Metal concrete formwork buying guide
When you want to buy metal concrete mold or large plate mold, it is necessary to pay attention to several points. The first thing that is very important and that we must pay special attention to is the strength of the metal concrete form. Molds must have high durability and resistance. Another point to pay attention to is the cleanliness, uniformity and smoothness of the mold surface. If the said elements are not present in the mold, it will cause holes in the concrete.
On the other hand, you should pay attention to mold heating in the summer season. High temperature can directly affect the smoothness and uniformity of concrete. Therefore, you should pay special attention to cold mold in the hot season. The metal concrete mold has more weight than other molds because it has higher strength and durability.
What are the types of concrete metal formwork?
- circular template
- table format
- beam template
- edge template 5
- Two-piece column molding
- Four-piece column mold
- edge template 6
Important points in the use of concrete formwork
The cleanliness, uniformity and smoothness of the surface of the metal mold is very important because if it is not smooth and uniform during the pouring of concrete, small and large holes may be generated on the surface of the structure and cause the structure to not be smooth and uniform so it must be noted that the surface of the mold must be smooth, and to solve this problem Often the mold surface is lubricated with oil.
It is very important to pay attention to the heat of the concrete metal mold in the hot season because in addition to affecting the smoothness of the concrete and the structure, the heat may change the color of the concrete and reduce the quality of the structure. So be careful about the mold used in season, as the heat needs to be cool. As said, the most important steps in the construction of concrete structures are formwork. For this reason, the concrete structure contractor must be well-versed in issues related to molding, from metal formwork equipment to specifications, dimensional details, and implementation methods.
Examination of the concrete metal mold
Wooden concrete mold or board formwork, it has more affordable price than metal material. The reason for the cheapness of this type of template is that the carpenters made the wooden template at the project site according to the plans for this project, and we witnessed the process that takes a long time, and this type of template did not have a long service life. This type of mold (wooden mold) is very simple in terms of work, but it is less used in large projects because of the time-consuming production of this model of mold.
The metal concrete mold has eliminated most of the disadvantages of the wooden mold, such as high repeat factor, construction speed, molding, and relatively smooth and smooth surface.
Metal formwork has standard sizes that are produced starting from 10 cm wide in multiples of 5 and finally up to 50 cm wide. The standard length of these moldings is also 1m, 1.5m and 2m for column molding mostly from the outside corner (5 x 5) – (5 x 10) and (10 x 10) and corner length because the molding seam and corners if not, usually They choose 1.5 meters.
Due to its modularity, the said form can be used in different parts of the project, such as the foundation, columns (with different dimensions), walls, beams, and slabs. Of course, in order to speed up the coordination, it is best to use a larger board in the wall coordination. In order to restrict the concrete formwork used under the bridge or roof, if the height is low and the volume of concrete is low, roof jacks are used, otherwise triangular scaffolding is often used.
What are the components of the concrete metal mold?
The components that make up the concrete metal form work together to form an integrated, strong and resistant structure without any defects, and in all types of concrete forms, there are specific and unchanging components which are
Parapet, column, top, body, back straps, curbs, etc. are the components of the concrete metal mold. These concrete forms can be placed next to each other and create more complex systems such as modular formwork, rising formwork, table formwork, rotary formwork, hammer formwork, sliding formwork, etc.
The more complex the structure, the more complex the concrete metal formwork and the more components the mold will consist of. On the other hand, the more complex the concrete metal formwork system, the more difficult and complex the metal formwork will be. . The metal formwork of all structures is generally poured into the wet concrete formwork and after drying, the formwork is removed from it.
How are concrete metal formwork produced?
For the production of metal-concrete formwork, in welding molds, a 3-mil plate is used for the floor and a 5-mil plate for its belts, but in bent formwork it is produced with a 3-mil plate. Therefore, the weight per square meter of 5cm edge welded concrete block is 40kg – 6cm edge 43kg and curved edge concrete block is about 37kg per square meter.
Although the curved edge moldings are light and resistant, they are not suitable for installing walls that need to be exposed. Due to the curvature of the side of the mold (the straps), when the molds are put together, they do not stick together completely, so after the molds have been poured and opened, the concrete muscle becomes fully visible.
The accessories needed to fasten the concrete form to each other are: pin and wedge, medium clamp (clamp), belt, clamp, rod belt for attaching the concrete form to the soldier, belt nut (khorsk) and double-tube washer, cup washer and belt tensioner, the plate used in the production of Concrete molds are one of the most important reasons for price changes among mold manufacturing plants.
Concrete metal molds are used, in a welded or belt mold, 3 mil sheet for the floor and 5 mil plate for the belt, but in the bent mold, they are produced with a 3 mil plate. Therefore, the weight per square meter of 5cm edge welded concrete block is 40kg – 6cm edge 43kg and curved edge concrete block weighs about 37kg per square meter.
The best formworkers use blessed steel sheets, but again, their mold prices are uneven, and this can be for various reasons. Skilled workers can get high-quality output and the wages of formwork workers can have an impact on the price of concrete formwork. The company’s cost management can control the molds produced with their own overhead and additional costs, or produce them at the same costs. Increase yourself.
Although the curved edge molding is light and resistant, it is not suitable for installing walls that need exposing. Because the sides are bent when the molds are put together, they do not stick together completely, so after the molds have been poured and opened, the concrete muscle becomes fully visible. Tubular washer, pin and wedge, medium buckle, strap and narrow belt. All mold models, both wooden and metal, can be produced and ordered by Sepenta Concrete Mould.