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.
二是控制新拌混凝土的和易性，如果混凝土离析泌水，严格控制振捣时间，必须适时进行复振。
Aiming at these defects, a kind of special mortar for plastering aerated concrete with good workability, good water retention, high bonding strength and low shrinkage ratio has been prepared.
针对这些缺陷，研制了一种和易性好、保水性好、粘结强度高、收缩率低，适合加气混凝土抹灰用的砂浆。
With increasing of modified EPS powders size, the segregation phenomenon of mortar became seriously, water retention, workability and bending strength decreased.
随着EPS颗粒粒径的增大，砂浆的分层度增大，保水性、和易性及抗折强度降低。
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