JP2010150084A - Expansive additive composition for cement - Google Patents
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Abstract
Description
本発明は、水分量の少ない系でも優れた収縮補償効果が得られるセメント用膨張材組成物及びこれを用いたセメント系水硬性組成物に関する。 The present invention relates to an expansion material composition for cement that can provide an excellent shrinkage compensation effect even in a system with a small amount of water, and a cement-based hydraulic composition using the same.
コンクリート、モルタル、グラウト、ペースト、セメントスラリー等のセメント材料は、硬化時の結晶体積の減少、その後の乾燥による水分逸散などにより収縮を生じ、過度の収縮はひび割れを発生させ、硬化体の耐久性・美観を損なう。硬化体のこれらの欠点を克服するため、硬化体の間隙水の表面張力を下げることにより乾燥時の水分逸散の際に発生する収縮応力を減じる収縮低減剤（特許文献１）や、水分逸散を防ぐための樹脂エマルションや再乳化形粉末樹脂の添加、水和反応により結晶体積が増加して収縮分を補償する膨張材などが開発されている。 Cement materials such as concrete, mortar, grout, paste, cement slurry, etc. will shrink due to a decrease in crystal volume during curing and subsequent moisture dissipation due to drying, and excessive shrinkage will cause cracks and durability of the cured body. Impairs sexuality and beauty. In order to overcome these drawbacks of the cured body, a shrinkage reducing agent (Patent Document 1) that reduces the shrinkage stress generated during the dissipation of moisture during drying by lowering the surface tension of the pore water of the cured body; Addition of resin emulsion and re-emulsifying powder resin to prevent scattering, expansion material that compensates for shrinkage by increasing crystal volume by hydration reaction, etc. have been developed.
このうち、膨張材としては、エトリンガイトの生成により膨張するカルシウムサルホアルミネ−ト系（ＣＳＡ系：特許文献２）、生石灰から水酸化カルシウムを生成する際の体積膨張を利用した石灰系（特許文献３）、両者の複合した系などが知られている。
しかしながら、従来の膨張材は、十分な収縮補償効果を得るには、硬化後十分な水分供給が必要であった。従って、水分供給を多くできない場合、例えば薄層で施工され、オープン環境に曝される場合、鏝塗り左官や吹付け施工のモルタル等においては、十分な収縮補償効果が得られなかった。
従って、本発明の課題は、水分供給量が少ない場合であっても十分な収縮補償効果と強度発現性が得られるセメント用膨張材を提供することにある。
However, in order to obtain a sufficient shrinkage compensation effect, the conventional expandable material needs a sufficient water supply after curing. Therefore, when the water supply cannot be increased, for example, when it is applied in a thin layer and exposed to an open environment, a sufficient shrinkage compensation effect cannot be obtained in plaster plastering or spraying mortar.
Accordingly, an object of the present invention is to provide an expansion material for cement that can provide a sufficient shrinkage compensation effect and strength development even when the amount of water supply is small.
そこで本発明者は、非晶質アルミノ珪酸塩に種々の成分を添加して、水分供給量の少ない系における膨張作用及び強度発現性について検討してきたところ、非晶質アルミノ珪酸塩、化工デンプン、無水石こう、アルカリ金属硫酸塩及び有機酸カルシウム塩を組み合せれば、水分の少ない施工の場合でも優れた収縮補償効果及び強度発現性が得られることを見出し、本発明を完成した。 Therefore, the present inventor has added various components to the amorphous aluminosilicate, and has studied the expansion action and strength development in a system with a small amount of water supply. As a result, the amorphous aluminosilicate, modified starch, The present inventors have found that when an anhydrous gypsum, an alkali metal sulfate and an organic acid calcium salt are combined, an excellent shrinkage compensation effect and strength development can be obtained even in the case of construction with little moisture.
