CEMENT MIXTURES FOR ANTIEFFLORESCENCE
PURPOSE: A concrete blushing prevention environmentally friendly mixed cement composition is provided to use the reaction mechanism between cement and a mineral admixture, and a functional additive for controlling the reduction of Ca(OH)2 production amount and the elution of Ca(OH)2. CONSTITUTION: A...
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Main Authors | , , , |
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Format | Patent |
Language | English Korean |
Published |
02.09.2013
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Subjects | |
Online Access | Get full text |
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Summary: | PURPOSE: A concrete blushing prevention environmentally friendly mixed cement composition is provided to use the reaction mechanism between cement and a mineral admixture, and a functional additive for controlling the reduction of Ca(OH)2 production amount and the elution of Ca(OH)2. CONSTITUTION: A concrete blushing prevention environmentally friendly mixed cement composition contains 30-60 wt% of Portland cement, 30-50 wt% of blast furnace slag micro-powder, 5-20 wt% of fly ash, 4-10 wt% of sulphate, and 1-5 wt% of revival state polymer powder resin. The sulphate is selected from a group consisting of calcium sulfate (CaSO4), potassium sulfate (K2SO4), and sodium sulfate (Na2SO4). The revival state polymer powder resin is selected from a group consisting of an ethylene vinyl acetate copolymer resin, styrene-butadiene synthetic rubber, and an acryl group copolymer resin. [Reference numerals] (AA) Example 1; (BB) Comparative example 1; (CC) Comparative example 3; (DD) Comparative example 5 |
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Bibliography: | Application Number: KR20120018702 |