Good cement pipes are selected from superior raw materials, especially when creating some high-end pipes. But know that this is the most difficult work for us to distinguish. Some defective materials can also be modified by the appearance of these materials to make us think they are so high-end and have very good quality. Therefore, the selection of high-quality pipe materials actually requires us to discriminate the data. Only after distinguishing the high-end materials and fake and inferior materials can we distinguish the pipes they produce.
Natural maintenance means that there is no need for a steam curing pond.After the cement pipe is played, the cement pipe and mold are placed in the open air for natural maintenance.Generally, after the cement pipe is played, it needs to be maintained in the open air for one day, and the mold can be opened the next day. Natural maintenance is also required for 4-6 days, and a special person sprays water three times a day on the cement pipe . The time is usually once in the morning, once at noon, and once in the afternoon. The purpose of the water spray is to maintain the humidity of the cement pipe so that the concrete can gradually gradually improve. The number of condensation and water spray can also be increased and decreased according to the weather conditions and the humidity of the weather. However, there are many molds for natural maintenance.