【判断题】【消耗次数:1】
根据工程条件不同,尽量选用水化热较低、强度较高的水泥,严禁使用安定性不合格的水泥。
正确
错误
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相关题目
【判断题】 水泥体积安定性不合格为不合格品
①  正确
②  错误
【判断题】 水泥体积安定性不合格为废品,水泥细度不合格为不合格品。
①  正确
②  错误
【单选题】 对于体积安定性不合格的水泥应采取的措施是( )。
①  与高标号水泥混合使用
②  废弃
③  回收重新加工
④  次要结构正常使用
【判断题】 体积安定性检验不合格的水泥可以降级使用或作混凝土掺合料。
①  正确
②  错误
【判断题】 若水泥的初凝时间不合格,则该水泥为不合格水泥。
①  正确
②  错误
【单选题】 在水泥性能试验后,测定下列哪项指标不合格,水泥即为废品。
①  水泥细度不合格
②  水泥体积安定性不合格
③  水泥标号不合格
④  水泥终凝时间不合格
【判断题】 体积安定性不良的水泥,不能用于任何工程中。
①  正确
②  错误
【判断题】 强度检验不合格的水泥可以降级使用或作混凝土掺合料。
①  正确
②  错误
【单选题】 下列哪项不是水泥体积安定性不良的原因( )。
①  游离CaO 
②  游离MgO
③  水泥杆菌 
④  过量的石膏
【单选题】 不是引起水泥安定性不良的因素是()。  
①  熟料中游离氧化钙过多    
②  熟料中游离氧化镁过多  
③  二氧化硅含量过量      
④  加入的石膏量过多
随机题目
【单选题】 I’m very sorry to kept you ______ for two hours.
①  wait
②  waited
③  waits
④  waiting
【单选题】 If you listen to the tape again and again, you may ____.
①  want to retell the general meaning of what you hear from the tape
②  feel so bored that you cannot understand what you hear from the tape
③  understand what you hear from the tape better and better
④  repeat the exact words you hear from the tape
【单选题】 Some handicapped people may be ______ to go out at all and a visitor is more than welcome.
①  able
②  unable
③  disable
④  disabled
【单选题】 I was ______ tired that I had to rest.
①  very
②  so
③  enough
④  too
【单选题】 In the eyes of the author, one should start from ______ in wide reading.
①  interesting materials
②  books with very few pages
③  materials not too difficult
④  both A and C
【单选题】 In the first sentence, “by no means” means ____.
①  without method
②  not at all
③  absolutely
④  above all
【单选题】 You’ll be late, ______ you start at once.
①  or
②  if
③  and
④  unless
【单选题】 The article ______ in French were impossible for me to read.
①  written
②  writing
③  write
④  wrote
【单选题】 Is this ______ looking for?
①  you are
②  that you are
③  what you are
④  what are you
【单选题】 According to the author, in order to have a good command of English one must ____.
①  employ as many learning strategies as possible
②  expect to gain an easier task
③  exert oneself constantly
④  sustain oneself