JPH10121708A - Floor construction method and cement self-leveling material - Google Patents
Floor construction method and cement self-leveling materialInfo
- Publication number
- JPH10121708A JPH10121708A JP27654496A JP27654496A JPH10121708A JP H10121708 A JPH10121708 A JP H10121708A JP 27654496 A JP27654496 A JP 27654496A JP 27654496 A JP27654496 A JP 27654496A JP H10121708 A JPH10121708 A JP H10121708A
- Authority
- JP
- Japan
- Prior art keywords
- self
- leveling
- aqueous composition
- heat medium
- water
- 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.)
- Withdrawn
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
- C04B24/38—Polysaccharides or derivatives thereof
-
- 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
-
- 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
- C04B2111/60—Flooring materials
- C04B2111/62—Self-levelling compositions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Floor Finish (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、床の施工方法およ
びセメント系セルフレベリング材に関するものである。TECHNICAL FIELD The present invention relates to a floor construction method and a cement-based self-leveling material.
【0002】[0002]
【従来の技術】セルフレベリング材を使用しての床の施
工では、セルフレベリング性水性組成物に高い流動性を
必要とするために、水分の配合量を高める等の対策が採
られている。2. Description of the Related Art In the construction of floors using self-leveling materials, measures have been taken to increase the blending amount of water, etc., since the self-leveling aqueous composition requires high fluidity.
【0003】[0003]
【発明が解決しようとする課題】ところで、前記のよう
な床の施工方法およびセルフレベリング材の場合、セル
フレベリング性水性組成物の打設、硬化の過程におい
て、水分の蒸発、乾燥と、それに伴うセルフレベリング
性水性組成物の収縮により表面にひび割れが発生しやす
く、また、養生期間が延長するといった問題があった。
特に、耐水性に優れかつ用途の広いセメント系セルフレ
ベリング材では、水分配合量の増大による乾燥ひび割れ
が顕著になるため、施工性が高く、ひび割れの発生が少
なく、しかも養生期間が短い低コストの製品の開発が求
められていた。By the way, in the case of the floor construction method and the self-leveling material as described above, in the process of casting and curing the self-leveling aqueous composition, the evaporation and drying of water and the accompanying processes. There has been a problem that the surface of the self-leveling aqueous composition tends to crack due to shrinkage, and that the curing period is extended.
In particular, in cement-based self-leveling materials that are excellent in water resistance and versatile, dry cracks due to an increase in the amount of water content become remarkable, so that the workability is high, the occurrence of cracks is small, and the curing period is short and low cost. Product development was required.
【0004】ひび割れの対策としては、例えば、特開昭
56−84538に示されるように石灰系膨張材を添加
したり、特開昭59−146960に示されるように石
灰・石膏系膨張材を添加することが提案されているが、
いずれも、十分な割れ防止効果を得るまでには至ってい
ない。特開昭59−35053には、粒径を調整した半
水石膏をセメント系セルフレベリング材に添加し、セメ
ントとフライアッシュとの反応生成物の生成速度を緩慢
にして、反応生成物の生成による膨張速度をセメントの
硬化収縮速度とほぼ同一にすることでひび割れの発生を
防ぐことが提案されているが、これも十分な割れ防止効
果を得るまでには至っていない。特願平5−29467
や特願平7−187745には、セメント系セルフレベ
リング材に骨材を添加することが提案されているが、他
のものに比べて比較的高いひび割れ防止効果が得られる
ものの、流動性が劣るため施工性が悪く、問題の根本的
な解決には至らない。As measures against cracks, for example, a lime-based expanding material is added as disclosed in JP-A-56-84538, or a lime / gypsum-based expanding material is added as disclosed in JP-A-59-146960. It is suggested that
In any case, it has not yet reached a sufficient crack prevention effect. JP-A-59-35053 discloses that a hemihydrate gypsum having an adjusted particle size is added to a cement-based self-leveling material to slow the rate of production of a reaction product between cement and fly ash, thereby reducing the production of a reaction product. It has been proposed to prevent the occurrence of cracks by making the expansion rate almost the same as the hardening and shrinking rate of cement, but this has not yet achieved a sufficient crack prevention effect. Japanese Patent Application 5-29467
And Japanese Patent Application No. Hei 7-187745 propose that an aggregate is added to a cement-based self-leveling material, but a relatively high crack prevention effect can be obtained as compared with other materials, but the fluidity is poor. Therefore, the workability is poor, and the problem cannot be solved fundamentally.
【0005】本発明は、前述の課題に鑑みてなされたも
ので、施工性が高く、ひび割れの発生が少なく、しかも
養生期間が短い低コストの床の施工方法およびセメント
系セルフレベリング材を提供することを目的とするもの
である。The present invention has been made in view of the above-mentioned problems, and provides a low-cost floor construction method and a cement-based self-leveling material having high workability, less occurrence of cracks, and a short curing period. The purpose is to do so.
