| 摘要 |
<p>PURPOSE: A method for producing cement with paper sludge is provided to cut production cost of cement and prevent environmental pollution by using a large amount of paper sludge generated during paper production as materials of cement. CONSTITUTION: Paper sludge as a clayish material which is supplied from a paper factory is mixed with other materials including calcareous materials. The mixture is grinded to below the size of 100micrometer. Then, the grinded mixture is heated at a maximum temperature of 1500deg.C to generate clinker, an intermediate of cement. Plaster, an additive, is added to the clinker, which is minutely grinded to produce final product, cement. Additionally, this recycling of paper sludge can diminish disposal cost of wastes and contribute to the preservation of the environment.</p> |
