The second is control of workability of fresh concrete, if concrete isolation secretion of water, strictly control the vibration time, vibration rehabilitation must be timely.
2
辉绿岩多为层状解理,决定了轧制或破碎的碎石骨料的质量较差,配制的混凝土离析和泌水严重;
The diabase gravel almost was laminated cleavage, so the quality of aggregate by impurities and crushing was bad, segregation and bleeding of concrete made by the aggregate was heavy.
3
配制C60高流态泵送砼时,需要采用较大用水量和减水剂掺量,故拌合物常有离析和泌水趋势。
When high flowing pump concrete of C60 is produced, more water and water reducing agent is used. So it often appears segregation and bleeding.