【0006】[0006]
【課題を解決するための手段】本発明は、前記課題を解
決するため、以下の構成を採用した。すなわち、請求項
1記載の発明では、セメント、フライアッシュおよび珪
砂を基材とするセルフレベリング材料に水と泡消剤とを
加え、さらに固形分としてゴム系ラテックスを基材に対
して0.1から10重量パーセント添加してなるセルフ
レベリング性水性組成物を、熱媒体を布設した下地に打
設し、次いで前記熱媒体によりセルフレベリング性水性
組成物を下地側あるいは内部から加熱して硬化させるこ
とを特徴とする床の施工方法を前記課題の解決手段とし
た。The present invention has the following features to attain the object mentioned above. That is, in the invention of claim 1, water and an antifoaming agent are added to a self-leveling material based on cement, fly ash and silica sand, and a rubber-based latex is added as a solid to the base material by 0.1%. A 10% by weight of the self-leveling aqueous composition is added to a base on which a heating medium is laid, and then the self-leveling aqueous composition is heated and cured from the base side or inside with the heating medium. A floor construction method characterized by the following is a means for solving the above problem.
【0007】本発明によれば、打設したセルフレベリン
グ性水性組成物を熱媒体により加熱して下地側あるいは
内部から硬化させることにより、乾燥時の収縮歪みの発
生を抑制し、表面のひび割れを防止する。ゴム系ラテッ
クスとしては、カチオン系クロロピレンエマルジョン等
を適用する。According to the present invention, the cast self-leveling aqueous composition is heated with a heat medium and cured from the underside or inside, thereby suppressing the occurrence of shrinkage distortion during drying and preventing cracks on the surface. To prevent. As the rubber latex, a cationic chloropyrene emulsion or the like is applied.
【0008】また、発明者らは、セメント、フライアッ
シュおよび珪砂を基材とするセルフレベリング材料に水
と泡消剤とを加え、さらに固形分としてカチオン系クロ
ロピレンエマルジョンを基材に対して0.1から10重
量パーセント添加してなるセルフレベリング性水性組成
物が、硬化後の耐水性や下地コンクリートとの接着性に
優れるほか、圧縮強度や曲げ強度が向上することを見出
した。これら強度の向上は、添加したカチオン系クロロ
ピレンエマルジョンのポリマーの炭素の二重結合部が酸
化珪素(SiO)あるいは酸化カルシウム(CaO)系
の金属酸化物を介在として結び付き、ネットワークを形
成することが原因と考えられる。なお、カチオン系クロ
ロピレンエマルジョンの固形分が基材に対して0.1重
量パーセント以下では強度の向上には不十分であり、1
0重量パーセント以上では流動性が不十分になることか
ら、0.1から10重量パーセントにて本発明の目的が
達成される。In addition, the inventors have added water and a defoamer to a self-leveling material based on cement, fly ash and silica sand, and further added a cationic chloropyrene emulsion as a solid to the base material. It has been found that the self-leveling aqueous composition to which .1 to 10% by weight is added is excellent in water resistance after curing and adhesion to the underlying concrete, and also has improved compressive strength and flexural strength. The improvement in the strength is due to the fact that the carbon double bond of the polymer of the cationic chloropyrene emulsion added is linked via a silicon oxide (SiO) or calcium oxide (CaO) metal oxide to form a network. Probable cause. When the solid content of the cationic chloropyrene emulsion is 0.1% by weight or less based on the base material, the strength is insufficient to improve the strength.
Since the fluidity becomes insufficient at 0% by weight or more, the object of the present invention is achieved at 0.1 to 10% by weight.
【0009】例えば、セルフレベリング材を床暖房用の
モルタルとして施工する場合、従来、コンクリート等の
下地に温水流通パイプ等の熱媒体を敷設し、その上より
セルフレベリング性水性組成物を打設して自然養生によ
り硬化させることが一般的であるが、本発明の施工方法
では、請求項1記載のセルフレベリング性水性組成物の
打設直後に熱媒体により下地側あるいは内部から加熱す
ることで硬化させる。カチオン系クロロピレンエマルジ
ョンを基材に対して0.1から10重量パーセント添加
してなるセルフレベリング性水性組成物を打設した場合
には、熱媒体による加熱でカチオン系クロロプレンエマ
ルジョンのポリマーのネットワーク形成反応を促進させ
ることで、表面のひび割れを完全に防止できる。これに
より、セルフレベリング性水性組成物の硬化時間および
養生期間が24時間以内になり、従来が7日から10日
程度、場合によっては数ヶ月であるのに比べて、大幅に
短縮することができる。For example, when the self-leveling material is used as mortar for floor heating, conventionally, a heating medium such as a hot water distribution pipe is laid on a base such as concrete, and a self-leveling aqueous composition is cast thereon. In general, the composition is cured by natural curing, but in the construction method of the present invention, the composition is cured by heating from the base side or inside with a heating medium immediately after the self-leveling aqueous composition according to claim 1 is cast. Let it. When a self-leveling aqueous composition containing 0.1 to 10% by weight of a cationic chloropyrene emulsion added to a base material is cast, the polymer network of the cationic chloroprene emulsion is formed by heating with a heat medium. By accelerating the reaction, cracks on the surface can be completely prevented. As a result, the hardening time and curing period of the self-leveling aqueous composition become less than 24 hours, which can be greatly reduced as compared with about 7 to 10 days in the related art, and several months in some cases. .
【0010】請求項2記載の発明では、セメント、フラ
イアッシュおよび珪砂を基材とするセルフレベリング材
料に水と泡消剤とを加え、さらにゴム系ラテックスを基
材に対して0.1から10重量パーセント、ガラクトマ
ンナンを主成分とする水溶性天然多糖類のカチオン変成
誘導体を基材に対して0.01から1重量パーセント添
加したことを特徴とするセメント系セルフレベリング材
を前記課題の解決手段とした。According to the second aspect of the present invention, water and an antifoaming agent are added to a self-leveling material based on cement, fly ash and silica sand, and a rubber-based latex is added to the substrate in an amount of 0.1 to 10%. Means for Solving the Problems A cement-based self-leveling material characterized in that 0.01 to 1% by weight of a cationically modified derivative of a water-soluble natural polysaccharide containing galactomannan as a main component is added to a substrate. And
【0011】本発明によれば、打設したセルフレベリン
グ性水性組成物の硬化養生期間中に、ガラクトマンナン
を主成分とする水溶性天然多糖類のカチオン変成誘導体
が表面からの水分蒸発速度を抑制して、ひび割れの発生
を防止する。請求項1記載の床の施工方法に適用した場
合、当該施工方法によって得られるひび割れ防止効果を
高めることができ、水分蒸発速度が速い夏期や、乾燥室
内の施工であっても、ひび割れ防止効果が確実に得られ
る。According to the present invention, during the curing and curing period of the poured self-leveling aqueous composition, the cationically modified derivative of a water-soluble natural polysaccharide containing galactomannan as a main component suppresses the rate of water evaporation from the surface. To prevent the occurrence of cracks. When applied to the floor construction method according to claim 1, the crack prevention effect obtained by the construction method can be enhanced, and the crack prevention effect can be improved even in summer when the moisture evaporation rate is fast or in a drying room. Obtained reliably.
【0012】本発明で使用されるガラクトマンナンを主
成分とする水溶性天然多糖類のカチオン変成誘導体は、
グアー豆の胚乳より製造されるグアーガム(主成分はガ
ラクトマンナン)を2,3−エポキシプロピル トリメ
チルアンモニウム クロライドを反応化剤として変成し
た置換度0.11〜0.13のカチオン変成誘導体であ
り、後述の実施形態では、市販商品名「ジャガー−CP
−13」(スイス、メイホール社製)の粉末を水に溶解
してセルフレベリング性水性組成物に添加している。こ
の物質は、鉛などの電解精錬のスムージング剤、木材パ
ルプや鉄鉱石スライムの凝集沈降助剤として知られてい
るものである。The cationically modified water-soluble natural polysaccharide mainly composed of galactomannan used in the present invention is
Modified guar gum (galactomannan) produced from guar bean endosperm is a cationic modified derivative having a substitution degree of 0.11 to 0.13 obtained by modifying 2,3-epoxypropyltrimethylammonium chloride as a reactant. In the embodiment, the commercial product name “Jaguar-CP
-13 "(made by May Hall, Switzerland) is dissolved in water and added to the self-leveling aqueous composition. This substance is known as a smoothing agent for electrolytic refining such as lead, and a coagulation and sedimentation aid for wood pulp and iron ore slime.
【0013】[0013]
【発明の実施の形態】以下本発明の1実施形態を、図1
から図3を参照して説明する。図1および図2におい
て、符号1は下地、2は型枠、3はセルフレベリング性
水性組成物、4は熱媒体(温水流通パイプ)、5は金網
である。下地1は、コンクリート若しくはコンクリート
上に砂利を敷設したもの等を適用する。セルフレベリン
グ性水性組成物3は、セメント、フライアッシュおよび
珪砂を基材とするセルフレベリング材料に水と泡消剤と
を加え、さらに基材に対して3重量パーセントのカチオ
ン系クロロピレンエマルジョン(クロロプレン系ラテッ
クス)を固形分として添加したものである。熱媒体4
は、下地1上面のセルフレベリング性水性組成物3を打
設する領域全体に敷設し、打設したセルフレベリング性
水性組成物3全体を均等に加熱できるようにしておく。
なお、熱媒体4は、温水流通パイプに限定されず、セル
フレベリング性水性組成物3を55℃前後に加熱可能で
あれば、例えば電熱線等の適用も可能である。また、熱
媒体4の配置位置は、セルフレベリング性水性組成物3
の打設表面より下側であれば下地1上面上に限定され
ず、例えば、セルフレベリング性水性組成物3の打設厚
方向中央部や、下地1内部であってもよい。金網5は、
下地1の若干上方で下地1上面と平行に設置する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
3 will be described with reference to FIG. 1 and 2, reference numeral 1 denotes a base, 2 denotes a mold, 3 denotes a self-leveling aqueous composition, 4 denotes a heating medium (hot water distribution pipe), and 5 denotes a wire mesh. As the base 1, a concrete or a gravel laid on concrete is used. The self-leveling aqueous composition 3 is obtained by adding water and an antifoaming agent to a self-leveling material based on cement, fly ash and silica sand, and further adding 3% by weight of a cationic chloropyrene emulsion (chloroprene) to the substrate. (Based latex) as a solid content. Heat medium 4
Is laid on the entire surface of the base 1 on which the self-leveling aqueous composition 3 is to be cast, so that the whole of the self-leveling aqueous composition 3 can be uniformly heated.
