Family
ID=18323776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3339049A Expired - Fee Related JP2771917B2 (en) | 1991-12-20 | 1991-12-20 | Method for improving properties of cement moldings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2771917B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6740423B2 (en) | 2000-01-31 | 2004-05-25 | Nichiha Corporation | Colored building boards, manufacturing methods thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4837622B2 (en) * | 2007-05-21 | 2011-12-14 | 電気化学工業株式会社 | Cement admixture and cement composition |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5244281B2 (en) * | 1973-03-20 | 1977-11-07 | ||
| JPS5855357A (en) * | 1981-09-28 | 1983-04-01 | 日本重化学工業株式会社 | Concrete retarder |
| JPS5997565A (en) * | 1982-11-26 | 1984-06-05 | 日本重化学工業株式会社 | Chemical admixing agent for concrete |
| JPS63144154A (en) * | 1986-12-05 | 1988-06-16 | 満尾 浩治 | Hardened matter |
-
1991
- 1991-12-20 JP JP3339049A patent/JP2771917B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6740423B2 (en) | 2000-01-31 | 2004-05-25 | Nichiha Corporation | Colored building boards, manufacturing methods thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05170499A (en) | 1993-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |