1. Before using cement, it is necessary to inspect the quantity, model, strength, etc. of cement to ensure that the cement used meets the requirements. When inspecting, it is important to pay attention to the shelf life of the cement. If the cement has been out of the factory for 3 months, it cannot be used anymore. It should be replaced with a new cement product before use.

2、在调配水泥砂浆时，不可随意加水，也不可随意添加助剂，更不可凭感觉来调配。水泥砂浆的调配，需严格按照它的比例来操作，若是调配的太稀，砂浆的强度就会降低，这会影响到它的施工。

2. When mixing cement mortar, it is not allowed to add water or additives at will, and it is not allowed to mix based on feeling. The mixing of cement mortar needs to be strictly operated according to its proportion. If the mixing is too thin, the strength of the mortar will decrease, which will affect its construction.

3、在调配水泥时，除了需要加水，还要添加沙子、石头等材料，这样能增强砂浆的粘稠性，可以使它施工后更稳定、坚固。

3. When mixing cement, in addition to adding water, materials such as sand and stones should also be added, which can enhance the viscosity of the mortar and make it more stable and sturdy after construction.

4、由于水泥砂浆在调配后，水分会慢慢流失，会慢慢凝固，因此在要用水泥砂浆时，再现调现用，并尽快的使用，这样更不会影响它的使用性能。

4. Due to the slow loss of moisture and solidification of cement mortar after mixing, when using cement mortar, it should be reused and used as soon as possible, so as not to affect its performance.

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