The heating medium 4 is not limited to the hot water flow pipe, and for example, a heating wire or the like can be applied as long as the self-leveling aqueous composition 3 can be heated to about 55 ° C. The position of the heat medium 4 is determined by the self-leveling aqueous composition 3.
Is not limited to the upper surface of the base 1 as long as it is below the casting surface of the base 1, for example, it may be the center of the self-leveling aqueous composition 3 in the placement thickness direction or inside the base 1. Wire mesh 5
It is installed slightly above the substrate 1 and parallel to the upper surface of the substrate 1.
【0014】本実施形態では、下地1上の熱媒体4を敷
設した部分にセルフレベリング性水性組成物3を打設
し、この打設の直後から55℃の温水を熱媒体4に流し
て、打設したセルフレベリング性水性組成物3を加熱し
つつ硬化、養生させる。In the present embodiment, the self-leveling aqueous composition 3 is cast on a portion of the base 1 on which the heat medium 4 is laid, and immediately after this, hot water at 55 ° C. is flowed into the heat medium 4. The poured self-leveling aqueous composition 3 is cured and cured while being heated.
【0015】表1は、セルフレベリング性水性組成物3
の硬化後に得られたセルフレベリング水性組成物硬化体
(以下、「硬化体」)の圧縮強度、曲げ強度、ひび割れ
の有無を示す。表1において、比較例1はセルフレベリ
ング性水性組成物3を従来工法により施工し、室温(2
0℃)で硬化、養生して得られる硬化体、比較例2はカ
チオン系クロロプレンエマルジョンを添加していない他
は同一の組成になっているセルフレベリング性水性組成
物を従来工法により施工し、室温(20℃)で硬化、養
生して得られる硬化体である。Table 1 shows the self-leveling aqueous composition 3
This shows the compressive strength, bending strength, and the presence or absence of cracks of the cured product of the self-leveling aqueous composition (hereinafter, “cured product”) obtained after curing of the composition. In Table 1, Comparative Example 1 was prepared by applying the self-leveling aqueous composition 3 by the conventional method, and was performed at room temperature (2
Cured and cured at 0 ° C.), Comparative Example 2 was prepared by applying a self-leveling aqueous composition having the same composition except that the cationic chloroprene emulsion was not added, according to a conventional method. (20 ° C.) cured and cured.
【0016】[0016]
【表1】 [Table 1]
【0017】表1によると、本発明の施工方法で施工し
たセルフレベリング性水性組成物3の硬化体では、6時
間後で既に最終達成強度の半分以上の強度を発現し、水
分蒸発による収縮力に十分耐えてひび割れは全く発生し
ないことが判る。また、硬化、養生期間も1日程度で十
分であることが判る。さらに、セルフレベリング性水性
組成物3の硬化体は、施工方法に関係なく別組成のセル
フレベリング性水性組成物の硬化体より圧縮強度および
曲げ強度が向上している。このことから、3重量パーセ
ントのカチオン系クロロピレンエマルジョンの添加が、
圧縮強度および曲げ強度の向上に大いに寄与しているこ
とが判る。According to Table 1, in the cured product of the self-leveling aqueous composition 3 applied by the application method of the present invention, the strength already attained by half or more of the final achieved strength already appeared after 6 hours, and the shrinkage force due to moisture evaporation. It can be understood that no cracks occur at all. It is also found that a curing and curing period of about one day is sufficient. Further, the cured product of the self-leveling aqueous composition 3 has higher compressive strength and bending strength than the cured product of the self-leveling aqueous composition of another composition regardless of the application method. From this, the addition of 3 weight percent of the cationic chloropyrene emulsion,
It can be seen that it greatly contributes to the improvement of the compressive strength and the bending strength.
【0018】図3は、セルフレベリング性水性組成物3
を本発明の施工方法で施工して得た硬化体と、セルフレ
ベリング性水性組成物3を従来工法で施工した得た硬化
体と、従来の一般的なモルタルと、速硬性モルタルとに
ついての、硬化、養生日数と強度との関係を示す。図3
によれば、セルフレベリング性水性組成物3を本発明の
施工方法で施工して得た硬化体が、硬化、養生期間が最
も短く、しかも圧縮強度、曲げ強度共に従来のものに比
して格段の向上が認められる。FIG. 3 shows a self-leveling aqueous composition 3.
