JPS60221352A - Cementitious self-leveling material composition - Google Patents
Cementitious self-leveling material compositionInfo
- Publication number
- JPS60221352A JPS60221352A JP7755584A JP7755584A JPS60221352A JP S60221352 A JPS60221352 A JP S60221352A JP 7755584 A JP7755584 A JP 7755584A JP 7755584 A JP7755584 A JP 7755584A JP S60221352 A JPS60221352 A JP S60221352A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- material composition
- self
- leveling
- alum
- 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
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
- C04B28/04—Portland 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
(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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明はセメント系セルフレベリング材組成物に関し、
水と混練して優れた流動性を示し、特に流し延べ床用材
料として均一な平滑面を形成し、かつ必要時間内に硬化
して所望の初期強度を発現し得るセメント系セルフレベ
リング材を提供するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cementitious self-leveling material composition,
Provides a cement-based self-leveling material that exhibits excellent fluidity when mixed with water, forms a uniform smooth surface especially as a material for cast flooring, and can harden within the required time to develop the desired initial strength. It is something to do.
従来、コンクリートを打設して硬化後、その表面をセメ
ントモルタルで平滑（水平）に金ゴテ朴）−ｋＩｔｔｙ
行ちナーめｒ 執鋤＃宙Ｔの千１川松トび時間を要して
いた。これに対して近年、コンクリートの打設面に流動
性の良好な混線材を流し込むむだけで、該混線材の自然
流動により所定の平滑面を形成するセメント系セルフレ
ベリング相が開発されている。即ち、かかるセメント系
セルフレベリング材は流し込みに必要な流動性を有し、
自然流動により良好な平滑（水平）而を形成すると共に
、所定の時間内に硬化して速かに強度を発現することが
要求される。Conventionally, after concrete is poured and hardened, its surface is smoothed (horizontally) with cement mortar.
It took a long time for Senryu Kawamatsu of Shusho #Sora T. On the other hand, in recent years, a cement-based self-leveling phase has been developed that forms a predetermined smooth surface by the natural flow of the mixing material simply by pouring a mixing material with good fluidity onto the concrete pouring surface. That is, such a cement-based self-leveling material has the fluidity necessary for pouring,
It is required to form a smooth (horizontal) surface by natural flow, and to harden within a predetermined time to quickly develop strength.
一般にセメント系セルフレベリング材は混練する水量を
多くすると軟かなスラリ状となり、流動性（フロー値）
が増大する。しかしながら、５セメント系セルフレベリ
ング材の混線水量カ極端に（不必要に）多い場合には、
該セメント系セルフレベリング材の硬化体における初期
強度（材令１〜２日）の低下が避けられず、フＩＪ ＋
ジング現象を誘発し、レイタンス残留の原因とナル、シ
たがって、セメント系セルフレベリング材は所定以上の
流動性（フロー値）を発揮すると共に、それに応じて初
期強度が出来る限り低下しないことが望まれる。In general, when cement-based self-leveling materials are kneaded with a large amount of water, they become soft and slurry-like, resulting in fluidity (flow value).
increases. However, if the amount of crosstalk water in the cement-based self-leveling material is extremely (unnecessarily) large,
A decrease in the initial strength (after 1 to 2 days) of the cement-based self-leveling material in the cured product is unavoidable, resulting in a decrease in IJ +
Therefore, it is desirable for cement-based self-leveling materials to exhibit fluidity (flow value) above a specified level, and to prevent the initial strength from decreasing as much as possible. It will be done.