すなわち、本発明は、（Ａ）粘土鉱物由来の非晶質アルミノ珪酸塩、（Ｂ）化工デンプン、（Ｃ）無水石こう、（Ｄ）アルカリ金属硫酸塩及び（Ｅ）式（ＲＣＯＯ）2Ｃａ（ここで、Ｒは水素原子又は炭素数１〜３のヒドロキシ基が置換していてもよいアルキル基を示す）で表される有機酸カルシウム塩を含有するセメント用膨張材組成物を提供するものである。
さらに本発明は、上記セメント用膨張材組成物、セメント及び骨材を含有するセメント系水硬性組成物を提供するものである。
That is, the present invention, (A) amorphous aluminosilicate from the clay mineral, (B) modified starch, (C) anhydrous gypsum, (D) an alkali metal sulfate and (E) formula (RCOO) 2 Ca ( Here, R represents a hydrogen atom or an alkyl group which may be substituted with a hydroxy group having 1 to 3 carbon atoms), and provides an expansion material composition for cement containing an organic acid calcium salt. is there.
Furthermore, this invention provides the cement-type hydraulic composition containing the said expansion | swelling material composition for cement, cement, and an aggregate.
本発明の膨張材組成物を用いれば、硬化後に十分な水分の供給ができる系だけでなく、水分供給量が少ない系、例えばコンクリートに比較して薄層で施工され、オープン環境に曝される、鏝塗り左官や吹付け施工のモルタルなどにおいて、優れた収縮補償効果及び強度発現性が得られる。
また、収縮補償効果のみならず、強度増進効果も優れているので、高強度混和材としての効果も有する。
If the expandable material composition of the present invention is used, not only a system that can supply sufficient water after curing, but also a system that has a low water supply amount, for example, a thin layer compared to concrete, is exposed to an open environment. Excellent shrinkage compensation effect and strength development can be obtained in plaster plaster and sprayed mortar.
Moreover, since not only the shrinkage compensation effect but also the strength enhancement effect is excellent, it also has an effect as a high strength admixture.
本発明のセメント用膨張材組成物に用いられる（Ａ）粘土鉱物由来の非晶質アルミノ珪酸塩（成分（Ａ））は、粘土鉱物に由来し、非晶質部分を含むアルミノ珪酸塩微粉末であれば特に限定されず、いずれも使用可能である。原料である粘土鉱物の例としては、（１）カオリン鉱物、（２）雲母粘土鉱物、（３）スメクタイト型鉱物、及びこれらが混合生成した混合層鉱物が挙げられる。本発明で用いる（Ａ）非晶質アルミノ珪酸塩は、これらの結晶性アルミノ珪酸塩粘土鉱物を、例えば焼成・脱水して非晶質化することにより得られる。これらのうち、反応性及び経済性の観点から、カオリン鉱物由来のものが好ましく、特にカオリナイトを焼成して得られるメタカオリンが最も好適である。 (A) Amorphous aluminosilicate derived from clay mineral (component (A)) used in the expansion material composition for cement of the present invention is a fine aluminosilicate powder derived from clay mineral and containing an amorphous portion. If it is, it will not specifically limit, Any can be used. Examples of the clay mineral as a raw material include (1) kaolin mineral, (2) mica clay mineral, (3) smectite type mineral, and mixed layer minerals produced by mixing these. The (A) amorphous aluminosilicate used in the present invention is obtained by making these crystalline aluminosilicate clay minerals amorphous by, for example, firing and dehydrating. Of these, those derived from kaolin minerals are preferred from the viewpoint of reactivity and economy, and metakaolin obtained by calcining kaolinite is most preferred.
（Ａ）非晶質アルミノ珪酸塩の平均粒子径は、反応性と分離抑制性の観点から、平均粒子径１０μｍ以下、特に５μｍ以下が好ましい。 (A) The average particle diameter of the amorphous aluminosilicate is preferably 10 μm or less, particularly preferably 5 μm or less, from the viewpoints of reactivity and separation inhibition.
