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Construction & building materials v.134, 2017년, pp.602 - 609   SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

TiO2 containing electromagnetic wave absorbing aggregate and its application in concrete

Lu, Linnu (State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology), Wuhan 430070, China ); He, Yongjia (State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology), Wuhan 430070, China ); Ping, Bing (State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology), Wuhan 430070, China ); Wang, Fazhou (State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology), Wuhan 430070, China ); Hu, Shuguang (State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology), Wuhan 430070, China );
  • 초록  

    Abstract The concept of electromagnetic wave absorbing (EMWA) functional aggregate used in concrete is proposed for the first time. It was prepared by dispersing TiO 2 powder into clay and then calcining. The electromagnetic wave absorbing ability of concrete prepared with the functional aggregate was markedly improved compared to concrete with gravel aggregate or ordinary haydite aggregate. Further improvement is found to be realized by the addition of manganese zincferrite powder into cement paste. The absorption bandwidth below −10dB was larger than 8GHz in the tested range of 8–18GHz. Moreover, the compressive strength of concrete (water/cement ratio=0.4) prepared with functional aggregate was higher than 28MPa at 28days and it can be used directly as a structural component in buildings. Highlights The concept of electromagnetic wave absorbing functional aggregate is proposed for the first time. TiO 2 containing electromagnetic wave absorbing functional aggregate was prepared. Microwave absorption of the functional aggregate is largely due to the dielectric loss effect of TiO 2 . The TiO 2 containing functional aggregate obviously improved the microwave absorption of concrete.


  • 주제어

    Electromagnetic wave absorbing (EMWA) .   TiO2 .   Functional aggregate .   Concrete.  

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