The proportion of the formwork in the construction cost is not large, but it is the most space-saving and cost-effective turnover material. Sometimes it is really a choice that the cost of formwork in a building is 50,000 or 100,000. I hope that the author’s experience can help to see the development, construction, and labor companies of this article, improve quality, reduce costs, take less detours, and build more projects.
First of all, starting from the aluminum formwork, after all, the aluminum concrete forms is now hot, and there are many friends concerned.
The aluminum formwork replaces the traditional formwork, square wood, and steel pipe, which is equivalent to the formwork + support system. This product does not appear in China for a long time. The first aluminum mold project I saw was about 2012, and it developed only 7 years to now, but the development is very fast. Now in the domestic construction industry, although only some projects are used, basic everyone has heard of it and has some understanding, which shows that it does have outstanding features.
The following are some of the advantages and disadvantages of the aluminum formwork collected by the author through interviews with users, etc., for the reference of interested friends.
1. Industrial standard production, the quality is relatively stable.
2, precise determination, high bearing capacity, relatively stable concrete forming.
3. Skillful workers have high construction efficiency.
4, can be equipped with a quick release system, less on-site garbage.
5, the number of turnover is high, can be recycled and refurbished.
1. The cost is high, and the one-time investment is large. Even if it is rented, the cost is high.
2, after the deformation is difficult to repair, repair trouble, generally a small deformation will lead to a large piece affected.
3. workers must have corresponding construction techniques, otherwise the efficiency is low and the effect is poor.
4, aluminum alloy surface and concrete are prone to oxidative corrosion, resulting in bubbles affecting concrete molding.
5. the energy consumption of electrolytic aluminum production is large, and oily release agent is required for use.
Aluminum formwork have been in Europe and the United States for more than 50 years and have long-lasting vitality. Most of the domestic aluminum mold technology originates from Germany’s PERI and Austria’s DOKA. Like countless materials, aluminum formwork currently have significant advantages and disadvantages (because of the unknown reason, the market share in Europe and the United States seems to remain low. From the annual plywood export data in China, the construction industry in Europe and the United States is still in heavy use. Wood glue board). In the process of domestic development, many outstanding talents are constantly improving it to make it more suitable for the current construction situation in China.
On the whole, the current aluminum formwork is improved under the correct construction technology, and the cost is increased. For example, build a single floor area of 700 square meters, about 30 floors of high-rise residential standard floor, the rental fee is about USD250,000. Under the condition of the new plastic formwork, according to the scheme used by the author’s customer, the standard layer formwork of the same building can be completed within USD200,000, and the formwork still can use around 70 times!
I hope that the talents of construction engineers can make the aluminum formwork more cost-effective. How far this product can go, and wait for time to test.