本発明の膨張材組成物をセメント系水硬性組成物に加えて使用する際の成分（Ａ）配合量は、セメント１００重量部に対し、１〜３０重量部、特に２〜２０重量部が好ましい。成分（Ａ）の配合量が少なすぎると、収縮補償効果及び強度向上効果がほとんど得られず、一方配合量が多すぎると、短期強度発現性が悪くなり、また混練水量が増えることによる乾燥収縮の増大が問題となり、かつ経済的にも好ましくない。 The amount of the component (A) used when the expansion material composition of the present invention is added to a cement-based hydraulic composition is 1 to 30 parts by weight, particularly 2 to 20 parts by weight, based on 100 parts by weight of cement. . If the blending amount of the component (A) is too small, the shrinkage compensation effect and the strength improving effect are hardly obtained. The increase in the thickness becomes a problem and is not preferable economically.
本発明の膨張材組成物に用いられる（Ｂ）化工デンプン（成分（Ｂ））としては、デンプンに対し各種の化工を加えたものが使用できる。このような化工デンプンとしては、デンプンを構成する糖の水酸基に対し、カルボキシアルキル基、ヒドロキシアルキル基、各種アルキルアミン又は４級アルキルアンモニウム塩等を導入した、各種エーテル化デンプン；水酸基に対し、有機酸、無機酸、又はその塩類を反応させた、各種エステル化デンプン；水酸基間を架橋した各種架橋デンプン；各種有機高分子をグラフト重合したもの；デンプンの分解物であるデキストリン；アルファ化デンプン等が挙げられる。このうち、低水分条件下における収縮補償効果の点から、エーテル化デンプンが好ましい。 As the (B) modified starch (component (B)) used in the expandable material composition of the present invention, those obtained by adding various modifications to starch can be used. As such a modified starch, various etherified starches in which a carboxyalkyl group, a hydroxyalkyl group, various alkylamines or quaternary alkylammonium salts are introduced to the hydroxyl group of the sugar constituting the starch; Various esterified starches reacted with acids, inorganic acids, or salts thereof; various cross-linked starches cross-linked between hydroxyl groups; graft polymers of various organic polymers; dextrin that is a degradation product of starch; pregelatinized starch, etc. Can be mentioned. Of these, etherified starch is preferred from the viewpoint of shrinkage compensation effect under low moisture conditions.
本発明の膨張材組成物をセメント系水硬性組成物に加えて使用する際の成分（Ｂ）配合量は、セメント１００重量部に対し、０．０１〜０．５重量部、特に０．０２〜０．４重量部が好ましい。成分（Ｂ）の配合量が少なすぎると、収縮補償効果に与える影響が少なく、一方配合量が多すぎると凝結遅延効果が強すぎ、硬化が著しく遅れたり、強度発現性が悪くなったりしてしまう。 The amount of the component (B) used when the expansion material composition of the present invention is added to the cement-based hydraulic composition is 0.01 to 0.5 parts by weight, particularly 0.02 with respect to 100 parts by weight of cement. -0.4 weight part is preferable. If the blending amount of component (B) is too small, there will be little influence on the shrinkage compensation effect, while if too much blending amount, the setting retarding effect will be too strong, curing will be significantly delayed, and strength development will be poor. End up.
本発明の膨張材組成物に用いられる（Ｃ）無水石こうとしては、Ｉ型、ＩＩ型、ＩＩＩ型を問わないが、反応性と安定性からＩＩ型がより好ましい。
（Ｃ）無水石こうの粒度は、反応性と十分な収縮補償効果を得る点から、好ましくは４０００cm2／ｇ以上、特に６０００cm2／ｇ以上が好ましい。
The (C) anhydrous gypsum used in the expandable material composition of the present invention may be any of type I, type II and type III, but type II is more preferred from the viewpoint of reactivity and stability.
The particle size of (C) anhydrous gypsum, from the viewpoint of obtaining a reactivity and sufficient shrinkage compensation effect, preferably 4000 cm 2 / g or more, especially 6000 cm 2 / g or more.
