(1) Good safety performance
Click here to get more.
1. Wooden springboards are easy to crack, corrode, and burn, and are prone to safety accidents. The angle steel mesh plate is rusted and peeled off, and the hot-dip galvanized steel formwork has the advantages of anti-corrosion and fire-proof.
2. The steel formwork has standardly formed convex holes, with high anti-skid coefficient and good effect. The bow-shaped design on both sides of the formwork and the firm welding of the bottom rib plate further increase its strength. The 3-meter-long scaffolding board can withstand the standing of 5-6 people at the same time without deformation, and is sturdy and durable.
(2) long service life
The wooden springboard can no longer be used safely and continuously after 3-5 turnovers, and the steel shuttering is also vulnerable to rust and deformation. The hot-dip galvanized steel formwork has high strength, no corrosion and no deformation, and its normal life is about 6-8 years.
(3) Easy and fast installation
For the same scaffolding board, the weight of the wooden springboard is 1.5-2 times the weight of the steel scaffolding board, and the wooden board is heavier after absorbing water in rainy days, and it is extremely non-slip. During the construction of workers' novels, two people are required to lift and transport the wooden boards, while one person can carry 2-4 pieces of steel formwork, which greatly improves the work efficiency, and the high strength reduces the number of scaffolding tubes used.
The steel formwork is properly maintained and can be used for a long time. It is suitable for flat formwork of different project scales, structural forms and construction processes.
Repair and maintenance of steel formwork: Steel formwork is not as convenient as bakelite formwork during operation, especially for drawing rods, the symmetry error should not be too large. Operators sometimes encounter situations where the lead rod cannot pass through. Punching holes in the formwork will affect the value of steel formwork recycling over time.
However, it is not difficult to find a steel formwork that is 20 to 30 centimeters smaller than the hole to be embedded in the hole and parallel to the surface of the board. Then, after welding it, level it with a hand grinding wheel and cut off the excess on the back. Both flat and bright.
After the steel formwork is used up, do not stack it in the field. It should be transported back to the warehouse in time to remove the cement impurities and rust spots on it, polished it with a grinder, and brushed with a layer of engine oil (it is better to add a small amount of diesel in the engine oil) and stack it neatly.
Combined steel formwork is a concrete structure mold system composed of shaped plates, special-shaped formwork connectors and supports. Combined steel formwork has the following advantages over aggressive wood formwork and old-style steel formwork:
1. The production precision is high, the joints are tight, the rigidity is large, and it is not easy to deform. The concrete structure formed by the square column formwork is accurate in size, dense and smooth.
2. High combined rigidity: The plates are arranged with staggered joints. The panels formed by the bridge formwork have the overall rigidity of the plane. The column-beam formwork itself is a load-bearing component, which can improve the overall rigidity, facilitate the overall hoisting, and simplify the support structure.
3. Long service life: The components have high strength and durability, and can quickly turn around and repair building templates in time.
In a nutshell, formwork is the mold wherein fresh concrete is poured and formed. The mold, which can be permanent or temporary, holds the poured concrete and shapes it until it solidifies and becomes strong enough to support itself and other loads.
Formwork is also known as 'shuttering.' However, in certain parts of the world, shuttering refers to using plywood or timber to create the mold.
Formwork systems can be classified according to the following parameters:
Construction costs usually consist of building materials (ca. 45%), labor (ca. 45%), and operating expenses (ca. 10%). Formwork material comprises 15% of the total building material and contributes roughly 44% of the total labor. Meanwhile, formwork construction accounts for up to 25% of the total cost of building the structure. For this reason, many builders and construction companies prefer reusable forms (panel forms). The process of removing formwork is called 'stripping.'
If you want to learn more, please visit our website Kaichaungxing.
As the name suggests, column formwork is used in the construction of circular or rectangular columns. Columns have formwork sections with a 'closed load transmission,' which is supported by the formwork's design and the guaranteed tensile strength rather than by using ties.
Steel formwork is often used to form circular columns as it is economical and available in incremental dimensions. Single-use forms, which are destroyed and disposed of during stripping, can be used as an alternative. However, using single-use formwork is not advisable if you need to construct multiple circular columns.
Meanwhile, rectangular columns are formed using three systems depending on their specifications. For instance, classic timber girders with steel walers and a plywood facing are often used when builders need to construct a significant number of columns with special dimensions. The windmill system, which is composed of columns or multipurpose panels of frame formwork systems, is suitable for building single columns with a standard dimension.
Finally, a foldable column formwork is highly suitable for columns with great heights. Because all the essential components (panels, connecting devices, ladders, and access platforms) are integrated into this type of column formwork, it helps builders reduce their construction time and costs.
Wall formwork comes in different types and classifications, as outlined below.
Conventional
Conventional wall formwork consists of boards or sheets and squared timber. It is flexible, but it can be costly and time-consuming as each component must be assembled on-site. In addition, all of its parts should be made according to the project's specifications, and they must be nailed together and dismantled again after concreting.
Girder
This is a better version of the conventional formwork. Its components, which usually consist of dimensionally stable girders with two chords and one web, have been standardized to facilitate the assembly of identical and ready-to-use panels. The connection of the panels has also been systematized.
Frame
This type of wall formwork helps reduce labor time since its essential components (forming face, support for forming face, and steel walers) are assembled as one panel. The profile nose of the frames protects the edges of the forming face, thereby extending its lifespan. Connecting devices are used when assembling the frame panels to large-sized units, which are then usually transported by crane.
Crane-independent (hand-set)
This type of formwork can be moved by hand. Because of weight considerations, it is usually made of aluminum or plastic. It can take less concrete pressure than crane-dependent formwork, and is often used in housing and municipal construction projects.
Crane-dependent
Crane-dependent formwork systems feature a large frame and formwork panels, usually made of steel. As a result, they cannot be moved manually. Since they can resist more fresh concrete pressures than crane-independent forms, they are suitable for the construction of commercial buildings and other extensive infrastructure projects.
Two-sided
As the name implies, two-sided formwork is erected on both sides of the wall. Its formwork ties, which are usually sleeved by spacing plastic tubes so they can be reused, take up the fresh concrete pressure. Push-pull props or large heavy-duty braces are attached to the formwork to align and secure it against wind loads during operation.
Single-sided
Single-sided formwork is used when the concrete has to be poured against existing structures or when builders need to do concreting against a hill or soil. This is why it is most suitable for reconstruction jobs. With this type of formwork system, concrete pressure is transferred from the formwork to the base plates through a support structure.
Prefabricated
This formwork consists of two prefabricated concrete panels which are assembled in advance, and then transported and filled with concrete on-site. Braces and push-pull props are often used to secure the walls, while working and safety scaffolds are installed with the help of special adapters to make the construction process more cost-effective. Prefabricated formwork helps minimize project duration and labor costs. However, pre-planning is required to ensure that it is transported safely to the site.
Circular
Circular formwork is designed for the construction of curved and polygonal walls. It is also quite useful in the construction of specific concrete structures, such as septic tanks and car park ramps. This formwork system comes in three different types:
Climbing
Climbing formwork is quite useful in the construction of high-rise concrete structures, such as control towers and skyscrapers, because it climbs with the wall. It comprises large wall formwork mounted to a climbing scaffold. There are three different types of climbing formwork:
MEVA is an industry leader offering a wide variety of wall formwork systems that provide highly efficient shuttering, flexibility, and reliability. Our products are lightweight and easy to assemble, and therefore will facilitate the rapid completion of your construction projects. Click here to learn more.
For more Combined Flat Formworkinformation, please contact us. We will provide professional answers.