Pipeline bending strength mortar coating experimental pipe diameter is large, pipe bending is easy, flat is easy. Hourly flat diameter does not bend easily. It is believed that the mortar coating of pipeline bending is prone to occur due to the spalling of coating. The inner lining of cement mortar is made of ordinary cement with sand and additives of a certain thickness. The mortar mixture is designed according to the mixing ratio. Through special engineering machinery and equipment, it is coated on the pipe wall to form a certain thickness of mortar coating and solidify after lining. Cement mortar lining depends on its own strength and pipe wall support. Its structure is uniform, compact, hard and firm. If epoxy mortar surface is painted again, the roughness coefficient after water can also be reduced. Cement mortar lining not only has simple physical barrier barrier performance, but also protects pipelines through the chemical properties of cement mortar lining.


Cement mortar lining has several obvious advantages:
1. Avoid corrosion and rust on pipe wall, make pipe long, keep good water condition and low friction coefficient.
2. Because of the lining of the isolation layer, the water is not in contact with the metal pipe to ensure the water quality.
3. Corrosion of cement mortar pipe wall to prevent corrosion perforation and prolong pipe life.
4. Cement mortar coatings are easy to obtain, with short construction period and good anticorrosion performance, which reduces the cost of pipeline engineering.