ADMIXTURE FOR HYDRAULIC COMPOSITION

To provide an admixture for a hydraulic composition with high high-temperature suitability without needing an additive.SOLUTION: The admixture for a hydraulic composition satisfies the following conditions (A)-(C). The condition (A): the composition includes a polycarboxylic acid-based copolymer. Th...

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Bibliographische Detailangaben
Hauptverfasser:	NISHI SUKEYOSHI, YAMAGUCHI TAKASHI, INOSE RYO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS REFRACTORIES SLAG THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	To provide an admixture for a hydraulic composition with high high-temperature suitability without needing an additive.SOLUTION: The admixture for a hydraulic composition satisfies the following conditions (A)-(C). The condition (A): the composition includes a polycarboxylic acid-based copolymer. The condition (B): the contact angle of the admixture for a hydraulic composition measured for an aqueous solution with a solid content concentration of 30% in accordance with JIS-R-3257 is 80° or under. The condition (C): the glass-transition temperature (Tg) of the admixture for a hydraulic composition is 35°C or over.SELECTED DRAWING: None 【課題】本発明によれば、添加剤を要せずに、高温適性の高い水硬性組成物用混和剤を提供することを課題とする。【解決手段】下記条件（Ａ）〜（Ｃ）を満たす、水硬性組成物用混和剤。条件（Ａ）：ポリカルボン酸系共重合体を含むこと。条件（Ｂ）：該水硬性組成物用混和剤の固形分濃度３０％水溶液における、ＪＩＳ−Ｒ−３２５７に準拠し測定される接触角度が、８０°以下であること。条件（Ｃ）：水硬性組成物用混和剤の、ガラス転移温度（Ｔｇ）が、３５℃以上であること。【選択図】なし