本発明者らは上記に鑑み鋭意研究の結果、従来のセメン
ト系モルタル組成物に明ばん類を配合することにより、
フロー値の増大に応じて初期強度の低下が小さい良好な
セメント系セルフレベリング材が得られることを見出し
て、本発明を提供するに至ったものである。即ち、本発
明はセメント系モルタル組成物に明ばん類を配合してな
るセメント系セルフレベリング材組成物であり水と混練
して優れた流動性を示し、特に１９ｃｍ以上のフロー値
で所望の初期強度を発揮する。In view of the above, the present inventors conducted extensive research and found that by blending alum into a conventional cement-based mortar composition,
The present invention was developed based on the discovery that a good cementitious self-leveling material whose initial strength decreases little as the flow value increases is obtained. That is, the present invention is a cement-based self-leveling material composition made by blending alum into a cement-based mortar composition, and exhibits excellent fluidity when mixed with water, and particularly has a flow value of 19 cm or more to achieve a desired initial level. Demonstrate strength.
本発明のセメント系モルタル組成物としては、従莱公知
のものが特に制限なく用いられ、例えばポルトランドセ
メント、フライアッシュなどの粉状の非晶質シリカおよ
び石膏を主成分とする左官用モルタル組成物が好ましい
。一般にポルトランドセメント１００重量部、フライア
ッシュ５〜４５重量部および工水石膏１〜４４重量部よ
りなるセメント組成物が用いられる。As the cement mortar composition of the present invention, any known one may be used without particular limitation, such as a mortar composition for plastering whose main components are powdered amorphous silica and gypsum such as Portland cement and fly ash. is preferred. Generally, a cement composition consisting of 100 parts by weight of Portland cement, 5 to 45 parts by weight of fly ash, and 1 to 44 parts by weight of water gypsum is used.
上記の如きセメント系モルタル組成物には、その他の成
分という分散剤、保水剤、骨材など一般添加剤がそれぞ
れ１種または２種以上を必要に応じて配合される。In the cement mortar composition as described above, one or more general additives such as a dispersant, a water retention agent, and an aggregate, which are other components, are blended as necessary.
分散剤としては公知の減水剤、例えばアリールスルホン
Ｉ’ｌ１１．ｋｌｎ 、アルキルナフタリンスルホン酸
塩、リグニンスルホン酸塩、リン酸エステル系界面活性
剤、メラミンスルホン酸塩系複合物（縮合物）、ナフタ
リンスルホン酸塩縮合物。Dispersants include known water reducing agents, such as arylsulfone I'l11. kln, alkylnaphthalene sulfonate, lignin sulfonate, phosphate ester surfactant, melamine sulfonate complex (condensate), naphthalene sulfonate condensate.
ポリアルキルアリルスルホン酸塩、高縮合トリアジン系
化合物などが１種または２種以上を組み合せて用いるこ
とが出来る。特に本発明のセメント系セルフレベリング
材組成物としては、他の必須成分である明ばん類と共に
特に高縮合トリアジン系化合物またはメラミンスルホン
酸塩保合物またはスルホン化メラミン縮合物の分散剤と
組み合せて配合することが極めて有効である。かかる分
散剤の配合により流動性および初期強度を向上できるが
、配合割合が多くなると流動性はそのまま向トするが初
拙強度の低下を招く。したがって、セメント系モルタル
組成主
物のＭ成分に対して一般に０．１〜０．５重量％であれ
ばよい。Polyalkylaryl sulfonates, highly condensed triazine compounds, and the like can be used alone or in combination of two or more. In particular, the cementitious self-leveling material composition of the present invention may be combined with other essential ingredients such as alum, particularly in combination with a dispersant of a highly condensed triazine compound or a melamine sulfonate condensate or a sulfonated melamine condensate. It is extremely effective to mix them together. By blending such a dispersant, fluidity and initial strength can be improved; however, if the blending ratio increases, the fluidity will remain the same, but the initial strength will decrease. Therefore, it is generally sufficient that it is 0.1 to 0.5% by weight based on the M component of the main cement mortar composition.
また、保水剤としては一般にセルロース系。In addition, cellulose-based water retention agents are generally used.
