Journal of South China University of Technology (Natural Science Edition) ›› 2009, Vol. 37 ›› Issue (3): 120-126,131.

• Architecture & Civil Engineering • Previous Articles     Next Articles

Fire-Resistant Performance of High-Strength Concrete Columns with Different Decorative Materials

Wu Bo1  Li Jie1  Huang Yu-long2  Wang Fan1   

  1. 1. State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, Guangdong, China; 2. Department of Civil and Structural Engineering, Hong Kong Polytechnic University, Hong Kong, China
  • Received:2008-03-21 Revised:2008-07-02 Online:2009-03-25 Published:2009-03-25
  • Contact: 吴波（1968-），男，研究员，博士生导师，主要从事结构抗灾和新型混凝土结构研究． E-mail:bowu@scut．edu．cn
  • About author:吴波（1968-），男，研究员，博士生导师，主要从事结构抗灾和新型混凝土结构研究．
  • Supported by:

    国家科技支撑计划项目（2006BAJ03A03-12）;教育部新世纪优秀人才支持计划项目（NCET-04-0819）;华南理工大学亚热带建筑科学国家重点实验室重点研究项目（2008ZA10）

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Abstract:

Eight high-strength concrete columns with different decorative materials were tested following the ISO834 standard heating process, and the influence of decorative materials on the explosive spalling of concrete was discussed. Then, the internal temperature fields of the specimens were analyzed, and the results were finally compared with the measured ones. It is indicated that, with the addition of decorative materials, the explosive spalling of concrete delays but the spalling becomes more serious, that two-layer insulation plates significantly prevent high- strength concrete from explosive spalling, and that, by converting decorative materials into equivalent concrete, the influence of decorative materials on the temperature field in specimen section can be well revealed.

Key words: high-strength concrete, decorative material, temperature field, fire-resistant performance