本発明の膨張材組成物における成分（Ｃ）の配合量は、（Ａ）粘土鉱物由来の非晶質アルミノ珪酸塩１００重量部に対し、好ましくは２０〜２００重量部、特に３０〜１２０重量部が好ましい。成分（Ｃ）の配合量が少なすぎると、有効な収縮補償効果が得られず、一方、配合量が多すぎると著しい強度低下や膨張過多を引き起こす。 The blending amount of component (C) in the expansion material composition of the present invention is preferably 20 to 200 parts by weight, particularly 30 to 120 parts by weight, based on 100 parts by weight of the (A) clay mineral-derived amorphous aluminosilicate. Is preferred. If the blending amount of component (C) is too small, an effective shrinkage compensation effect cannot be obtained. On the other hand, if the blending amount is too large, a significant decrease in strength and excessive expansion are caused.
本発明の膨張材組成物に用いられる（Ｄ）アルカリ金属硫酸塩は、ナトリウム、カリウム、リチウム等のアルカリ金属の硫酸塩であれば特に限定されることはなく、例として硫酸ナトリウム（無水塩，１０水塩）、硫酸カリウム、硫酸リチウムが挙げられる。 The (D) alkali metal sulfate used in the expansion material composition of the present invention is not particularly limited as long as it is a sulfate of an alkali metal such as sodium, potassium, lithium, etc. As an example, sodium sulfate (anhydrous salt, 10 water salt), potassium sulfate, and lithium sulfate.
本発明の膨張材組成物における成分（Ｄ）の配合量は、（Ｃ）無水石こう１００重量部に対し、好ましくは１〜３０重量部、特に３〜１５重量部が好ましい。成分（Ｄ）の配合量が少なすぎると有効な収縮補償効果が得られず、一方、配合量が多すぎるとフレッシュ時の性状への影響が大きい。 The compounding amount of the component (D) in the expansion material composition of the present invention is preferably 1 to 30 parts by weight, particularly 3 to 15 parts by weight with respect to 100 parts by weight of (C) anhydrous gypsum. If the blending amount of the component (D) is too small, an effective shrinkage compensation effect cannot be obtained. On the other hand, if the blending amount is too large, the effect on the properties at the time of freshness is large.
本発明の膨張材組成物に用いられる有機酸カルシウム塩は、式（ＲＣＯＯ）2Ｃａで表される化合物である。ここでＲは、水素原子又は炭素数１〜３の水酸基が置換していてもよいアルキル基を示す。当該Ｒとしては、水素原子、メチル基、エチル基、１−ヒドロキシエチル基、ヒドロキシメチル基等が挙げられる。これら有機酸カルシウムのうち、ギ酸カルシウム、酢酸カルシウム及び乳酸カルシウムから選ばれる１種又は２種以上がより好ましく、特にギ酸カルシウムが特に好ましい。 The organic acid calcium salt used in the expansion material composition of the present invention is a compound represented by the formula (RCOO) 2 Ca. Here, R represents a hydrogen atom or an alkyl group which may be substituted by a hydroxyl group having 1 to 3 carbon atoms. Examples of R include a hydrogen atom, a methyl group, an ethyl group, a 1-hydroxyethyl group, and a hydroxymethyl group. Among these organic acid calciums, one or more selected from calcium formate, calcium acetate, and calcium lactate are more preferable, and calcium formate is particularly preferable.
本発明の膨張材組成物をセメント系水硬性組成物に加えて使用する際の成分（Ｅ）の配合量は、セメント１００重量部に対し、０．５〜５重量部、特に０．５〜３重量部が好ましい。成分（Ｅ）の配合量が少なすぎると収縮補償効果に与える影響が少なく、一方、配合量が多すぎるとフレッシュ時の性状への影響が大きく、また強度発現性が悪くなる。 The compounding amount of the component (E) when the expansion material composition of the present invention is used by adding it to the cement-based hydraulic composition is 0.5 to 5 parts by weight, particularly 0.5 to 5 parts by weight with respect to 100 parts by weight of cement. 3 parts by weight is preferred. If the blending amount of the component (E) is too small, the shrinkage compensation effect is small. On the other hand, if the blending amount is too large, the effect on the properties at the time of freshness is large, and the strength development is deteriorated.
