单选题:下列说法不正确的有( )

  • 题目分类:建筑工程
  • 题目类型:单选题
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题目内容:
下列说法不正确的有( ) A.中空玻璃应采用双道密封。一道密封应采用丁基热熔密封胶。隐框、半隐框及点支承玻璃幕墙的二道密封应采用硅酮结构密封胶;明框玻璃幕墙用中空玻璃的二道密封宜采用聚硫类中空玻璃密封胶,也可采用硅酮密封胶;
B.单位工程竣工验收可以在建筑节能分部工程验收合格前进行
C.建筑高度大于等于24m时,保温材料的燃烧性能应为A级;幕墙铝合金立柱与连接件接触面之间必须加防腐隔离柔性垫片,以防止产生双金属腐蚀
D.后加锚栓施工后,应按5‰比例随机抽样进行现场承载力试验,锚栓的极限承载力应大于设计值的一倍。必要时,还应进行极限拉拔试验

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