If you are not a geological worker, I am afraid that you will not understand what the strength grade of cement mortar is, nor what is the method of calculating the strength of cement mortar. But cement mortar is the most common building material in people’s lives. They play an important role in the construction of the house. Only when the strength grade of cement mortar is within the standard range, can the house be built strong and with high performance. Speaking of which, a large part of it may still be unclear and vague, so let’s learn about the strength of cement mortar together, and let everyone become an expert in the construction industry. At least theoretically, an expert is enough.
Cement mortar strength grade classification
The strength grade of cement mortar is mainly based on the standard obtained from experiments in a cube with a side length of 7.07CMr. In the most standard environment, the general temperature is 22 degrees, and the humidity is above 90. Under the condition of curing 28D compressive strength, there are six grades of cement mortar strength, which are respectively It is M20, M15, M10, M7.5, M5, M2.5. Maybe you want to know the method of calculating the strength of cement mortar. They are calculated in a certain environment and space. There is no need for ordinary users to do so. clear.
Strength testing of cement mortar strength grades
In terms of national related house construction, there is a certain standard method to test the strength of cement mortar. The relevant regulations indicate that the mortar test block test is based on a cube, and they are based on three cubes. Finally, 1.3 times of the average value after three different values are tested is a group of specimens, so that the average strength of other holes can be checked. However, during the testing process, if the difference between the maximum or minimum value of the result obtained is as much as 15%, then the maximum and minimum values should be removed and not calculated, and the middle value should be directly used as the compression resistance of the group test. strength. And if in the test, two data exceeds 15%, it means that this test is a failure and unqualified.
Influencing Factors of Cement Mortar Strength T Grade
The method of calculating the strength of cement mortar is relatively difficult, and there are many requirements. What factors affect the strength grade of cement mortar? How can the strength of mortar reach the best quality? It is mainly affected by the choice of material and the mix ratio. The size, the construction process and the water absorption performance of the masonry.
The strength level of cement mortar is affected by many aspects, but users and friends, try to choose popular brands and reputable manufacturers as much as possible, so that you can have a certain guarantee. Therefore, in the construction process, the mortar will also exert its greatest functions and advantages.