ビニル系の化合物が用いられるが、好ましくはメチルセ
ルロース、ヒドロキシエチルセルロース、ヒドロキシプ
ロピルセルロース、メチルヒドロキシエチルセルロース
、ヒドロキシプロピルメチルセルロースなどのセルロー
ス類が、セメント系モルタル組成物の主成分に対して一
般に０．１〜５重量％の範囲で用いられる。Vinyl-based compounds are used, but preferably celluloses such as methylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, methylhydroxyethylcellulose, and hydroxypropylmethylcellulose are used, generally in a ratio of 0.1 to 5% relative to the main component of the cement mortar composition. It is used in a range of % by weight.
さらにまた、骨材としては海砂、海砂、砕砂など普通細
骨材などが用いられる。Furthermore, ordinary fine aggregates such as sea sand, sea sand, and crushed sand are used as the aggregate.
上記した如きセメント系モルタル組成物において、分散
剤など配合する添加剤を選択して調製された各種のセメ
ント系セルフレベリング材が既に提案されている。しか
して、本発明のセメント系セルフレベリング材組成物に
おいては、セメント系モルタル組成物に特に制限なく、
明ばん類を配合することが、所望の流動性を保ちつつ、
かつ初期の凝結と強度を促進しつ又プリージング抑制効
果を発揮するセルフレベリング材を得るために椿めて重
要である。本発明に用いる明ばん類として具体的には、
例えばカリウム明ばん石、ナトリウム明ばん石、アンモ
ニウム明ばん、鉄量゛ばん、クロム明ばんなどを粉末で
、特に加熱（４００℃以上）処理して活性化させて用い
ることが好ましく用いられる。かがる４重量％、好まし
くはｏ、ｏｉ〜２重量％で十分である。Various cement-based self-leveling materials have already been proposed, which are prepared by selecting additives such as dispersants to be added to the above-mentioned cement-based mortar compositions. Therefore, in the cement-based self-leveling material composition of the present invention, the cement-based mortar composition is not particularly limited;
By incorporating alum, while maintaining the desired fluidity,
Moreover, it is extremely important to obtain a self-leveling material that promotes initial setting and strength, and also exhibits an effect of suppressing pleating. Specifically, the alums used in the present invention include:
For example, it is preferable to use potassium alumite, sodium alumite, ammonium alum, iron alumite, chromium alum, etc. in the form of a powder, in particular activated by heating (400° C. or higher). 4% by weight, preferably o, oi to 2% by weight, is sufficient.
本発明におけるセメント系セルフレベリング材組成物の
各成分を配合する順序は特に制限されない。一般には、
本発明のセメント系セルフレベリング材組成物における
所定の各成分を同時に配合して調製される。また、予め
調製されたセメント系モルタル組成物に、所定量の明ば
ん類、あるいは他の添加剤と組み合せて明ばん類を配合
する方法も簡便である。The order in which the components of the cementitious self-leveling material composition of the present invention are mixed is not particularly limited. In general,
The cement-based self-leveling material composition of the present invention is prepared by simultaneously blending each predetermined component. It is also convenient to mix alum in a predetermined amount or in combination with other additives into a cement-based mortar composition prepared in advance.
なお。本発明のセメント系セルフレベリング材組成物に
は、前記したセメント系モルタル組成物の添加剤のほか
分散助剤、消泡剤、硬化調整剤、凍結防止剤など公知の
添加剤も必要に応じて適宜配合することが出来る。特に
本発明においてはセメント系セルフレベリング材の水和
に伴う収縮に対してはカルシウム・サルフォ・アルミネ
ートなどの収縮補償材を用いることが有効である。In addition. In addition to the above-mentioned additives for the cement-based mortar composition, the cement-based self-leveling material composition of the present invention may also contain known additives such as a dispersion aid, an antifoaming agent, a hardening modifier, and an antifreeze agent, as necessary. They can be mixed as appropriate. In particular, in the present invention, it is effective to use a shrinkage compensating material such as calcium sulfo aluminate for shrinkage caused by hydration of the cement self-leveling material.
以下に実施例を示すが、本発明はこれに限定されるもの
でない。Examples are shown below, but the present invention is not limited thereto.
