| 钢渣的机械力粉磨特性 |
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| 引用本文： | 崔孝炜,狄燕清,南宁.钢渣的机械力粉磨特性[J].矿产保护与利用,2017,0(5):77-81. |
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| 作者姓名： | 崔孝炜 狄燕清 南宁 |
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| 作者单位： | 1.商洛学院 化学工程与现代材料学院，陕西 商洛 726000 |
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| 基金项目： | 陕西省自然科学基金2017JM5125陕西省教育厅重点项目17JS037 |
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| 摘 要： | 研究了粉磨时间对钢渣粉比表面积的影响，并通过激光粒度仪（LPS）、X射线衍射仪（XRD）对钢渣粉的粒度分布特征和颗粒形貌进行了探讨，并研究了不同粉磨时间钢渣粉对混凝土抗压强度的影响。结果表明:钢渣的易磨性较差；随着粉磨时间增加，超细颗粒数量不断增加，掺钢渣粉混凝土的强度也逐渐提高，但是粉磨成本也相应增加。钢渣粉较为合适的粉磨时间为90 min，此时比表面积为650 m2/kg。
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| 关 键 词： | 钢渣 易磨性 粒度分布 混凝土 |
| 收稿时间： | 2017-05-23 |
Grinding Characteristics of Steel Slag |
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| Affiliation: | 1.College of Chemical Engineering and Modern Materials, Shangluo University, Shangluo 726000, China2.Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo 726000, China |
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| Abstract: | The influence of grinding time on specific surface area of steel slag powder was studied in this paper. The particle size distribution and particle morphology were investigated by laser particle sizer (LPS), X-ray diffraction (XRD). And the influence of steel slag powder ground with different time on compressive strength of concrete was studied. The results showed that the grindability of steel slag was poor. With the increase of grinding time, the proportion of micro particles in the steel slag powder was gradually increased and the compressive strength of concrete also gradually improved. Accordingly, the grinding cost also increased. The suitable grinding time of steel slag powder was 90 min, and the specific surface area could reach to 650 m2/kg. |
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