界面处理层强度不够，造成抹面砂浆层空鼓、剥离。在基层表面较光滑且抹面砂浆不易粘结的情况下，为保证济南抹面砂浆与基体之间的粘结牢固，需对基层进行拉毛，这种材料叫做界面处理层。

The strength of the interface treatment layer is insufficient, resulting in hollowing and peeling of the plastering mortar layer. In the case where the surface of the base layer is relatively smooth and the plastering mortar is not easy to bond, in order to ensure the strong bonding between the Jinan plastering mortar and the substrate, it is necessary to roughen the base layer. This material is called an interface treatment layer.

灰浆固化后，抹面砂浆在后期不会发生水化和硬化情况，这一过程伴随着砂浆的收缩。抹面砂浆层后期收缩在抹灰基体界面处理层形成了拉应力，抹灰层厚度约为厚，抹灰层的拉应力越大；抹灰层砂浆强度越高，对界面处理层拉应力越大；抹灰层砂层越细，抹灰层的拉应力越大。

After the mortar solidifies, the plastering mortar will not undergo hydration and hardening in the later stage, which is accompanied by the shrinkage of the mortar. The later shrinkage of the plastering mortar layer forms tensile stress in the interface treatment layer of the plastering substrate. The thickness of the plastering layer is about thick, and the greater the tensile stress of the plastering layer; The higher the strength of the plaster layer mortar, the greater the tensile stress on the interface treatment layer; The finer the sand layer of the plaster layer, the greater the tensile stress of the plaster layer.

后期收缩可能导致界面处理层与基体表面的粘结强度不够，砂浆的抹灰层与基体表面的粘结强度不够大，而抹灰层与基体之间的空鼓、剥落，则抹灰层与基体之间出现空鼓、剥离。出现这样的情况，往往前期不会出现问题，一般半个月后，随着时间的增长，抹灰层空鼓越来越严重。

Late shrinkage may lead to insufficient bonding strength between the interface treatment layer and the substrate surface, insufficient bonding strength between the mortar's plastering layer and the substrate surface, and hollowing and peeling between the plastering layer and the substrate, resulting in hollowing and peeling between the plastering layer and the substrate. When such a situation occurs, there is often no problem in the early stage. Generally, half a month later, as time goes on, the hollowing of the plaster layer becomes more and more serious.

要解决这一问题，首先要提高界面处理层与基体之间的结合强度和本身强度，保证与基体粘结牢固；二是砂浆抹灰一次抹灰厚度不能过厚，禁止一次抹成，每层抹灰应保持适当时间间隔；抹灰厚度超过20mm，要采取多次抹灰工艺。更多相关事项就来我们网站咨询吧！

To solve this problem, first of all, it is necessary to improve the bonding strength and inherent strength between the interface treatment layer and the substrate, ensuring a solid bond with the substrate; Secondly, the thickness of mortar plastering should not be too thick at one time, and it is prohibited to apply it in one time. Each layer of plastering should be maintained at appropriate intervals; If the plastering thickness exceeds 20mm, multiple plastering processes should be adopted. For more related matters, come to our website Consult!