本発明の膨張材組成物における各成分の配合量は、成分（Ａ）１００重量部に対し、成分（Ｂ）が０．２〜７重量部、（より好ましくは０．５〜５重量部）、成分（Ｃ）が１０〜１８０重量部（より好ましくは３０〜１５０重量部）、成分（Ｅ）が５〜４０重量部（より好ましくは１０〜３５重量部）が好ましい。また成分（Ｄ）は、成分（Ｃ）１００重量部に対し、１〜３０重量部（より好ましくは３〜１５重量部）が好ましい。 The compounding amount of each component in the expansion material composition of the present invention is such that component (B) is 0.2 to 7 parts by weight (more preferably 0.5 to 5 parts by weight) with respect to 100 parts by weight of component (A). The component (C) is preferably 10 to 180 parts by weight (more preferably 30 to 150 parts by weight), and the component (E) is preferably 5 to 40 parts by weight (more preferably 10 to 35 parts by weight). Component (D) is preferably 1 to 30 parts by weight (more preferably 3 to 15 parts by weight) with respect to 100 parts by weight of component (C).
本発明の膨張材組成物には、さらに、生石灰（硬焼、中焼、軟焼）、消石灰、促進剤、硬化遅延剤、増粘剤、繊維、収縮低減剤、スラグ、その他のポゾラン物質（フライアッシュ、シリカフューム等）、ポリマーディスパージョン（エマルション、粉末）等を配合してもよい。特に、生石灰、収縮低減剤、フライアッシュ、ポリマーディスパージョンの添加は、本発明の収縮補償効果を助長するものとして好ましい。 The expandable material composition of the present invention further includes quick lime (hard-fired, medium-fired, soft-fired), slaked lime, accelerator, curing retarder, thickener, fiber, shrinkage reducing agent, slag, and other pozzolanic substances ( Fly ash, silica fume, etc.), polymer dispersion (emulsion, powder), etc. may be blended. In particular, the addition of quicklime, shrinkage reducing agent, fly ash, and polymer dispersion is preferred as an aid to the shrinkage compensation effect of the present invention.
本発明の膨張材組成物は、モルタル、コンクリート等のセメント系水硬性組成物の膨張材として使用される。すなわち、モルタルやコンクリートの施工時にセメント系水硬性組成物に配合して施工される。 The expansion material composition of the present invention is used as an expansion material for cement-based hydraulic compositions such as mortar and concrete. That is, the mortar or concrete is mixed with the cement-based hydraulic composition during construction.
本発明で使用するセメントとしては、普通、早強、低熱等の各種ポルトランドセメント、これらポルトランドセメントに高炉スラグ、フライアッシュ、又はシリカを混合した各種混合セメント、並びに、シリカフュームを混合したシリカフュームセメント等一般に使用されるものが使用できる。 As the cement used in the present invention, various portland cements such as normal, early strength, low heat, etc., various mixed cements in which these portland cements are mixed with blast furnace slag, fly ash, or silica, and silica fume cements in which silica fume is mixed are generally used. What is used can be used.
本発明で使用する骨材としては、細骨材、粗骨材、又は、細骨材と粗骨材が使用でき、一般にモルタルやコンクリートに使用できるものであって、砂、砂利、砕石、及びスラグ等や、その他これに準じたものが使用できる。骨材の使用量は特に限定されるものではない。 As the aggregate used in the present invention, fine aggregate, coarse aggregate, or fine aggregate and coarse aggregate can be used, and can be generally used for mortar and concrete, and sand, gravel, crushed stone, and Slag, etc., and other equivalents can be used. The amount of aggregate used is not particularly limited.
本発明の膨張材組成物は、水分供給量の少ない系においても優れた収縮補償効果及び強度発現性を有するので、通常のモルタルやコンクリートの施工に加えて、鏝塗り左官や吹付け施工のモルタルなどにおいて特に良好に使用できる。 The expansion material composition of the present invention has an excellent shrinkage compensation effect and strength development even in a system with a small amount of water supply. In addition to normal mortar and concrete construction, mortar for plastering plastering and spraying construction Can be used particularly well.
