PURPOSE: A blast furnace slag micro powder composition with improved activity is provided to remarkably improve early strength and activity of concrete by adding desulfurization slag to the blast furnace slag in a specific ratio. CONSTITUTION: A blast furnace slag micro powder composition with improved activity comprises 70-99.9 parts by weight of ground granulated blast-furnace slag and 0.1-30 parts by weight of desulphurizer slag. The ground granulated blast-furnace slag has fineness of 2,700-10,000cm^2/g. The blast furnace slag comprises 20-40 weight% of SiO2, 0-2 weight% of Al2O3, 5-17 weight% of Fe2O3, 20-40 weight% of CaO, 5-17 weight% of MgO, 0-5 weight% of MnO, 0-2 weight% of SO3. The desulphurizer slag comprises 40-70 weight% of CaO, 10-30 weight% of SiO2, 5-20 weight% of Al2O3, 1-15 weight% of MgO, 0.5-30 weight% of T-Fe, and 0.1-20 weight% of SO3.
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机译：目的：提供一种具有改善活性的高炉矿渣微粉组合物，通过以特定比例向高炉矿渣中添加脱硫炉渣，从而显着提高混凝土的早期强度和活性。组成：具有改善的活性的高炉矿渣微粉组合物包含70-99.9重量份的粉碎的粒状高炉矿渣和0.1-30重量份的脱硫渣。研磨的粒状高炉矿渣的细度为2,700-10,000cm ^ 2 / g。高炉炉渣包括20-40重量％的SiO 2，0-2重量％的Al 2 O 3，5-17重量％的Fe 2 O 3，20-40重量％的CaO，5-17重量％的MgO，0-5重量％。 MnO含量为0-2％（重量）的SO3。脱硫炉渣包含40-70重量％的CaO，10-30重量％的SiO2、5-20重量％的Al2O3、1-15重量％的MgO，0.5-30重量％的T-Fe和0.1-20重量％ SO3的重量％。
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