実施例１
としてスルホン化メラミン縮合物（昭和電工社製、メル
メントＦ−１０）と ″
と云とカリウム明ばん仮焼物（昭和鉱業社製。Example 1: A sulfonated melamine condensate (Melment F-10, manufactured by Showa Denko Co., Ltd.) and a potassium alum calcined product (manufactured by Showa Mining Co., Ltd.).
ペルデンＳ）、およびカルシウム・サルフオ・アルミネ
ート（電気化学工業社製、デンカＣＡＳ ）とをそれぞ
れ第２表に示す割合で配合して、セメント系セルフレベ
リング材組成物を製造した。Pelden S) and calcium sulfo aluminate (manufactured by Denki Kagaku Kogyo Co., Ltd., Denka CAS) were blended in the proportions shown in Table 2 to produce a cement-based self-leveling material composition.
次いで、各セメント系セルフレベリング材組成物に対し
てフロー値が２２０ｍ前後になるような添加水量になる
ように混練してセルフレベリング利を調製した後、流動
性（フロー値）と初期強度（材令１〜２日）を測定した
。なおフロー１直の試験方法は、みがき硝子（Ｈさ５霜
）上に塩化ビニル製パイプ（５０Ａ、内径５０ｍｍ。Next, after adjusting the self-leveling efficiency by kneading each cement-based self-leveling material composition in such a manner that the amount of water added is such that the flow value is around 220 m, the fluidity (flow value) and initial strength (material (1st to 2nd day of age) was measured. The test method for one flow shift was to place a vinyl chloride pipe (50A, inner diameter 50mm) on polished glass (H5 frost).
高さ５１喘）を置き、混線スラリーを充填した後、同パ
イプを引き上げ、混練スラリーの広がりが静止した後、
直角方向の直径（ｍ）を測定し、その平均値をめた。ま
た、初期強度はＪＩＳ Ｒ５２０１−９の強さ試験法に
準じｔ−試験休日）経過後の圧縮強度を示す。After filling the mixed slurry with a height of 51 mm, the pipe is pulled up, and after the spreading of the mixed slurry has stopped,
The diameter (m) in the right angle direction was measured and the average value was calculated. In addition, the initial strength indicates the compressive strength after the t-test (holiday) according to the strength testing method of JIS R5201-9.
スルホン化メラミン縮合物（Ｆ−１０と略記）、カルラ
ム明ばん仮焼物物（ＶＳと略記）およびカルシウム・サ
ルフオ・アルミネ−）（ＣＡＳと略記）のそれぞれ配合
割合（重量％）と、それら配合した各セメント系セルフ
レベリング材組成物に混練した水量ｗ（’１）およびフ
ロー値（ｍｍ ）を示す。The respective blending ratios (wt%) of sulfonated melamine condensate (abbreviated as F-10), Calum alum calcined product (abbreviated as VS), and calcium sulfur alumina (abbreviated as CAS), and their blended contents. The amount of water w ('1) and flow value (mm 2 ) kneaded into each cement-based self-leveling material composition are shown.
また第３表は第２表で調製したセルフレベリング材の１
日初期強度σ１（驚）と２日初期強度σ２（ｋＭ）を示
す。Table 3 also shows 1 of the self-leveling materials prepared in Table 2.
The initial intensity σ1 (surprise) on the first day and the initial intensity σ2 (kM) on the second day are shown.
