济南的抹面砂浆通常适合常见的加气砖和混凝土墙面，不过在使用时需要根据具体情况考虑是否使用界面剂，以下是具体分析：

Jinan's plastering mortar is usually suitable for common aerated bricks and concrete walls, but when using it, it is necessary to consider whether to use interface agents according to specific situations. The following is a specific analysis:

加气砖墙面：加气砖孔隙率高、吸水率高，如果使用普通抹面砂浆，施工后砂浆失水太快，会导致水泥硬化不足，影响抹面效果和质量，甚至带来安全隐患。因此，加气砖墙面宜选用专用的抹面砂浆，如聚合物抗裂砂浆，这种砂浆具有柔性高、粘结强度高、耐候性好、防水抗裂效果好等优点，能较好地适应加气砖的特性。由于加气砖表面较为疏松多孔，为了增强抹面砂浆与加气砖墙面的粘结力，防止抹灰层空鼓、开裂、剥落等问题，一般需要使用界面剂。界面剂能充分浸润加气砖基层材料表面，使基层密实，提高界面附着力。

Aerated brick wall: Aerated bricks have high porosity and water absorption rate. If ordinary plastering mortar is used, the mortar will lose water too quickly after construction, which will lead to insufficient cement hardening, affect the plastering effect and quality, and even pose safety hazards. Therefore, it is advisable to use specialized plastering mortar for the surface of aerated brick walls, such as polymer anti cracking mortar. This mortar has the advantages of high flexibility, high bonding strength, good weather resistance, and good waterproof and anti cracking effects, and can better adapt to the characteristics of aerated bricks. Due to the loose and porous surface of the aerated brick, in order to enhance the bonding strength between the plastering mortar and the aerated brick wall, and prevent problems such as hollowing, cracking, and peeling of the plastering layer, interface agents are generally required. The interface agent can fully infiltrate the surface of the aerated brick base material, making the base dense and improving the interface adhesion.

混凝土墙面：普通抹面砂浆可以用于混凝土墙面，但对于一些有特殊要求的场景，如需要更好的抗裂、防水性能时，也会选用聚合物抹面砂浆等专用砂浆。混凝土墙面如果表面较为光滑，腻子等材料难以附着，此时刷界面剂可以提高抹灰砂浆对基层的粘结强度，有效避免抹灰层空鼓、脱落、收缩开裂等问题。若混凝土墙面表面粗糙坚硬稳固，无结构松散、起砂返尘等问题，也可以不使用界面剂直接进行抹面施工，但在实际操作中，为了保证抹面质量，很多时候也会选择先涂刷界面剂进行基层处理。

Concrete wall: Ordinary plastering mortar can be used for concrete walls, but for some scenarios with special requirements such as better crack resistance and waterproof performance, special mortars such as polymer plastering mortar are also used. If the surface of the concrete wall is relatively smooth and putty and other materials are difficult to adhere to, brushing the interface agent can improve the bonding strength of the plastering mortar to the base layer, effectively avoiding problems such as hollowing, peeling, shrinkage and cracking of the plastering layer. If the surface of the concrete wall is rough, hard, and stable, without problems such as loose structure, sanding, and dust return, it is also possible to directly carry out plastering construction without using interface agent. However, in practical operation, in order to ensure the quality of plastering, it is often chosen to first apply interface agent for base treatment.

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