ACID PROOF MORTAR COMPOSITION FOR REPAIR AND CONSTRUCTING METHOD OF THE SAME

PURPOSE: Mortar composition with an improved acid resistance and a construction method thereof are provided to enhance a sulfate resistance and secure stability of concrete structures by controlling transition of calcium aluminate cement. CONSTITUTION: Mortar composition with an improved acid resist...

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1. Verfasser: GIM, SANG UN
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:PURPOSE: Mortar composition with an improved acid resistance and a construction method thereof are provided to enhance a sulfate resistance and secure stability of concrete structures by controlling transition of calcium aluminate cement. CONSTITUTION: Mortar composition with an improved acid resistance comprises 30-40 weight% of calcium aluminate cement, 15-25 weight% of mineral wool, 40-50 weight% of silicon oxide, 0.1-2 weight% of sodium naphthalene formaldehyde, 0.1-2 weight% of hydroxyl ethyl cellulose, and 0.1-2 weight% of acrylic polymer. The mineral wool comprises 35-47 weight% of SiO2, 31-40 weight% of calcium oxide, 10-18 weight% of aluminum oxide, 1-12 weight% of iron(III) oxide, 2-10 weight% of magnesium oxide, 2-4 weight% of sodium oxide, and 2-4 weight% of potassium oxide. A specific surface area of the mineral wool is 3000-4000square centimeters/gram and a fiber thickness thereof is 5-10micro meters.