快干水泥与双干水泥有区别吗?区别在哪里?谢了

各位大虾尽量详细点,谢了!!!
2025-03-26 16:24:05
推荐回答(3个)
回答1:

水泥中没有快干水泥和双干水泥的名称,只是根据混凝土工程的需要添加掺料,如早强剂、速凝剂、缓凝剂、减水剂、加气剂等,和特殊混凝土的掺料。

回答2:

杭州水泥制品二厂

回答3:

快干水泥,是在普通水泥中加入一定比例促进凝固的添加剂,用于需要快速凝固的工程,因凝固迅速,其力学性能一般比不上正常凝固速度的水泥。但也需要有比较好的力学性能。
而膨胀水泥,是在普通水泥中加入发气剂,让水泥在凝结的过程中内部产生大量的气泡,重量只有普通水泥的3~5成,就像做面包加入了发泡粉,膨胀水泥因内部气孔,力学性能大为减弱,不能作为受力支承部件。主要用作填充墙砌体、或起其它填充作用,为的是减轻重量、节省材料,内部气孔也有很好的保温隔热、隔声的作用。
  双快水泥的主要特点是凝结硬化快、小时强度高,即所谓“小时水泥”。该水泥凝结时间用缓凝剂可以调节。该水泥还具有微膨胀、低温条件强度发挥正常及长期强度稳定等优点。主要用于紧急抢修工程、地下工程、隧道工程、锚喷支护工程、粘结铸造、截水堵漏以及公路路面抢修等工程。

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