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金属矿山 ›› 2012, Vol. 41 ›› Issue (03): 158-162.

• 综合利用 • 上一篇    下一篇

钢渣制备高强度人工鱼礁混凝土

李琳琳1,2,李晓阳3,苏兴文3,倪文1,2,王中杰1,2   

  1. 1.北京科技大学土木与环境工程学院;2.金属矿山高效开采与安全教育部重点实验室;3.鞍钢集团矿渣开发公司
  • 出版日期:2012-03-27 发布日期:2012-04-18
  • 基金资助:

    * 国家海洋局海洋公益性行业科研专项经费重点项目(编号:200805030)。

High Strength Artifical Reefs Concrete Made from Steel Slags

Li Linlin1,2,Li Xiaoyang3,Su Xingwen3,Ni Wen1,2,Wang Zhongjie1,2   

  1. 1.Civil and Environmental Engineering Institute, University of Science and Technology Beijing;2.Key Laboratory of High-Efficient Mining and Safety of Metal Mines (Ministry of Education of China);3. Slag Utilization Company of Anshan iron and Steel Group corporation
  • Online:2012-03-27 Published:2012-04-18

摘要: 以79%的矿渣、15%的钢尾渣、5%的脱硫石膏以及1%的水泥熟料制备的胶凝材料代替水泥,以热闷法稳定化的钢尾渣为骨料,制备出了强度达到61 MPa的人工鱼礁混凝土。在该混凝土中,水泥熟料所占比例为0.16%,钢渣比例超过了99%。利用XRD和SEM方法分析净浆的水化过程,结果表明,体系水化主要生成AFt相和C-S-H凝胶,并对强度的增长起了主要作用。

关键词: 钢尾渣, 胶凝材料, 人工鱼礁混凝土

Abstract: 79% granulated high furnace slag and 15% steel slag and 5% flue gas desulphurization ( FGD ) gypsum was mixed with 1% cement clinker to produce a cementitious material.The ordinary portland cement can be totally substituted by such a mixed cementitious material with iron and steel slags as its major components in preparing the concrete for building high-strength artificial reefs.A concrete with a compressive strengh of 61 MPa can be prepared by using such a mixture as a cementitious material and steel slag grains as its fine and coarse aggregats which have been stubilized by a hot-simmering method. The cement clinker content of the concrete was 0.16%, and solid waste ratio reached over 99%. Hydration processes of net slurry were analysized by XRD and SEM methods.The results show that the early hydration products in the system are mainly AFt and C-S-H gel.The strength growth is mainly contributed by these two phases.

Key words: Steel slags, Cementitious material, Artifical reefs concrete