SOLIDIFICATION ADJUSTING SURFACE MODIFIER FOR CONCRETE

To provide a solidification adjusting surface modifier for concrete that delays a solidification starting time under high environmental temperatures such as a summer season and can suppress bleeding.SOLUTION: The present invention relates to a solidification adjusting surface modifier for concrete t...

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Bibliographische Detailangaben
Hauptverfasser:	AIZAWA KAZUHIRO, ITO SHINYA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	To provide a solidification adjusting surface modifier for concrete that delays a solidification starting time under high environmental temperatures such as a summer season and can suppress bleeding.SOLUTION: The present invention relates to a solidification adjusting surface modifier for concrete that contains at least one kind of hydroxy-carboxylic acid or salt thereof selected from the group consisting of hydroxy-carboxylic acids excepting a gluconic acid and at least one kind of sulfate selected from the group consisting of an aluminum sulfate and potassium alum, and has a residue on a 300 μm sieve of 5 to 60 mass%.SELECTED DRAWING: None 【課題】夏場等の高い環境温度下において、凝結始発時間を遅延させるとともに、ブリーディングも抑制できるコンクリート用凝結調整表面改質剤を提供する。【解決手段】グルコン酸を除くオキシカルボン酸からなる群から選択される少なくとも１種のオキシカルボン酸又はその塩と、硫酸アルミニウム及びカリウムミョウバンからなる群から選択される少なくとも１種の硫酸塩とを含有し、３００μｍ篩残分が５～６０質量％である、コンクリート用凝結調整表面改質剤である。【選択図】なし