| 利用城市污水处理厂污泥生产生态水泥 |
| 摘要点击 7820 全文点击 3164 投稿时间：2010-02-03 修订日期：2010-05-11 |
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| 中文关键词 城市污泥 生态水泥 熟料 强度 粒度 重金属 |
| 英文关键词 municipal sewage eco-cement clinker mortar strength particle-size heavy metal |
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| 中文摘要 |
| 使用城市生活污水处理厂污泥作为水泥熟料煅烧过程中的添加剂，并以生产标号为P.O42.5的普通硅酸盐水泥作对比，研究了向单位生料掺入污泥量（质量分数）为0%、 0.50%、 1.00%、 1.50%、 2.00%和2.50%时生产出水泥样品的性能.对水泥熟料XRD、 显微结构、 生料和熟料的粒度分析、 物质变化以及水泥的凝结时间、 比表面积、 胶砂强度和浸出毒性试验的研究结果表明，制备的水泥样品强度与P.O42.5水泥标样基本一致，且随着污泥掺入量的增加，生料和熟料中的Al、 Fe、 Ba、 Mn和Ti元素的含量呈减少趋势，水泥的凝结时间增长，3 d强度受到影响并降低，但在7 d后基本恢复，而且强度较高. |
| 英文摘要 |
| The aim of this paper was to study the effect on cement property by using of municipal sewage as additive in the process of clinker burning. Based on the standard sample P.O42.5 from cement plant, the properties of eco-cement samples adding municipal sewage to unit raw material by 0%, 0.50%, 1.00%, 1.50%, 2.00%, 2.50% respectively and the standard sample from the cement plant were compared. According to the analysis of X-ray diffraction, microstructure, the particles size determination material change, the setting time, specific surface area, leaching toxicity and strength of cement mortar of the cement, respectively, it showed that the strength of the productions were similar to the P.O42.5 standard sample. The metal ion concentrations of Al, Fe, Ba, Mn and Ti in clinkers and raw material decreased, the initial and setting time increased, as well as the strength of the paste within the curing time of 3 days decreased with the increase of municipal sewage ratio. However, after the curing of 7 days, the strength was similar to non-sludge-mortar or even higher. |
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