次に実施例を挙げて本発明をさらに詳細に説明するが、本発明は何らこれに制限されるものではない。 EXAMPLES Next, although an Example is given and this invention is demonstrated further in detail, this invention is not restrict | limited to this at all.
実施例１〜７及び比較例１〜９
表１及び表２記載の粉体及び液体を用いて、モルタル又はコンクリートを製造し、下記方法により長さ変化率、圧縮強度及び付着強度を試験した。その結果を、表１及び表２に併せて示す。
（原料）
化工デンプン：ＢＡＳＦポゾリス社 Ｓｔａｒｖｉｓ ＳＥ ３５Ｆ（スターチエーテル）
メタカオリン：Ｅｎｇｅｌｈａｒｄ社 ＭｅｔａＭａｘ ＨＲＭ
無水石こう： セントラル硝子社 ブレーン比表面積 ７０００cm2／ｇに調整
無水硫酸ナトリウム：関東化学社 １級試薬
硫酸カリウム：関東化学社 １級試薬
ギ酸カルシウム：日本合成化学工業社 セルベストアクセラレーター社
珪砂：愛知県三河産 ＦＭ １．８
硬焼生石灰：奥多摩工業社 ブレーン比表面積 ４０００cm2／ｇに調整
フライアッシュ：太平洋セメント社 スーパーフロー
収縮低減剤：太平洋マテリアル社 テトラガードＰＷ
粉末樹脂：日本合成化学工業社 ＬＤＭ−７０００Ｐ
ポリマーエマルション：太平洋マテリアル社 ＴＭポリマーセメント混和材Ａ（オールアクリル重合）（固形分２３％）
Examples 1-7 and Comparative Examples 1-9
Mortar or concrete was manufactured using the powder and liquid of Table 1 and Table 2, and the length change rate, the compressive strength, and the adhesive strength were tested by the following method. The results are also shown in Table 1 and Table 2.
(material)
Chemical starch: BASF Pozzolith Starvis SE 35F (starch ether)
Metakaolin: Engelhard's MetaMax HRM
Anhydrous gypsum: Central Glass Co., Ltd. Adjusted to Blaine specific surface area of 7000 cm 2 / g Anhydrous sodium sulfate: Kanto Chemical Co., Ltd. First grade reagent Potassium sulfate: Kanto Chemical Co., Ltd. First grade reagent Calcium formate: Nippon Synthetic Chemical Industry Co., Ltd. Prefecture Mikawa FM 1.8
Hard calcined lime: Okutama Kogyo Co., Ltd. Adjusted to a brain specific surface area of 4000 cm 2 / g Fly ash: Taiheiyo Cement Superflow Shrinkage reducing agent: Taiheiyo Materials Co., Ltd. Tetragard PW
Powder resin: Nippon Synthetic Chemical Industry Co., Ltd. LDM-7000P
Polymer emulsion: Taiheiyo Materials Co., Ltd. TM polymer cement admixture A (all acrylic polymerization) (solid content 23%)
（方法）
長さ変化率： ＮＳＫＳ−００２に基づき試験。２８日で−０．０７０％以上を合格とした。
圧縮強度：ＪＨＳ−４１６に基づき試験。２８日で５０Ｎ／mm2以上を合格とした。
付着強度：３００×３００×６０mmのコンクリート歩道板に、１０mm厚で塗付け、各材齢で４０×４０mmの方形に切り込みを入れた後鋼製アタッチメントを貼り付け、建研式接着力試験器で試験を行った。２８日で２．０Ｎ／mm2以上を合格とした。
(Method)
Length change rate: Tested based on NSKS-002. In 28 days, -0.070% or more was accepted.
Compressive strength: Test based on JHS-416. In 28 days, 50 N / mm 2 or more was accepted.
