What are the strength grades of cement mortar?

1. Cement mortar has five strength grades: M5, M7.5, M 10, M 15 and M20.

M5 cement mortar has the lowest strength, and is generally used for laying non-bearing walls and temporary building walls.

M7.5 and M 10 are the most commonly used cement mortars in modern buildings, which are used to build load-bearing walls and large-area walls.

M 15, M20 cement mortar, used for load-bearing walls or walls with waterproof requirements, and masonry designed to improve strength.

2. The mixture ratio of cement mortar is as follows: (per meter? )

M5 cement mortar: 32.5Mpa cement, 216kg; Medium sand, 1.0 15m? ; Water, 0.29 meters

M7.5 Cement mortar: 32.5Mpa cement, 246kg medium sand, 1.0 15m? ; Water, 0.29 meters

M 10 cement mortar: 32.5Mpa cement, 271kg; Medium sand, 1.0 15m? ; Water, 0.29 meters

M 15 cement mortar: 32.5Mpa cement, 330kg；; Medium sand, 1.0 15m? ; Water, 0.29 meters

.m20 cement mortar: 32.5Mpa cement, 390kg medium sand, 1.0 15m? ; Water, 0.29 meters