The cured body obtained by applying the construction method of the present invention, and the cured body obtained by applying the self-leveling aqueous composition 3 by the conventional method, a conventional general mortar, and a quick-setting mortar, The relationship between curing and curing days and strength is shown. FIG.
According to the method, the cured product obtained by applying the self-leveling aqueous composition 3 by the application method of the present invention has the shortest curing and curing periods, and has a markedly lower compressive strength and bending strength than conventional ones. Improvement is recognized.
【0019】表2は、セメント、フライアッシュおよび
珪砂を基材とするセルフレベリング材料に水と泡消剤と
を加え、さらにカチオン系クロロプレンエマルジョンを
基材に対して3重量パーセント、ガラクトマンナンを主
成分とする水溶性天然多糖類のカチオン変成誘導体を基
材に対して0.05重量パーセント添加したセルフレベ
リング性水性組成物を、下地1上の熱媒体4を敷設した
部分に打設し、この打設の直後から55℃の温水を熱媒
体4に流して、打設したセルフレベリング性水性組成物
3を加熱しつつ硬化、養生させて得た硬化体の、圧縮強
度、曲げ強度、ひび割れの有無を示す。なお、ガラクト
マンナンを主成分とする水溶性天然多糖類のカチオン変
成誘導体は、セルフレベリング材料に添加した水に溶解
させるか、予め溶媒に溶解させたものをセルフレベリン
グ材料に添加し、これらいずれの添加形態の場合であっ
ても、溶媒量の調整等により、セルフレベリング性水性
組成物3中で高い流動性を有するようにしておく。Table 2 shows that a self-leveling material based on cement, fly ash and silica sand was mixed with water and a defoamer. Further, a cationic chloroprene emulsion was used in an amount of 3% by weight based on the base material, and galactomannan was mainly used. A self-leveling aqueous composition in which a cationically modified derivative of a water-soluble natural polysaccharide as a component is added in an amount of 0.05% by weight based on the base material is cast on a portion of the base 1 on which the heat medium 4 is laid. Immediately after the casting, 55 ° C. hot water is passed through the heating medium 4 to heat and cure the cured self-leveling aqueous composition 3 while heating and curing the cured product. Indicates presence / absence. In addition, the cationically modified derivative of the water-soluble natural polysaccharide containing galactomannan as a main component is dissolved in water added to the self-leveling material, or a solution previously dissolved in a solvent is added to the self-leveling material. Even in the case of the addition form, the self-leveling aqueous composition 3 is made to have high fluidity by adjusting the amount of the solvent.
【0020】[0020]
【表2】 [Table 2]
【0021】表2によれば、この硬化体においても、6
時間後で既に最終達成強度の半分以上の強度を発現し、
水分蒸発による収縮力に十分耐えてひび割れは全く発生
しないことが判る。また、硬化、養生期間も1日程度で
十分であることが判る。また、ガラクトマンナンを主成
分とする水溶性天然多糖類のカチオン変成誘導体の添加
により打設後の硬化体表面からの急激な水分蒸発を抑え
るので、例えば夏期等の水分蒸発が促進される環境下の
施工であっても、ひび割れ防止効果が確実に得られる。According to Table 2, this cured product also has 6
Already after half an hour, the intensity of the final achieved intensity is more than half,
It can be seen that cracking does not occur at all, withstanding the shrinkage due to moisture evaporation. It is also found that a curing and curing period of about one day is sufficient. In addition, the addition of a cationically modified derivative of a water-soluble natural polysaccharide containing galactomannan as a main component suppresses rapid evaporation of water from the surface of the cured product after casting. , The effect of preventing cracking is reliably obtained.
【0022】[0022]
【発明の効果】以上説明したように、請求項1記載の床
の施工方法によれば、打設したセルフレベリング性水性
組成物を熱媒体により加熱して下地側あるいは内部から
硬化させることにより、乾燥時の収縮歪みの発生を抑制
するので、ひび割れの無い平滑な床面が得られ、しか
も、硬化、養生期間を一日程度にすることが可能にな
り、工事期間の大幅な短縮を図ることが出来るといった
優れた効果を奏する。As described above, according to the floor construction method of the first aspect, the cast self-leveling aqueous composition is heated by a heat medium to be cured from the ground side or from the inside. It suppresses the occurrence of shrinkage distortion during drying, so a smooth floor surface without cracks can be obtained, and the hardening and curing period can be reduced to about one day, greatly reducing the construction period. It has an excellent effect that it can be done.
