| 摘要 |
<p>PURPOSE: A method for manufacturing cement composition using steelmaking/ironmaking dust and inorganic sludge is provided to recycling waste sources which would otherwise be discarded, causing soil contamination. CONSTITUTION: The cement is produced by (i) after blending 90wt.% of limestone and 6wt.% of sludge with a moisture content of 60 to 85%, heating the mixture at 200deg.C to 20-30% of moisture content; (ii) blending the mixture with 2wt.% of iron oxides and 2wt.% of clay; (iii) after pulverization of the mixture, 1st heat treating at about 800deg.C, 2nd heat treating in the temperature range 1450 to 1500deg.C.</p> |
