A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GROUT COMPOSITION
To provide a grout composition that has excellent flow characteristics and has high separation resistance without using a special admixture and thickener.SOLUTION: This invention relates to a grout composition containing a specific admixture and formed by using portland cement and/or blended cement as a binder. The grout composition is a water-soluble vinyl copolymer having an average molecular weight of 1,000-500,000, comprising: water and a binder, the mass ratio of water/binder being 18-62%; a constitutional unit L of 50-95 mass% based on 100 pts.mass of the binder, the unit L being shown by R1-O-(AO)n-R2 (R1: a 3C or 4C unsaturated acyl group, or a 2-5C alkenyl group, R2: hydrogen atom or a 1-8C alkyl group, AO: a 2-4C oxyalkylene group, n: the number of 5-200); and a constitutional unit M of 50-5 mass% based on 100 pts.mass of the binder, the unit M comprising a (meth)acrylic acid or its salt.SELECTED DRAWING: None
【課題】優れた流動特性を有し、且つ特殊な混和材や増粘剤を用いることなく、高い分離抵抗性を有するグラウト組成物を提供する。【解決手段】特定の混和剤を含有し、結合材にポルトランドセメント及び／又は混合セメントを使用してなるグラウト組成物であって、水／結合材の質量比が１８〜６２％、且つ結合材１００質量部に対し、Ｒ１−Ｏ−（ＡＯ）ｎ−Ｒ２（Ｒ１：炭素数３若しくは４の不飽和アシル基、又は炭素数２〜５のアルケニル基、Ｒ２：水素原子または炭素数１〜８のアルキル基、ＡＯ：炭素数２〜４のオキシアルキレン基、ｎ：５〜２００の数）で示される構成単位Ｌを５０〜９５質量％及び(メタ)アクリル酸／及びその塩から構成された構成単位Ｍを５０〜５質量％の割合で有する質量平均分子量１０００〜５０００００の水溶性ビニル共重合体。【選択図】なし
GROUT COMPOSITION
To provide a grout composition that has excellent flow characteristics and has high separation resistance without using a special admixture and thickener.SOLUTION: This invention relates to a grout composition containing a specific admixture and formed by using portland cement and/or blended cement as a binder. The grout composition is a water-soluble vinyl copolymer having an average molecular weight of 1,000-500,000, comprising: water and a binder, the mass ratio of water/binder being 18-62%; a constitutional unit L of 50-95 mass% based on 100 pts.mass of the binder, the unit L being shown by R1-O-(AO)n-R2 (R1: a 3C or 4C unsaturated acyl group, or a 2-5C alkenyl group, R2: hydrogen atom or a 1-8C alkyl group, AO: a 2-4C oxyalkylene group, n: the number of 5-200); and a constitutional unit M of 50-5 mass% based on 100 pts.mass of the binder, the unit M comprising a (meth)acrylic acid or its salt.SELECTED DRAWING: None
【課題】優れた流動特性を有し、且つ特殊な混和材や増粘剤を用いることなく、高い分離抵抗性を有するグラウト組成物を提供する。【解決手段】特定の混和剤を含有し、結合材にポルトランドセメント及び／又は混合セメントを使用してなるグラウト組成物であって、水／結合材の質量比が１８〜６２％、且つ結合材１００質量部に対し、Ｒ１−Ｏ−（ＡＯ）ｎ−Ｒ２（Ｒ１：炭素数３若しくは４の不飽和アシル基、又は炭素数２〜５のアルケニル基、Ｒ２：水素原子または炭素数１〜８のアルキル基、ＡＯ：炭素数２〜４のオキシアルキレン基、ｎ：５〜２００の数）で示される構成単位Ｌを５０〜９５質量％及び(メタ)アクリル酸／及びその塩から構成された構成単位Ｍを５０〜５質量％の割合で有する質量平均分子量１０００〜５０００００の水溶性ビニル共重合体。【選択図】なし
GROUT COMPOSITION
グラウト組成物
SUGANUMA YUKI (author) / TAMAKI SHINJI (author)
2019-06-06
Patent
Electronic Resource
Japanese
DISPERSANT FOR PC GROUT, COMPOSITION FOR PC GROUT, AND PC GROUT MATERIAL
| European Patent Office | 2020