很多人以为抹面砂浆就是水泥加沙子随便拌一拌。这个认知大错特错。抹面砂浆有明确的分类和用途，用错了轻则墙面不平，重则空鼓脱落。

Many people think that plastering mortar is just a mix of cement and sand. This cognition is completely wrong. There are clear classifications and uses for plastering mortar. If used incorrectly, it can result in uneven walls or hollowing and peeling.

抹面砂浆是什么？ 抹面砂浆是涂抹在建筑物或建筑构件表面，兼有保护基层并满足使用要求的砂浆统称。它不同于砌筑砂浆——砌筑砂浆负责“粘砖”，抹面砂浆负责“抹平墙面”。

What is plastering mortar? Smearing mortar is a general term for mortar applied to the surface of buildings or building components, which not only protects the base layer but also meets the requirements for use. It is different from masonry mortar - masonry mortar is responsible for "sticking bricks", while plastering mortar is responsible for "smoothing walls".

抹面砂浆按功能分3大类：

The plastering mortar is divided into three categories according to its function:

第一类：普通抹面砂浆。 用于砖石墙表面的常规抹灰。常见配比：石灰：砂=1:2～1:4。适用于干燥环境的墙面抹灰。不潮湿的房间墙面和天花板，可用石灰：石膏：砂=1:0.6:2～1:1:3。

Type 1: Ordinary plastering mortar. Conventional plastering for the surface of brick and stone walls. Common ratio: Lime: Sand=1:2~1:4. Suitable for wall plastering in dry environments. A non humid room wall and ceiling can be made of lime: gypsum: sand=1:0.6:2 to 1:1:3.

第二类：防水抹面砂浆。 用于浴室、潮湿车间等墙裙、勒脚或地面基层。配比：水泥：砂=1:3～1:2.5。勒脚、女儿墙外脚等防潮部位，用石灰：水泥：砂=1:0.5:4.5～1:1:5。潮湿环境建议用防水砂浆，普通砂浆上去就受潮脱落。

Type 2: Waterproof plastering mortar. Used for wall skirts, footholds, or ground substrates in bathrooms, damp workshops, etc. Mixing ratio: cement: sand=1:3-1:2.5. Use lime: cement: sand=1:0.5:4.5~1:1:5 for moisture-proof parts such as footholds and parapet walls. Waterproof mortar must be used in humid environments, as ordinary mortar will peel off when exposed to moisture.

第三类：聚合物抹面抗裂砂浆。 主要用于外墙外保温系统中保温层外的抗裂保护层。配比中包含水泥、砂、石灰，还添加可再分散乳胶粉、纤维素醚等聚合物成分。目的是抗裂、增强粘结力，防止保温层开裂。

Category 3: Polymer coated anti cracking mortar. Mainly used as a crack resistant protective layer outside the insulation layer in external wall insulation systems. The ratio includes cement, sand, lime, and polymer components such as redispersible latex powder and cellulose ether. The purpose is to resist cracking, enhance bonding strength, and prevent cracking of the insulation layer.

不同基层用不同砂浆：砖墙底层多用石灰砂浆；混凝土基体常用混合砂浆；潮湿区域需用高强度耐水水泥砂浆。

Different mortar is used for different base layers: lime mortar is often used for the bottom layer of brick walls; Common mixed mortar for concrete matrix; High strength water-resistant cement mortar is required in damp areas.

一句话总结：普通墙面用普通抹面砂浆，卫生间浴室用防水砂浆，外墙保温用抗裂砂浆。用错了地方，再好的施工也白搭。

Summary in one sentence: Ordinary wall surfaces use ordinary plastering mortar, bathrooms use waterproof mortar, and exterior wall insulation uses crack resistant mortar. Using the wrong place, even the best construction is useless.

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This article is a friendly contribution from Jinan plaster mortar For more information, please click: https://www.jnfhjc.com Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.