There are many kinds of side ditch molds. They have a large selection space in terms of size and shape specifications, which can basically meet the requirements of all side ditches. For example, there are small U-shaped, trapezoid and rectangular side ditches in the shape, as well as rectangular side ditches with a length of 2m left and right, which are common types. Butterfly and shallow saucer side ditches are mostly installed It is installed on both sides of the expressway to meet the drainage needs. In terms of size, the side ditch formwork usually has two categories: formwork erection and formwork erection. The formwork erection is small and generally consists of internal formwork and external formwork. It is transparent from top to bottom and simple in structure, while the form of flat formwork is much larger. Therefore, the water capacity of concrete side ditch will be larger. When using, the external formwork needs to be fixed outside the internal formwork, and then fixed and blocked at the front and rear ends of the external formwork The slab is evenly brushed with release agent and then poured with concrete. Different from the use of formwork erection, due to the large volume of flat formwork and relatively more grouting, it is often necessary to insert steel bars and lifting rings into the concrete to play a fixed role. After the concrete is solidified, the concrete and steel bars will be firmly solidified together. When the formwork is removed, open the bolts of side ditch formwork The outer mold and the blocking plate are removed first, and can be taken out directly by using the crane to hook the lifting ring, which is very convenient.
What should be paid attention to when using the side ditch mold? First of all, it is the construction step. First, it is necessary to check whether the U-shaped channel mold has accumulated dirt or damage, and then put it into use if there is no problem. It shall be carried out according to the sequence of assembling the mold, brushing the release agent, vibrating exhaust and drying the mold. During the vibration process, it is necessary to ensure that bubbles fully emerge, and at the same time, it is necessary to keep the vibrator from directly touching the surface of the mold to prevent its high-speed vibration scratch Damage to the mold will affect the smoothness of U-shaped channel prefabricated parts. There is also the cleaning and maintenance after use. It is necessary to clean the residual concrete in the U-shaped channel mold in time to prevent it from solidifying in the mold, which will affect the proportion and molding of the next pouring concrete. Therefore, it is necessary to use a special cleaner to clean it. If it is difficult to remove it, it can be brushed with a brush. During cleaning, it is necessary to pay attention to the strength, and do not scratch the mold due to excessive force It can be stored in a dry and ventilated warehouse after being cleaned and coated with protective oil.