Expansion behavior of concrete with alkali-silica reactive and alkali-carbonate reactive aggregates autoclaved in different alkalis was studied.

 
  • 研究了由堿-硅酸活性集料和堿-碳酸鹽活性集料制成的混凝土在各種堿中的膨脹行為。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan