配比不同的水泥砂浆用途也不同,在水泥不变的情况下,砂用得越少标号越高。高标号用于面层,低标号的用于里层(底抹灰)楼上的。在楼地面工程中1:2的水泥砂浆比较不常用,但1:2的水泥砂浆防水效果要好一点,1:2.5和1:3的常用,多用在找平层和保护层。1:2的水泥砂浆用的水泥比较多,水化热大了点,容易裂。具体点:1:2及砂浆主要用于抹灰面层,1:3砂浆一般用于中间层或找平层

　　The use of cement mortar varies with different proportions. In the case of constant cement, the less sand used, the higher the grade. High grade is used for the surface layer, while low grade is used for the inner layer (bottom plastering) above. 1:2 cement mortar is not commonly used in floor engineering, but it has better waterproofing effect. 1:2.5 and 1:3 are commonly used in leveling and protective layers. 1: The cement mortar of 2 uses a relatively large amount of cement, which has a high hydration heat and is prone to cracking. Specific points: 1:2 mortar is mainly used for plastering surface layer, and 1:3 mortar is generally used for intermediate layer or leveling layer

　　1、用于不同部位,M5是砌筑墙体用的砂浆;水泥砂浆1:3墙面打底砂浆。

　　1. Used for different parts, M5 is mortar used for masonry walls; Cement mortar 1:3 wall base mortar.

　　2、M5砌筑砂浆是要做试块的;水泥砂浆1:3不发做。

　　2. M5 masonry mortar requires making test blocks; A cement mortar ratio of 1:3 will not be used.

　　3、施工时的工艺不同。粗的用于做地砌墙,细的用于粉墙等。

　　3. The construction process is different. Coarse ones are used for masonry walls, while fine ones are used for powder walls, etc.

　　砂浆强度等级是以边长为7.07cm的立方体试块，按标准条件[在(20±2)℃温度、相对湿度为90%以上的条件下养护至28d的抗压强度值确定。砌筑砂浆按抗压强度划分为M20、M15、M10、M7.5、M5、M2.5等六个强度等级。砂浆的强度除受砂浆本身的组成材料及配比影响外，还与基层的吸水性能有关。

　　The strength grade of mortar is determined based on the compressive strength value of a cube specimen with a side length of 7.07cm, which is cured for 28 days under standard conditions of (20 ± 2) ℃ temperature and relative humidity above 90%. Masonry mortar is divided into six strength grades based on compressive strength: M20, M15, M10, M7.5, M5, M2.5, etc. The strength of mortar is not only affected by the composition materials and proportions of the mortar itself, but also by the water absorption performance of the base layer.

　　而我们所说的M5或者M10的砂浆是指水泥砂浆强度，一般砌筑砂浆用强度表示方式表示：M5、M10、M20等常见水泥砂浆强度配合比如下：

　　And what we refer to as M5 or M10 mortar refers to the strength of cement mortar. Generally, masonry mortar is expressed in terms of strength: M5, M10, M20 and other common cement mortar strength mix proportions are as follows:

　　一般M7.5强度砂浆用于沟、井砌筑，M10的强度砂浆用于毛石、挡墙砌筑。

　　Generally, M7.5 strength mortar is used for trench and well masonry, while M10 strength mortar is used for rubble and retaining wall masonry.

　　一般高速公路修建排水沟使用M7.5强度等级的砌筑砂浆。水泥砂浆强度等级被划分为了6个等级他们分别是m2.5、m5、m7.5、m10、m15、m20,而用处的话

　　Generally, M7.5 strength grade masonry mortar is used for the construction of drainage ditches on highways. The strength grade of cement mortar is divided into six grades, which are m2.5, m5, m7.5, m10, m15, m20, and are used for various purposes

　　一般情况下多层建筑物墙体选用M2.5-M15的水泥砂浆、检查井、雨水井等砌体,常采M5砂浆、变电所、地下室等砌体选用M2.5-M10的水泥砂浆;

　　In general, M2.5-M15 cement mortar is used for the walls of multi story buildings, as well as for the masonry of inspection wells, rainwater wells, etc. M5 mortar is commonly used, and M2.5-M10 cement mortar is used for the masonry of substations, basements, etc;

　　二层以下建筑常用M2.5以下砂浆公路修建排水沟使用M7.5强度等级的水泥砂浆。而你装修打地平或者是浴室的话建议用m7.5强度等级的水泥砂浆。

　　Buildings below the second floor commonly use cement mortar with a strength grade of M7.5 for road construction and drainage ditches. If you are decorating the floor or bathroom, it is recommended to use M7.5 strength grade cement mortar.

　　通常所说的1：3水泥砂浆是用1重量水泥和3重量砂配合，实际上忽视了水的成分，一般在0.6左右比例，即应成为1：3：0.6，水泥砂浆的密度为2000Kg/m3。

　　The commonly referred 1:3 cement mortar is a mixture of 1 weight of cement and 3 weight of sand, which actually ignores the composition of water. The ratio is generally around 0.6, which should be 1:3:0.6. The density of cement mortar is 2000Kg/m3.

　　通常所说的1:3水泥砂浆是用1份水泥和3份砂配合,实际上忽视了水的成分,一般在0.6左右比例,即应成为1:3:0.6,水泥砂浆的密度为2000Kg/m3.

　　The commonly referred 1:3 cement mortar is a mixture of 1 part cement and 3 parts sand, which actually ignores the composition of water. The ratio is generally around 0.6, which should be 1:3:0.6. The density of cement mortar is 2000Kg/m3

　　一般抹灰砂浆用配合比表示：1:1、1:2.5等。

　　Generally, the mix proportions for plastering mortar are expressed as 1:1, 1:2.5, etc.

　　用途：

　　Purpose:

　　砌各种隔断墙和各类砌体使用1：2的水泥砂浆;墙面抹灰以及封闭管道、线路、修补等，使用1：1水泥砂浆;

　　Use 1:2 cement mortar for building various partition walls and masonry structures; Wall plastering and sealing of pipelines, lines, repairs, etc., using 1:1 cement mortar;

　　地面找平使用1：1水泥砂浆，并且要求用纯水泥收浆;

　　Use 1:1 cement mortar for ground leveling, and require the use of pure cement for grouting;

　　贴墙砖使用2：1水泥砂浆，不能使用纯水泥贴墙砖;铺地砖要使用1：3水泥砂浆，并且砂浆不能过稀;

　　Use 2:1 cement mortar for wall tiling, and do not use pure cement for wall tiling; When laying floor tiles, a 1:3 cement mortar should be used, and the mortar should not be too thin;

　　水泥砂浆强度M5或者M10等和1:2或者1:3水泥砂浆，两者是不是同一概念，也没有必然联系。砌筑时常用强度表示，抹灰时常用配合比表示，但是农村一般情况不会分那么清，很多地方都是用配合比表示。

　　Is the strength of cement mortar M5 or M10 the same as that of 1:2 or 1:3 cement mortar, and there is no necessary connection between the two. Strength is commonly used in masonry, and mix proportion is commonly used in plastering, but in rural areas, it is generally not so clear, and many places are expressed using mix proportion.