Relationship between polymerization degree and cementitious activity of iron ore tailings

Zhong-lai Yi, Heng-hu Sun, Chao Li, Yin-ming Sun, Yu Li

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    Zhong-lai Yi, Heng-hu Sun, Chao Li, Yin-ming Sun, and Yu Li, Relationship between polymerization degree and cementitious activity of iron ore tailings, Int. J. Miner. Metall. Mater., 17(2010), No. 1, pp.116-120. https://dx.doi.org/10.1007/s12613-010-0120-3
    Zhong-lai Yi, Heng-hu Sun, Chao Li, Yin-ming Sun, and Yu Li, Relationship between polymerization degree and cementitious activity of iron ore tailings, Int. J. Miner. Metall. Mater., 17(2010), No. 1, pp.116-120. https://dx.doi.org/10.1007/s12613-010-0120-3
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    Relationship between polymerization degree and cementitious activity of iron ore tailings

    • Railway Engineering Reasearch Institute, China Academy of Railway Science, Beijing, 100081, China

    • Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China

    基金项目: 

    This work was financially supported by the National Natural Science Foundation of China (No.50674062), the Key Project of the Ministry of Railway of China (No.2008G031-N), and the Postdoctoral Science Foundation (No.20070420354).

      通信作者:

      Zhong-lai Yi E-mail: yizhonglai@rails.com.cn

    中文摘要

    The aim of this study is to understand the relationship between the polymerization degree and cementitious activity of iron ore tailings. In light of the poor usage of iron ore tailings, stockpile samples from Tangshan were studied in terms of their ability to become cementitious materials. Compound thermal activation was used to improve the cementitious properties of the tailings, while analyzing methods, such as X-ray diffraction (XRD), infrared spectroscopy (IR), nuclear magnetic resonance (NMR), and X-ray photoelectron spectrometer (XPS), were employed to study the changes in phase and structure under different activation conditions. The results reveal clear relationships between the binding energies of Si2p and O1s, polymerization degree, and cementitious activity of iron ore tailings.

     

    Relationship between polymerization degree and cementitious activity of iron ore tailings

    Author Affilications

      • Railway Engineering Reasearch Institute, China Academy of Railway Science, Beijing, 100081, China

      • Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China

    • Funds: 

      This work was financially supported by the National Natural Science Foundation of China (No.50674062), the Key Project of the Ministry of Railway of China (No.2008G031-N), and the Postdoctoral Science Foundation (No.20070420354).

    • Received: 29 December 2008; Revised: 14 February 2009; Accepted: 25 February 2009;
    The aim of this study is to understand the relationship between the polymerization degree and cementitious activity of iron ore tailings. In light of the poor usage of iron ore tailings, stockpile samples from Tangshan were studied in terms of their ability to become cementitious materials. Compound thermal activation was used to improve the cementitious properties of the tailings, while analyzing methods, such as X-ray diffraction (XRD), infrared spectroscopy (IR), nuclear magnetic resonance (NMR), and X-ray photoelectron spectrometer (XPS), were employed to study the changes in phase and structure under different activation conditions. The results reveal clear relationships between the binding energies of Si2p and O1s, polymerization degree, and cementitious activity of iron ore tailings.

     

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