干混抹灰砂浆用优质水泥为主要粘结基料，精确筛分并制得的河沙，配以高品质的保水增稠材料，用精确计量的干混剂，用双轴强制搅拌器搅拌而成，是采用优质聚合物设计制造的专用改良干粉，只需现场加水后按要求用机械搅拌即可使用。保水率是一项很重要的指标，那保水率对干混抹灰砂浆有什么影响呢？下面济南抹面砂浆厂家为你分析：

The dry mixed plastering mortar is mainly composed of high-quality cement as the main bonding material, accurately screened and prepared river sand, combined with high-quality water retaining and thickening materials, accurately measured dry mixing agent, and mixed with a dual axis forced mixer. It is a specialized improved dry powder designed and manufactured with high-quality polymer, and can be used only by adding water on site and mechanically stirring according to requirements. Water retention rate is a very important indicator, so what is the impact of water retention rate on dry mixed plastering mortar? Below, Jinan plastering mortar manufacturer will analyze for you:

一、保水性差会导致塑性开裂；砂浆保水性差，水分容易流失，尤其是对于吸水快的加气块墙，水分被基材吸走，而干混抹灰砂浆没有凝结，无法抵抗体积收缩引起的拉应力，导致出现不规则裂纹。

1、 Poor water retention can lead to plastic cracking; Mortar has poor water retention and is prone to water loss, especially for aerated block walls that absorb water quickly. Water is absorbed by the substrate, while dry mixed plastering mortar does not set and cannot resist tensile stress caused by volume shrinkage, resulting in irregular cracks.

二、保水率差，会造成空鼓；干混抹灰砂浆泌水会造成砂浆成分不均匀，导致整体性能下降。对于干混抹灰砂浆，水分流失快，容易被基材夺走，水泥水化不充分，降低了砂浆与基材的粘结力。随着温度和湿度的变化，砂浆会发生体积变形，形成应力，导致砂浆与基材分离。这种现象是砂浆空鼓的主要原因。

2、 Poor water retention rate can cause hollowing; The bleeding of dry mixed plastering mortar can cause uneven mortar composition, leading to a decrease in overall performance. For dry mixed plastering mortar, water loss is fast, it is easy to be taken away by the substrate, and the cement hydration is insufficient, reducing the bonding force between the mortar and the substrate. With changes in temperature and humidity, the mortar will undergo volume deformation, forming stress, leading to separation between the mortar and the substrate. This phenomenon is the main cause of mortar hollowing.

三、保水性差，施工性差；干混抹灰砂浆的保水性差，会产生砂浆泌水，砂浆在加水搅拌后的运输过程中或放置过程中，会产生分层与上、中、底层稠度不同，造成粘结性差，抹灰易落灰，砂浆操作性差等后果。

3、 Poor water retention and construction performance; The poor water retention of dry mixed plastering mortar can result in mortar bleeding. During the transportation or placement process after mixing with water, the mortar will have different layers and the consistency of the upper, middle, and bottom layers, resulting in poor adhesion, easy falling of the plaster, and poor operability of the mortar.

那么今天的讲解就先到这里了，以上就是今天的全部内容，相信大家对保水率对干混抹灰砂浆的影响也有了一定的认识。非常感谢您的耐心阅读。如还想了解更多关于干混抹灰砂浆的相关问题，您可以关注我们网站咨询！

So that's all for today's explanation. That's all for today. I believe everyone has a certain understanding of the impact of water retention rate on dry mixed plastering mortar. Thank you very much for your patience in reading. If you want to learn more about dry mixed plastering mortar, you can follow our website consulting service