The aggregate and cement of dry-mixed mortar are screened by dry method, and are stirred in a certain proportion in a professional factory according to the performance of different components, and the dry-mixed mixture is used in the use place according to the specified proportion of water or supporting liquid.
Wet-mixed mortar is used to coat the surface of the substrate to protect the substrate and increase its beauty.
2. Different uses
Dry mixed mortar is also called dry mixed mortar. Dry-mixed mortar is used for plastering brick walls, while wet-mixed mortar is suitable for lime mortar because of its strong water absorption and quick water loss at brick, mortar, base and air contact surface.
In-situ mixing mortar is to mix some waterproofing agents into ordinary mortar. Common waterproofing agents are chloride metal waterproofing agent and metal soap waterproofing agent.
3. The manufacturing method of mortar is different.
Ready-mixed mortar can be divided into wet mortar and dry mortar.
Wet mortar: wet masonry mortar, wet plastering mortar, wet ground mortar and wet waterproof mortar.
Dry-mixed mortar: ordinary dry-mixed mortar: dry-mixed masonry mortar, dry-mixed plastering mortar, dry-mixed ground mortar and dry-mixed common waterproof mortar.
Extended data:
Mixing of mortar
Mortar mixer is generally used for mortar mixing, which requires uniform mixing. Plasticizers such as clay, electro-gypsum and fly ash can be added to improve the water retention of mortar. Mortar should be mixed with it. If the mortar is bleeding, it should be stirred again. Cement mortar and mixed mortar must be used within 3h and 4h after mixing. If the temperature is above 30℃, they must be used within 2h and 3h.