A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CEMENT COMPOSITION, MORTAR COMPOSITION, AND METHOD FOR REPAIRING CONCRETE STRUCTURES
To provide a cement composition and a mortar composition which can improve viscosity while imparting flowability.SOLUTION: The cement composition according to the present invention comprises a cement-containing binder, calcium carbonate, and a water-reducing agent, wherein the water-reducing agent comprises a polycarboxylic acid-based copolymer comprising the following structural unit (1) and the following structural unit (2), and a mass ratio of the calcium carbonate to the polycarboxylic acid-based copolymer is 1.0 or more and 14.0 or less. Structural unit (1): a structural unit formed from one or two or more selected from monomers represented by the following formula (1). Structural unit (2): a structural unit formed from one or two or more selected from (meth)acrylic acid and/or salts thereof.SELECTED DRAWING: None
【課題】流動性を付与すると共に、粘性を向上させることが可能なセメント組成物、及び、モルタル組成物を提供することを課題とする。【解決手段】本発明に係るセメント組成物は、セメントを含む結合材と、炭酸カルシウムと、減水剤と、を含み、前記減水剤が、下記構成単位（１）、及び、下記構成単位（２）を含むポリカルボン酸系共重合体を含み、前記炭酸カルシウムと前記ポリカルボン酸系共重合体との質量比が、１．０以上１４．０以下である。構成単位（１）：下記式（１）で示される単量体から選ばれる一つ又は二つ以上から形成される構成単位構成単位（２）：（メタ）アクリル酸及び／又はその塩から選ばれる一つ又は二つ以上から形成される構成単位JPEG2024140515000008.jpg38170【選択図】なし
CEMENT COMPOSITION, MORTAR COMPOSITION, AND METHOD FOR REPAIRING CONCRETE STRUCTURES
To provide a cement composition and a mortar composition which can improve viscosity while imparting flowability.SOLUTION: The cement composition according to the present invention comprises a cement-containing binder, calcium carbonate, and a water-reducing agent, wherein the water-reducing agent comprises a polycarboxylic acid-based copolymer comprising the following structural unit (1) and the following structural unit (2), and a mass ratio of the calcium carbonate to the polycarboxylic acid-based copolymer is 1.0 or more and 14.0 or less. Structural unit (1): a structural unit formed from one or two or more selected from monomers represented by the following formula (1). Structural unit (2): a structural unit formed from one or two or more selected from (meth)acrylic acid and/or salts thereof.SELECTED DRAWING: None
【課題】流動性を付与すると共に、粘性を向上させることが可能なセメント組成物、及び、モルタル組成物を提供することを課題とする。【解決手段】本発明に係るセメント組成物は、セメントを含む結合材と、炭酸カルシウムと、減水剤と、を含み、前記減水剤が、下記構成単位（１）、及び、下記構成単位（２）を含むポリカルボン酸系共重合体を含み、前記炭酸カルシウムと前記ポリカルボン酸系共重合体との質量比が、１．０以上１４．０以下である。構成単位（１）：下記式（１）で示される単量体から選ばれる一つ又は二つ以上から形成される構成単位構成単位（２）：（メタ）アクリル酸及び／又はその塩から選ばれる一つ又は二つ以上から形成される構成単位JPEG2024140515000008.jpg38170【選択図】なし
CEMENT COMPOSITION, MORTAR COMPOSITION, AND METHOD FOR REPAIRING CONCRETE STRUCTURES
セメント組成物、モルタル組成物、及び、コンクリート構造物の補修方法
YAMAMOTO MAKOTO (author) / TATSUMI TAICHI (author) / YOSHIZAWA CHIAKI (author) / WATASE HIROSHI (author) / SHOJI AKIO (author) / TAKAHASHI KENICHI (author) / OKADA KAZUHISA (author)
2024-10-10
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
Cement mortar composition and method for repairing concrete structure using the composition
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