【0023】請求項2記載のセメント系セルフレベリン
グ材によれば、ガラクトマンナンを主成分とする水溶性
天然多糖類のカチオン変成誘導体をセルフレベリング性
水性組成物に添加したことにより、打設後のセルフレベ
リング性水性組成物表面からの急激な水分蒸発を抑える
ので、例えば夏期等の水分蒸発が促進される環境下の施
工であっても、ひび割れの無い平滑な床面が得られると
ともに、ひび割れ防止効果が確実に得られる。特に、請
求項1記載の床の施工方法に適用した場合、水分蒸発が
促進される環境下で短期間で硬化、養生を行っても、ひ
び割れ防止効果を確実に得ることができるといった優れ
た効果を奏する。According to the cement-based self-leveling material of the second aspect, the cationically modified derivative of a water-soluble natural polysaccharide containing galactomannan as a main component is added to the self-leveling aqueous composition, so that the self-leveling aqueous composition can be used. Since the rapid evaporation of water from the surface of the self-leveling aqueous composition is suppressed, a smooth floor without cracks can be obtained and cracks can be prevented even in an environment where water evaporation is promoted, for example, in summer. The effect is surely obtained. In particular, when the method is applied to the floor construction method according to claim 1, an excellent effect that the effect of preventing cracking can be reliably obtained even when curing and curing are performed in a short period of time in an environment where moisture evaporation is promoted. To play.
【図1】 本発明の床の施工方法の1実施形態を示す斜
視図である。FIG. 1 is a perspective view showing one embodiment of a floor construction method of the present invention.
【図2】 図1の正断面図である。FIG. 2 is a front sectional view of FIG.
【図3】 本発明の効果を示す図であって、本実施形態
のセルフレベリング性水性組成物、従来のセルフレベリ
ング性水性組成物モルタル、モルタル、速硬性モルタル
についての、打設後の硬化、養生時間と、強度との関係
を示す。FIG. 3 is a view showing the effect of the present invention, wherein the self-leveling aqueous composition of the present embodiment, the conventional self-leveling aqueous composition mortar, mortar, and quick-setting mortar, The relationship between curing time and strength is shown.
1 下地 3 セルフレベリング性水性組成物 4 熱媒体 DESCRIPTION OF SYMBOLS 1 Substrate 3 Self-leveling aqueous composition 4 Heat medium
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成8年12月26日[Submission date] December 26, 1996
【手続補正1】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0007[Correction target item name] 0007
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【0007】本発明によれば、打設したセルフレベリン
グ性水性組成物を熱媒体により加熱して下地側あるいは
内部から硬化させることにより、乾燥時の収縮歪みの発
生を抑制し、表面のひび割れを防止する。ゴム系ラテッ
クスとしては、カチオン系クロロプレンエマルジョン等
を適用する。According to the present invention, the cast self-leveling aqueous composition is heated with a heat medium and cured from the underside or inside, thereby suppressing the occurrence of shrinkage distortion during drying and preventing cracks on the surface. To prevent. The rubber latex, to apply the cationic chloro-flop Ren emulsion or the like.
【手続補正2】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0008[Correction target item name] 0008
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【0008】また、発明者らは、セメント、フライアッ
シュおよび珪砂を基材とするセルフレベリング材料に水
と泡消剤とを加え、さらに固形分としてカチオン系クロ
ロプレンエマルジョンを基材に対して0.1から10重
量パーセント添加してなるセルフレベリング性水性組成
物が、硬化後の耐水性や下地コンクリートとの接着性に
優れるほか、圧縮強度や曲げ強度が向上することを見出
した。これら強度の向上は、添加したカチオン系クロロ
プレンエマルジョンのポリマーの炭素の二重結合部が酸
化珪素(SiO)あるいは酸化カルシウム(CaO)系
の金属酸化物を介在として結び付き、ネットワークを形
成することが原因と考えられる。なお、カチオン系クロ
ロプレンエマルジョンの固形分が基材に対して0.1重
量パーセント以下では強度の向上には不十分であり、1
0重量パーセント以上では流動性が不十分になることか
ら、0.1から10重量パーセントにて本発明の目的が
達成される。Further, the inventors cement, fly ash and silica sand in self-leveling materials based on water and antifoaming agent was added, the more cationic black <br/> b flop Ren emulsion as solids The self-leveling aqueous composition obtained by adding 0.1 to 10% by weight to the base material is excellent in water resistance after curing and adhesion to the underlying concrete, and that compressive strength and bending strength are improved. I found it. The improvement in strength is due to the added cationic chloro
Double bond of carbon in the polymer flop Ren emulsion ties a metal oxide of silicon oxide (SiO) or calcium oxide (CaO) system as an intervening, it is considered to be caused to form a network. Incidentally, with respect to a 0.1 weight percent cationic black <br/> b flop Ren emulsion solids substrate is insufficient in improving the strength, 1
Since the fluidity becomes insufficient at 0% by weight or more, the object of the present invention is achieved at 0.1 to 10% by weight.
