Formwork is a complex technique involved in construction requires specialized companies for proper use. It 'the expression of certain forms or containers, cast concrete slabs for the construction or actual components of buildings. Once the concrete has cured a reasonable level, the forms are removed. This is called "stripping.
There are many different types of molds that are used in construction, for many different purposes. There are three mainMaterials for the production of formwork - technology traditional wooden formwork shuttering (usually a metal frame) and stay in place formwork systems () is usually the systems of precast concrete. The use of these types of mold, there are a number of different ways to create the formwork panels and structures.
How it works
Roman engineers began with the formwork slab of large structures to complete the practical use. The engineers built their structures with arches and domes, becauseCement does not have a high resistance to stress. Concrete was just a popular material that was invented after the completion of the concrete.
Different types of formwork
The traditional slab formwork used wood, masonry and carpentry to complete the construction. The method works with records or other forms of support rows of wooden sleepers, which provided three to six meters, or put two feet away, with gaps between the beams.
Metal radiant panelFormwork is very similar to traditional formwork of the slab, where the only difference is that steel is used instead of wood and metal props, rather than supported. This system is reusable and methodical compared to the conventional method. The surface of the concrete is smooth and the formwork is easily removed after the concrete has hardened.
Modular floors are made from pre-made forms in wood or steel or aluminum units. These are typically produced in aOff-site factory, and has completed the construction period.
Table or Flying Form System
Another type of formwork is table or in the form of systems. These tables consist of slab formwork, which are reusable. These tables should not be dismantled and can be used in tall buildings when using cranes or lifts to remove the tables. Once the table is positioned, filled the space between the wall and table. Tables range in size from eight square feet to 150 square metersMeters. This type of formwork is a great saving both labor and time, and is a favorite of engineers and architects. However, shuttering best table in the construction of large size, but uses simple structures.
Because the system can be easily divided into individual parts for transport. The system is built in the same way as formwork, apart from these parts. Frames and stringers are screwed, bolted or welded to a bridge.
Coatings shouldplace at the right height, a room so that it is sufficient to remove once the concrete has been or will be healed. For this reason, the systems of formwork table must be adjustable. Adjustable metal props can be used to support the systems. Some use steel or aluminum stringers and supports in place the systems, while others use metal frame shoring towers to the deck for mounting. Others set the decks on the walls or columns that have previously, which means that the votesEntrepreneurs do not need vertical supports, simply use the shoes support bolted through the holes.
Crane-table for the formwork
Generated tables of five or seven meters wide with a potential of over 100 meters are lifted with a crane. The bridges and coatings moved to the brink of the building, once the cement has dried and the crane lifts the protruding edge upwards, followed by the rest of the formwork.
The benefits include treatment for cranes FormworkReduced labor costs and a methodical way of operation. However, the repeal of this kind requires very sophisticated work crane, which can be expensive.
Forklift or crane for Table Formwork
When you translate into smaller tables, such as those that are two to three feet and four to seven meters long, raised with a crane or a fork lift transport platform for materials that are connected to the side of the building.
ShiftingTrucks are used to transport the table horizontally on the lift or platform of the crane. Crane forks with casing is mainly in the United States and Europe and other countries where labor costs are high, as this technique is the reduction of labor costs, thus lowering costs. Small tables can be adapted to build a more complex design to be adapted. The disadvantage of this type of train operations, the cost of raw materials and cranes.
Formwork should always be performed by a professional contractorit certifies the skills and knowledge and achievements. Since it contains concrete formwork, which is strongly influenced by a number of pressures for the improper use of concrete can crumble as dangerous. Formwork, but allowed people to build structures have never dreamed of, and paves the way for the construction of the future.
