要计算砂浆含量,需要知道所有用来制造混凝土的材料重量和比重,也需要知道骨料级配,因为只有通过8号筛的骨料才被认为是砂浆的一部分。下面的计算表明:当砂子级配变化时,砂浆含量就能发生变化。设计配合比所用的砂子是82％通过8号筛。如果用来自同一产地的砂子,而其92％通过8号筛,那么砂浆含量就会显著地增加。 To calculate the mortar content, you need to know the weight and specific gravity of all the materials used to make the concrete. You also need to know the aggregate grading, because only the aggregate that passes through the No. 8 sieve is considered to be part of the mortar. The following calculations show that as the sand grading changes, the mortar content can change. The sand used for the design mix is ​​82% passed through the No. 8 sieve. If sand from the same origin is used and 92% of it passes through No. 8 sieve, the mortar content will increase significantly.