Why should the interior wall plastering be made of mixed mortar?
If the bathroom with a mixture of mortar, as long as the local splash of water, will lead to the entire wall damp, and cement mortar will only be partially damp, will not spread to the entire wall.
External walls, bathrooms and kitchens should be made of cement mortar, because cement mortar has waterproof function.
Mixed mortar is generally mixed with lime paste, with water absorption capacity, suitable for the interior wall.
Explain to you why, walls, bathrooms and kitchens to use cement mortar, the main difference is that the waterproof requirement, cement mortar is a waterproof effect, and the mixed mortar does not possess waterproof ability, practice on the mixed mortar is the incorporation of lime plaster, and lime with water is not waterproof ability. If you use a mixing mortar in the bathroom, when used, as long as the local splash of water will lead to the entire wall damp, while the cement mortar will only be partially damp, and will not spread to the entire wall.
