在砼前后接槎处，加强振捣，但也不能过度振捣以防砼发生粗骨料下沉和分层离析。
At the contact point of concrete, intensify the movement of vibrator, but not so fast, otherwise coarse aggregate will submerged and separated.
在砼前后接槎处，加强振捣，但也不能过度振捣以防砼发生粗骨料下沉和分层离析。
At the contact point of concrete, intensify the movement of vibrator, but not so fast, otherwise coarse aggregate will submerged and separated.
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