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Volume 40 Issue 2
Apr.  2022
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Article Navigation >  ENVIRONMENTAL ENGINEERING  > 2022  >  40(2): 235-239
HAN Meng, ZHANG Liangliang, LU Zhongfei, SUN Jian. COMPARATIVE ANALYSIS OF EVALUATION METHODS FOR STEEL SLAG SOUNDNESS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(2): 235-239. doi: 10.13205/j.hjgc.202202034
Citation: HAN Meng, ZHANG Liangliang, LU Zhongfei, SUN Jian. COMPARATIVE ANALYSIS OF EVALUATION METHODS FOR STEEL SLAG SOUNDNESS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(2): 235-239. doi: 10.13205/j.hjgc.202202034
shu

COMPARATIVE ANALYSIS OF EVALUATION METHODS FOR STEEL SLAG SOUNDNESS

doi: 10.13205/j.hjgc.202202034

  • 1. State Key Laboratory of Iron and Steel Industry Environmental Protection, Beijing 100088, China;

  • 2. Central Research Institute of Building and Construction Co., Ltd, MCC Group, Beijing 100088, China

  • Received Date: 2020-12-07
    Available Online: 2022-04-02
  • Publish Date: 2022-04-02
    Abstract
  • The soundness problem caused by the expansion of converter slag is the main reason restricting the large-scale application of converter slag in road construction and building materials. This paper analyzed main reasons of the poor soundness of converter slag in China, and compared the advantages and disadvantages of each evaluation method from five aspects: f-CaO content determination could be used as an auxiliary mean to evaluate the content of main expansive minerals in steel slag quickly; the autoclaved pulverization rate was suitable to evaluate the expansion caused by f-CaO and periclase; the linear expansion rate method of mortar bar needed to be further improved; the soundness of steel slag used in road construction could be effectively tested by 10 days dimmersion expansion rate in of compacted specimens; autoclave method is too severe to test the soundness of the concrete with steel slag aggregate. Combing these five evaluation methods can provide reference for the soundness quality control and research of steel slag as aggregate.
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    • References(19)
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