Is there a specification in Linfen, Shanxi that requires the use of ready-mixed mortar?

Yes, it is forbidden to mix mortar on site, and ready-mixed mortar and commercial concrete must be used.

Ready-mixed mortar refers to various mortar mixtures produced by professional manufacturers and used in construction projects. It is a new building material developed in China in recent years, which can be divided into ordinary ready-mixed mortar and special mortar according to its performance. In the early 1950s, European countries began to produce and use ready-mixed mortar on a large scale, which has a history of more than 50 years. Developed areas in China, such as Shanghai and Changzhou, have developed rapidly. At the same time, many cities are gradually banning on-site mixing mortar and promoting the use of ready-mixed mortar. Advantages include health and environmental protection, stable quality, energy saving and comfort.

Ordinary mortar mainly includes masonry mortar, plastering mortar and ground mortar. Masonry mortar and plastering mortar are mainly used for masonry and plastering of various concrete bricks, fly ash bricks and clay bricks in load-bearing walls and non-load-bearing walls, and ground mortar is used for ground leveling in ordinary and special occasions. Special mortar includes thermal insulation mortar, decorative mortar, self-leveling mortar and waterproof mortar. , its uses are also diverse, widely used in building external wall insulation, indoor decoration repair and so on.