In order to test the quality of plastering mortar, there is a recognized practice in the industry, which is to manufacture cube block. The strength and other properties of mortar can be tested after the mortar is proportioned into a model.

　　抹灰砂浆试块的尺寸一般是固定的，一般是70.7mm的长方体。试验在20℃、相对湿度大于90%的标准条件下进行，确定砂浆强度等级。将3个试块按1组进行评价，3个试块的平均值为砂浆试块抗压强度的平均值。对于三个测量值的值或更小值，当一个值与中值之差大于15%时，将值和更小值四舍五入。中值是测试集的抗压强度值。当两个值的差值大于15%时，该试验组的实验结果无效。

　　The size of plastering mortar test block is generally fixed, generally 70.7mm rectangular. The test is carried out under the standard conditions of 20 ℃ and relative humidity greater than 90% to determine the strength grade of mortar. Three test blocks are evaluated as one group, and the average value of three test blocks is the average value of compressive strength of mortar test block. For the maximum or minimum of three measurements, when the difference between one value and the median value is greater than 15%, round the maximum and minimum values. The median is the compressive strength value of the test set. When the difference between the two values is more than 15%, the experimental results of the experimental group are invalid.

　　另一方面，检测组的数量应符合以下规定:不同强度等级的砂浆及相应的砂浆试块应分别制作。试验块应按机理取样，不能刻意筛选。2、对于主体建筑砂浆，至少三组试块。一般建筑物及附属建筑物，包括至少两组测试大厦。3.测试块应在相同的条件下进行测试，以检测每个施工阶段的强度。

　　On the other hand, the number of test groups shall meet the following requirements: mortar of different strength grades and corresponding mortar test blocks shall be made separately. The test block shall be sampled in accordance with the mechanism and shall not be selected deliberately. 2. For the main building mortar, at least three groups of test blocks shall be used. General and ancillary buildings, including at least two test buildings. 3. Test blocks shall be tested under the same conditions to detect the strength of each construction stage.

　　1. 同一强度等级的试件平均强度不得低于设计强度等级。2. 任何试验块的强度应大于设计强度等级的75%。3.在实测工程中，如果砂浆试块强度等级不合格，则该工程部分也不合格。在寒冷地区和潮湿环境中，砂浆试块的强度水平一般提高1级。

　　1. The average strength of the test piece of the same strength grade shall not be lower than the design strength grade. 2. The minimum strength of any test block shall be greater than 75% of the design strength grade. 3. In the measured project, if the strength grade of mortar test block is unqualified, the part of the project is also unqualified. In cold area and humid environment, the strength level of mortar test block is generally increased by 1 grade.

　　以上是济南抹面砂浆试块的试验规程和标准作业，感谢阅读。

　　The above is the test procedure and standard operation of Jinan plastering mortar test block, thank you for reading.