1: What is the strength of cement mortar?

1: What is the strength of cement mortar?

1) M10m7.5 and M5 are the strength standards of masonry mortar. Please refer to the relevant construction specifications or design specifications for details. Your question is that "1:3 cement mortar surface course" does not make mandatory requirements for the strength of cement mortar surface course. The specifications only have strength requirements for masonry mortar, so generally no one calculates it

Is the mortar ratio on the drawing mass ratio or volume ratio
The proportion of mortar, cement mortar and mixed mortar on the construction drawing, such as 1:1:6 mixed mortar, 1:2 cement mortar

Mass ratio

The volume ratio of lime mortar is 1:3. What do 1 and 3 mean?

1 is lime, 3 is sand, that is, if you want to mix lime mortar, the sand is three times of lime. For example, 1kg of lime needs to add 3kg of sand