【手続補正3】[Procedure amendment 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0009[Correction target item name] 0009
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【0009】例えば、セルフレベリング材を床暖房用の
モルタルとして施工する場合、従来、コンクリート等の
下地に温水流通パイプ等の熱媒体を敷設し、その上より
セルフレベリング性水性組成物を打設して自然養生によ
り硬化させることが一般的であるが、本発明の施工方法
では、請求項1記載のセルフレベリング性水性組成物の
打設直後に熱媒体により下地側あるいは内部から加熱す
ることで硬化させる。カチオン系クロロプレンエマルジ
ョンを基材に対して0.1から10重量パーセント添加
してなるセルフレベリング性水性組成物を打設した場合
には、熱媒体による加熱でカチオン系クロロプレンエマ
ルジョンのポリマーのネットワーク形成反応を促進させ
ることで、表面のひび割れを完全に防止できる。これに
より、セルフレベリング性水性組成物の硬化時間および
養生期間が24時間以内になり、従来が7日から10日
程度、場合によっては数ヶ月であるのに比べて、大幅に
短縮することができる。For example, when the self-leveling material is used as mortar for floor heating, conventionally, a heating medium such as a hot water distribution pipe is laid on a base such as concrete, and a self-leveling aqueous composition is cast thereon. In general, the composition is cured by natural curing, but in the construction method of the present invention, the composition is cured by heating from the base side or inside with a heating medium immediately after the self-leveling aqueous composition according to claim 1 is cast. Let it. Cationic chloro-flop Ren emulsion when Da設a self-leveling aqueous composition prepared by adding 10% by weight 0.1 relative to the substrate, the polymer of cationic chloroprene emulsion by heating with the heat medium network By accelerating the formation reaction, surface cracks can be completely prevented. As a result, the hardening time and curing period of the self-leveling aqueous composition become less than 24 hours, which can be greatly reduced as compared with about 7 to 10 days in the related art, and several months in some cases. .
【手続補正4】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0013[Correction target item name] 0013
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【0013】[0013]
【発明の実施の形態】以下本発明の1実施形態を、図1
から図3を参照して説明する。図1および図2におい
て、符号1は下地、2は型枠、3はセルフレベリング性
水性組成物、4は熱媒体(温水流通パイプ)、5は金網
である。下地1は、コンクリート若しくはコンクリート
上に砂利を敷設したもの等を適用する。セルフレベリン
グ性水性組成物3は、セメント、フライアッシュおよび
珪砂を基材とするセルフレベリング材料に水と泡消剤と
を加え、さらに基材に対して3重量パーセントのカチオ
ン系クロロプレンエマルジョン(クロロプレン系ラテッ
クス)を固形分として添加したものである。熱媒体4
は、下地1上面のセルフレベリング性水性組成物3を打
設する領域全体に敷設し、打設したセルフレベリング性
水性組成物3全体を均等に加熱できるようにしておく。
なお、熱媒体4は、温水流通パイプに限定されず、セル
フレベリング性水性組成物3を55℃前後に加熱可能で
あれば、例えば電熱線等の適用も可能である。また、熱
媒体4の配置位置は、セルフレベリング性水性組成物3
の打設表面より下側であれば下地1上面上に限定され
ず、例えば、セルフレベリング性水性組成物3の打設厚
方向中央部や、下地1内部であってもよい。金網5は、
下地1の若干上方で下地1上面と平行に設置する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
3 will be described with reference to FIG. 1 and 2, reference numeral 1 denotes a base, 2 denotes a mold, 3 denotes a self-leveling aqueous composition, 4 denotes a heating medium (hot water distribution pipe), and 5 denotes a wire mesh. As the base 1, a concrete or a gravel laid on concrete is used. Self-leveling aqueous composition 3, cement, fly ash and silica sand was added water and antifoaming agent to the self-leveling materials based, 3% by weight of cationic chloro-flop Ren emulsion against further substrate ( (Chloroprene-based latex) as a solid content. Heat medium 4
Is laid on the entire surface of the base 1 on which the self-leveling aqueous composition 3 is to be cast, so that the whole of the self-leveling aqueous composition 3 can be uniformly heated.
The heating medium 4 is not limited to the hot water flow pipe, and for example, a heating wire or the like can be applied as long as the self-leveling aqueous composition 3 can be heated to about 55 ° C. The position of the heat medium 4 is determined by the self-leveling aqueous composition 3.
Is not limited to the upper surface of the base 1 as long as it is below the casting surface of the base 1, for example, it may be the center of the self-leveling aqueous composition 3 in the placement thickness direction or inside the base 1. Wire mesh 5
It is installed slightly above the substrate 1 and parallel to the upper surface of the substrate 1.
【手続補正5】[Procedure amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0016[Correction target item name] 0016
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【0016】[0016]
【表1】 [Table 1]
【手続補正6】[Procedure amendment 6]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0017[Correction target item name] 0017
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【0017】表1によると、本発明の施工方法で施工し
たセルフレベリング性水性組成物3の硬化体では、6時
間後で既に最終達成強度の半分以上の強度を発現し、水
分蒸発による収縮力に十分耐えてひび割れは全く発生し
ないことが判る。また、硬化、養生期間も1日程度で十
分であることが判る。さらに、セルフレベリング性水性
組成物3の硬化体は、施工方法に関係なく別組成のセル
フレベリング性水性組成物の硬化体より圧縮強度および
曲げ強度が向上している。このことから、3重量パーセ
ントのカチオン系クロロプレンエマルジョンの添加が、
圧縮強度および曲げ強度の向上に大いに寄与しているこ
とが判る。According to Table 1, in the cured product of the self-leveling aqueous composition 3 applied by the application method of the present invention, the strength already attained by half or more of the final achieved strength already appeared after 6 hours, and the shrinkage force due to moisture evaporation. It can be understood that no cracks occur at all. It is also found that a curing and curing period of about one day is sufficient. Further, the cured product of the self-leveling aqueous composition 3 has higher compressive strength and bending strength than the cured product of the self-leveling aqueous composition of another composition regardless of the application method. Therefore, the addition of 3% by weight of cationic chloro-flop Ren emulsion,
It can be seen that it greatly contributes to the improvement of the compressive strength and the bending strength.
