The full name of aluminum formwork is aluminum alloy formwork for building. It is a new generation of formwork system after wood formwork and steel formwork Aluminum formwork is designed according to module, extruded by special equipment, and can be combined freely according to different structural dimensions. The design, development and construction application of aluminum formwork is a great development of the construction industry. The application of aluminum formwork system in the construction industry has improved the construction efficiency of housing construction engineering, including in the construction materials, labor arrangements are greatly saved.

Effect

Improve the efficiency of building construction

Main material

Aluminium alloy

Introduction to aluminum formwork

Aluminum formwork is a building formwork made of aluminum alloy, also known as aluminum alloy formwork. It is made and designed according to module, extruded by special equipment, and composed of three parts of aluminum panel, bracket and connector. It has a complete set of general accessories. It can be combined and assembled into an overall formwork with different dimensions and complex dimensions. It can be assembled and industrialized This system solves the defects of the traditional formwork and greatly improves the construction efficiency.

Aluminum formwork design, development and construction application is a great development of the construction industry.

Development of aluminum formwork

Aluminum template has been used for 55 years since it was born in America in 1962. In the United States, Canada and other developed countries, as well as in Mexico, Brazil, Malaysia, South Korea, India and other emerging industrial countries, the building has been widely used.

Aluminum template application

The largest application builder of aluminum formwork is Vanke, one of the leaders in the real estate industry. Almost all high-rise buildings of Vanke are designated to adopt aluminum formwork system. In the Vanke dream factory built, there is an aluminum template system. This is a symbol of our country's great progress in the construction industry.

Dongguan Wanke Songhu legendary garden project is also a green construction system. In addition to green building materials, aluminum formwork system is also used. As a green construction demonstration unit, this project held a visit and learning activity, and the Ministry of housing and construction actively promoted the application of aluminum formwork construction.

Advantages of aluminum template

The components of the aluminum formwork system need to be designed according to the characteristics of the floors, which requires high ability of the design technicians. About 80% of the modules in the aluminum formwork system can be recycled in multiple projects, while the remaining 20% can only be recycled in a class of standard floors, so the aluminum formwork system is suitable for super high-rise buildings or multi-storey buildings and villas with high degree of standardization. The following technical advantages can be especially reflected in the areas with high degree of Urbanization:

1) short construction period. The aluminum formwork system is a quick formwork removal system. The normal construction of a set of formwork can reach one floor in four days, and the assembly line construction can be well carried out, which greatly improves the construction progress and saves the management cost.

2) it has many times of repeated use and low average use cost. Aluminum alloy profiles formed by overall extrusion are used as raw materials in the aluminum formwork system, and one set of formwork can be turned over for more than 300 times in standard construction. The purchase price of a set of templates is shared equally, which saves a lot of cost compared with traditional templates.

3) convenient construction and high efficiency. The aluminum formwork system is simple and convenient to assemble, with an average weight of about 20kg. It is completely handled and assembled by hand without any assistance of mechanical equipment. Moreover, the system design is simple, and the workers can handle it quickly and the formwork can be turned over quickly. Skilled installation workers can install 20-30 square meters per person per day, greatly saving labor costs.

4) good stability and high bearing capacity. The bearing capacity of most aluminum formwork systems can reach 60kn per square meter, which is enough to meet the bearing capacity requirements of most residential buildings.

5) wide application range. Aluminum formwork is suitable for the use of walls, horizontal floors, columns, beams, stairs, windowsills, floating plates and other positions, and it is also useful for the formwork support of secondary structures such as ring beams, structural columns, back ridges and so on.

6) less joints, high precision, and good concrete surface effect after formwork removal. After the formwork of aluminum building is removed, the surface quality of concrete is smooth and smooth, which can basically meet the requirements of facing and fair faced concrete. There is no need for batching, which can save the cost of batching.

7) the construction waste on site is less and the support system is simple. All accessories of aluminum formwork system can be reused. After formwork removal, there is no garbage on site. The structure of support system is simple and easy to remove, so the whole construction environment is safe, clean and tidy.

8) strong standard and universality. There are many specifications of aluminum formwork, which can be assembled with different specifications of plates according to the project; when the used formwork is rebuilt into a new building, only about 20 non-standard plates need to be replaced, which can reduce the cost.

9) high recovery value. When the scrap value of aluminum die plate is high, the cost sharing advantage is obvious.

10) low carbon emission reduction. All materials of aluminum formwork system are renewable materials, which meet the national regulations on energy conservation, environmental protection, low carbon and emission reduction of construction projects.

Disadvantages of aluminum template

Many formwork accessories are easy to be installed and classified; noise during installation; high thermal conductivity; poor elasticity of forming pad; more joints than large formwork; swaying;

Construction principle of aluminum formwork

Aluminum formwork construction is popular, mainly because the technical indicators are more advanced, more able to meet the national and social requirements for construction projects.

The whole process of construction preparation of aluminum formwork system is as follows:

The design of architectural drawings and structural drawings is completed → the drawings are reviewed and quoted by the aluminum formwork technicians → the content of cooperation is negotiated and the contract is signed → the technicians design the formwork drawing (formwork assembly drawing) → production according to the drawings → factory pre assembly → inspection qualified → delivery and delivery → site construction.

Aluminum formwork construction process:

Wall formwork → beam formwork → stair formwork → formwork acceptance → concrete pouring → quality acceptance → formwork removal (first installed and then removed) → transport to the next floor for construction.