What are the differences between cement mortar and mixed mortar?

What are the differences between cement mortar and mixed mortar?
What are the differences in water retention and strength?

Mortars used in masonry and plastering projects of construction projects are divided into cement mortar and mixed mortar. The former consists of cement and sand, while the latter includes cement, lime and sand. Cement mortar and mixed mortar have different applications in different engineering environments.

What is the difference between cement mortar and cement mixed mortar? Cement mortar and mixed mortar mainly differ in composition, water retention and strength.

1. Cement mortar and cement mixed mortar have different compositions
Mixed mortar is generally made by mixing cement, lime paste and sand. It is generally used for masonry above the ground. Mixed mortar is due to the addition of lime paste. Thereby improving the workability of mortar and making it easier to operate. It is conducive to improving the density and work efficiency of masonry.
Cement mortar is made by mixing cement, medium sand and water. The price is related to the proportion of materials.
2. Cement mortar and cement mixed mortar have different water retention
Cement mortar is easy to crack, which is one of the reasons why mixed mortar is used instead of cement mortar for interior wall plastering. In addition, from the appearance, pay attention to the mortar during transportation. The water retention of cement mortar is not as good as that of mixed mortar.
During the bumpy transportation, the cement mortar with a layer of water on the surface is cement mortar (the sand that is not mixed evenly can be seen for the low-grade mortar). The workability and water retention of mixed mortar are better than cement mortar.
3. The strength of cement mortar and cement mixed mortar is different
Cement mortar is mainly used in wet areas such as basements, foundations, hydraulic engineering, etc. Compared with mixed mortar of the same grade, cement mortar has higher strength. Therefore, the specification stipulates that cement mortar should be used as corner guards for door and window openings.
Mixed cement mortar is made by adding lime, clay and other additives to cement mortar. Mixed cement mortar has strong plasticity and is easy to operate. Cement mortar has one less lime paste than mixed water machine mortar, and its strength is not high.