【手続補正7】[Procedure amendment 7]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0020[Correction target item name] 0020
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【0020】[0020]
【表2】 [Table 2]
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 FI C04B 24:38) (72)発明者 高木 邦年 東京都中央区日本橋室町4丁目3番18号 スカイアルミニウム株式会社内 (72)発明者 市川 洋一 東京都品川区東五反田1丁目11番15号 昭 和電工・デュポン株式会社内 (72)発明者 齋藤 俊樹 東京都港区三田3丁目7番16号 株式会社 芝通内──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 6 Identification code FI C04B 24:38) (72) Inventor Kuniyoshi Takagi 4-3-1-18 Nihonbashi Muromachi, Chuo-ku, Tokyo Inside Sky Aluminum Co., Ltd. (72 ) Inventor Yoichi Ichikawa 1-11-15 Higashi Gotanda, Shinagawa-ku, Tokyo Showa Denko DuPont Co., Ltd. (72) Inventor Toshiki Saito 3-7-16 Mita, Minato-ku, Tokyo
Claims (2)
基材とするセルフレベリング材料に水と泡消剤とを加
え、さらに固形分としてゴム系ラテックスを基材に対し
て0.1から10重量パーセント添加してなるセルフレ
ベリング性水性組成物(3)を、熱媒体(4)を布設し
た下地(1)に打設し、次いで前記熱媒体によりセルフ
レベリング性水性組成物を下地側あるいは内部から加熱
して硬化させることを特徴とする床の施工方法。1. A self-leveling material based on cement, fly ash and silica sand, to which water and an antifoaming agent are added, and that a rubber-based latex is added as a solid content in an amount of 0.1 to 10% by weight based on the base material. The self-leveling aqueous composition (3) is cast on a substrate (1) on which a heat medium (4) is laid, and then the self-leveling aqueous composition is heated from the substrate side or inside by the heat medium. A floor construction method characterized by being cured.
基材とするセルフレベリング材料に水と泡消剤とを加
え、さらにゴム系ラテックスを基材に対して0.1から
10重量パーセント、ガラクトマンナンを主成分とする
水溶性天然多糖類のカチオン変成誘導体を基材に対して
0.01から1重量パーセント添加したことを特徴とす
るセメント系セルフレベリング材。2. A self-leveling material based on cement, fly ash and silica sand, to which water and an antifoaming agent are added. Further, 0.1 to 10% by weight of a rubber-based latex based on the base material and galactomannan are added. A cement-based self-leveling material, wherein a cationically modified derivative of a water-soluble natural polysaccharide as a main component is added in an amount of 0.01 to 1% by weight based on a base material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27654496A JPH10121708A (en) | 1996-10-18 | 1996-10-18 | Floor construction method and cement self-leveling material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27654496A JPH10121708A (en) | 1996-10-18 | 1996-10-18 | Floor construction method and cement self-leveling material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH10121708A true JPH10121708A (en) | 1998-05-12 |
Family
ID=17570966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27654496A Withdrawn JPH10121708A (en) | 1996-10-18 | 1996-10-18 | Floor construction method and cement self-leveling material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH10121708A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100451127B1 (en) * | 2001-07-05 | 2004-10-02 | 한천구 | Combined strengthening method of cement mortar for apartment housing floor |
KR20190018256A (en) * | 2017-08-14 | 2019-02-22 | 옥 자 윤 | Electric floor heating system comprising electric heat cable and construction method thereof |
CN110409775A (en) * | 2019-08-07 | 2019-11-05 | 张晟 | A kind of construction equipment and its engineering method of inorganic mortar gravity flow self-leveling floor |
-
1996
- 1996-10-18 JP JP27654496A patent/JPH10121708A/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100451127B1 (en) * | 2001-07-05 | 2004-10-02 | 한천구 | Combined strengthening method of cement mortar for apartment housing floor |
KR20190018256A (en) * | 2017-08-14 | 2019-02-22 | 옥 자 윤 | Electric floor heating system comprising electric heat cable and construction method thereof |
CN110409775A (en) * | 2019-08-07 | 2019-11-05 | 张晟 | A kind of construction equipment and its engineering method of inorganic mortar gravity flow self-leveling floor |
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Legal Events
Date | Code | Title | Description |
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A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20040106 |