Adhesion strength: It is applied to a concrete sidewalk board of 300 x 300 x 60 mm with a thickness of 10 mm, cut into a 40 x 40 mm square at each age, and then a steel attachment is applied. A test was conducted. In 28 days, 2.0 N / mm 2 or more was considered acceptable.
表１及び表２から明らかなように、本発明の成分（Ａ）〜（Ｅ）を配合した膨張材組成物を配合してモルタル又はコンクリートを硬化させた場合、水分供給量が少なくても優れた収縮補償効果が得られ、優れた強度促進効果も得られる。 As is clear from Tables 1 and 2, when the mortar or concrete is cured by blending the expansion material composition blended with the components (A) to (E) of the present invention, it is excellent even when the amount of water supply is small. A shrinkage compensation effect is obtained, and an excellent strength promoting effect is also obtained.
Claims (5)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012140295A (en) * | 2010-12-28 | 2012-07-26 | Taiheiyo Materials Corp | Early expansive cement composition |
| KR101284500B1 (en) | 2011-08-22 | 2013-07-23 | 이케이소재(주) | A composite of expansive materials for crack prevention of cementitious materials by using of waste fly ash |
| JP2014122129A (en) * | 2012-12-21 | 2014-07-03 | Taiheiyo Material Kk | Hydraulic composition |
| JP2014122128A (en) * | 2012-12-21 | 2014-07-03 | Taiheiyo Material Kk | Elastic coating composition for coating concrete |
| JP2020164334A (en) * | 2019-03-28 | 2020-10-08 | 太平洋マテリアル株式会社 | Grout composition, and grout |
| CN113387618A (en) * | 2021-07-16 | 2021-09-14 | 广东汇美淀粉科技有限公司 | Starch suspension for bonding of paper-surface gypsum board protective paper and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001048617A (en) * | 1999-08-05 | 2001-02-20 | Denki Kagaku Kogyo Kk | Cement admixture and cement composition |
| JP2001048615A (en) * | 1999-08-13 | 2001-02-20 | Onoda Co | Cement admixture and cement composition using the same |
| JP2007161507A (en) * | 2005-12-12 | 2007-06-28 | Taiheiyo Material Kk | Highly durable cross-section repairing material |
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2008
- 2008-12-25 JP JP2008330168A patent/JP5155846B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001048617A (en) * | 1999-08-05 | 2001-02-20 | Denki Kagaku Kogyo Kk | Cement admixture and cement composition |
| JP2001048615A (en) * | 1999-08-13 | 2001-02-20 | Onoda Co | Cement admixture and cement composition using the same |
| JP2007161507A (en) * | 2005-12-12 | 2007-06-28 | Taiheiyo Material Kk | Highly durable cross-section repairing material |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012140295A (en) * | 2010-12-28 | 2012-07-26 | Taiheiyo Materials Corp | Early expansive cement composition |
| KR101284500B1 (en) | 2011-08-22 | 2013-07-23 | 이케이소재(주) | A composite of expansive materials for crack prevention of cementitious materials by using of waste fly ash |
| JP2014122129A (en) * | 2012-12-21 | 2014-07-03 | Taiheiyo Material Kk | Hydraulic composition |
| JP2014122128A (en) * | 2012-12-21 | 2014-07-03 | Taiheiyo Material Kk | Elastic coating composition for coating concrete |
| JP2020164334A (en) * | 2019-03-28 | 2020-10-08 | 太平洋マテリアル株式会社 | Grout composition, and grout |
| JP7150405B2 (en) | 2019-03-28 | 2022-10-11 | 太平洋マテリアル株式会社 | Grout composition and grout |
| CN113387618A (en) * | 2021-07-16 | 2021-09-14 | 广东汇美淀粉科技有限公司 | Starch suspension for bonding of paper-surface gypsum board protective paper and preparation method thereof |
| CN113387618B (en) * | 2021-07-16 | 2021-12-28 | 广东汇美淀粉科技有限公司 | Starch suspension for bonding of paper-surface gypsum board protective paper and preparation method thereof |
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