Claims (1)
るセメント系セルフレベＩＪ ７グ材組成物 ２）セメント系モルタル組成物がセメント、フライアッ
シュおよび石膏を特徴とする特許請求の範囲第１項に記
載のセメント系セルフレベリング材組成物 ３）セメント系モルタル組成物が分散剤、保水剤、骨材
など一般添加剤の１種または２種以上を含有する特許請
求の範囲第１項または第２項に記載のセメント系セルフ
レベ＋）７グ材組成物 ４）分散剤が高縮合トリアジン系化合物またはスルホン
化メラミン縮合物である特許請求の範囲第３項に記載の
セメント系セルフレベリ５） 保水剤がセルロースエー
テル類である特許請求の範囲第３項に記載のセメント系
セルフレベリング材組成物 ６）骨材が砕砂である特許請求の範囲第３項に記載のセ
メント系セルフレベリング材組成物７）明ばん類がナト
リウム明ばん石、アンモニウム明ばん、鉄門ばんおよび
クロム明ばんよりなる群から選ばれた少なくとも一種で
ある特許請求の範囲第１項に記載のセメント系セルフレ
ベリング組成物[Scope of Claims] 1) A cement-based self-leveling IJ7 material composition made by blending alum into a cement-based mortar composition. 2) A patent in which the cement-based mortar composition is characterized by cement, fly ash, and gypsum. Cement-based self-leveling material composition according to claim 1 3) Claims in which the cement-based mortar composition contains one or more general additives such as a dispersant, a water retention agent, and an aggregate. The cement-based self-leveling material composition according to claim 1 or 2, and 4) the cement-based self-leveling material composition according to claim 3, wherein the dispersant is a highly condensed triazine compound or a sulfonated melamine condensate. Self-levelling 5) Cement-based self-leveling material composition according to claim 3, wherein the water retention agent is cellulose ethers. 6) Cement-based self-leveling material composition according to claim 3, wherein the aggregate is crushed sand. Material composition 7) Cement-based self-leveling according to claim 1, wherein the alum is at least one selected from the group consisting of sodium alum, ammonium alum, iron alum, and chrome alum. Composition
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7755584A JPS60221352A (en) | 1984-04-19 | 1984-04-19 | Cementitious self-leveling material composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7755584A JPS60221352A (en) | 1984-04-19 | 1984-04-19 | Cementitious self-leveling material composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60221352A true JPS60221352A (en) | 1985-11-06 |
| JPH0254292B2 JPH0254292B2 (en) | 1990-11-21 |
Family
ID=13637259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7755584A Granted JPS60221352A (en) | 1984-04-19 | 1984-04-19 | Cementitious self-leveling material composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60221352A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63129052A (en) * | 1986-11-15 | 1988-06-01 | 株式会社トクヤマ | Cementitious self-leveling material composition |
| US5378279A (en) * | 1990-08-10 | 1995-01-03 | Conroy; Michel | Enhanced cement mixed with selected aggregates |
| JP2021510670A (en) * | 2018-04-26 | 2021-04-30 | カルセム ゲーエムベーハーＣａｌｕｃｅｍ ＧｍｂＨ | Low Belite CSA Cement for Construction Chemicals |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5635621A (en) * | 1979-08-28 | 1981-04-08 | Tokyo Shibaura Electric Co | Digital protective realy check system |
| JPS5841746A (en) * | 1981-08-31 | 1983-03-11 | 新日鐵化学株式会社 | Self leveling floor composition |
| JPS593056A (en) * | 1982-06-30 | 1984-01-09 | 電気化学工業株式会社 | Self levelling material |
-
1984
- 1984-04-19 JP JP7755584A patent/JPS60221352A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5635621A (en) * | 1979-08-28 | 1981-04-08 | Tokyo Shibaura Electric Co | Digital protective realy check system |
| JPS5841746A (en) * | 1981-08-31 | 1983-03-11 | 新日鐵化学株式会社 | Self leveling floor composition |
| JPS593056A (en) * | 1982-06-30 | 1984-01-09 | 電気化学工業株式会社 | Self levelling material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63129052A (en) * | 1986-11-15 | 1988-06-01 | 株式会社トクヤマ | Cementitious self-leveling material composition |
| US5378279A (en) * | 1990-08-10 | 1995-01-03 | Conroy; Michel | Enhanced cement mixed with selected aggregates |
| JP2021510670A (en) * | 2018-04-26 | 2021-04-30 | カルセム ゲーエムベーハーＣａｌｕｃｅｍ ＧｍｂＨ | Low Belite CSA Cement for Construction Chemicals |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0254292B2 (en) | 1990-11-21 |
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