The global formwork market size is expected to reach USD 6.06 billion by 2024. The growth is attributed to rapidly expanding residential and commercial construction sector due to new construction activities and renovation of old sites across the globe. Demand for residential spaces due to rising population will also present potential growth opportunities for the global market.Timber and plywood are the key raw materials used in manufacturing formworks. However, aluminum formworks are increasingly gaining popularity as they are light weight and have low density. Aluminum formworks have longer lifespan compared to their counterparts made of timber and plywood and therefore are more economical as well. Over the years to come, the market is expected to derive significant growth from aluminum formworks.
Construction companies are growing at a rapid rate where overall formwork market size is estimated to reach around USD 6.12 billion by 2024 from 5.21 Billion in 2017 registering a healthy CAGR. This growth is taking place because construction companies are paying high attention to labor and severe time-saving methodologies.
The determining factor in the growth of the formwork market is the strong demand of the construction sector. The industry is growing at a very fast pace and it is estimated that the current cement production will become double in the near future. In recent years, concrete technology has grown by leaps and bounds. Advances in concrete technology have led to many innovations and emerging trends as a result of construction speed and durability. New concrete variations such as high-performance concrete, concrete with large ashes, concrete powder reactive with superplasticizer even changed the perception of the design, while posing new challenges in the field of formwork.
Formwork makers are situating their R&D towards turning out on account of item developments keeping the interesting working states of India. Peri, another worldwide market pioneer in the area, had prior in the year propelled Peri Liwa, a lightweight kind of board formwork, which can be utilized wherever there are just constrained crane limits accessible or where all the work must be done physically. Solid development of modules is normally utilized as a part of private lodging, where a similar design must be imitated in extensive numbers. This kind of formwork systems could assume a key part in India which is ready to enter a period of gigantic advancement of moderate lodging ventures.
In the development business, diverse sorts of cement formwork are utilized. Generally, concrete formwork is being utilized. Numerous sorts of formwork are accessible for any building venture. In light of sort, the formwork market is delegated designed formwork system, conventional timber formwork, re-usable plastic formwork, stay set up auxiliary formwork systems, lasting protected formwork, and adaptable formwork.
Why Formwork:
Acute shortage of labour is amongst the key factors that have been driving forward the demand for formwork and scaffolding systems. Labour shortage has added to the pressure on contractors, who are already grappling with issues of construction costs being on the rise. In this day and age of lean construction methods, featuring tightened purses, semi-automated and automated formwork systems have come as a boon.The Formwork should have sufficient strength to carry a dead load and live load coming on it during casting operation and after that till concrete gets hard and gain some percentage of design strength. Therefore choosing the best one is almost a necessity for a successful system. Discussed below are some of the popular formwork system available.
To fulfil the housing and infrastructure requirements of increasing population, in last few decades Indian construction industry has grown in large amount. With the introduction of multinational companies in Indian construction sector, accuracy and speed of work has increased. Now-a-days to cope up with the demand is becoming crucial. Conventional construction methods are economical but they are unable to give required quality work and speed. Hence, in today’s date there is a need to think on latest construction technology. Formwork is an important part of construction which takes almost 30-35% of total cost of construction. The various new technologies of formwork systems are introduced which helps to increase the overall economy, high quality construction and speed of construction. In this paper, analysis of new formwork technology implemented on site is done and it is proven that how it is more useful than the previous method of formwork technology.
Different types of Formwork System
Traditional timber formwork: The formwork is built on site out of timber and plywood or moisture-resistant particleboard. It is easy to produce but time-consuming for larger structures, and the plywood facing has a relatively short lifespan. It is still used extensively where the labour costs are lower than the costs for procuring reusable formwork. It is also the most flexible type of formwork, so even where other systems are in use, complicated sections may use it.
Engineered Formwork System: This formwork is built out of prefabricated modules with a metal frame (usually steel or aluminium) and covered on the application (concrete) side with material having the wanted surface structure (steel, aluminum, timber, etc.). The two major advantages of formwork systems, compared to traditional timber formwork, are speed of construction (modular systems pin, clip, or screw together quickly) and lower life-cycle costs (barring major force, the frame is almost indestructible, while the covering if made of wood; may have to be replaced after a few – or a few dozen – uses, but if the covering is made with steel or aluminium the form can achieve up to two thousand uses depending on care and the applications).
Re-usable plastic formwork: These interlocking and modular systems are used to build widely variable, but relatively simple, concrete structures. The panels are lightweight and very robust. They are especially suited for similar structure projects and low-cost, mass housing schemes. To get an added layer of protection against destructive weather, galvanized roofs will help by eliminating the risk of corrosion and rust. These types of modular enclosures can have load-bearing roofs to maximize space by stacking on top of one another. They can either be mounted on an existing roof, or constructed without a floor and lifted onto existing enclosures using a crane.
Permanent Insulated Formwork: This formwork is assembled on site, usually out of insulating concrete forms (ICF). The formwork stays in place after the concrete has cured, and may provide advantages in terms of speed, strength, superior thermal and acoustic insulation, space to run utilities within the EPS layer, and integrated furring strip for cladding finishes.
Stay-In-Place structural formwork systems: This formwork is assembled on site, usually out of prefabricated fiber-reinforced plastic forms. These are in the shape of hollow tubes, and are usually used for columns and piers. The formwork stays in place after the concrete has cured and acts as axial and shear reinforcement, as well as serving to confine the concrete and prevent against environmental effects, such as corrosion and freeze-thaw cycles.
Flexible formwork: In contrast to the rigid moulds described above, flexible formwork is a system that uses lightweight, high strength sheets .of fabric to take advantage of the fluidity of concrete and create highly optimised, architecturally interesting, building forms. Using flexible formwork it is possible to cast optimised structures that use significantly less concrete than an equivalent strength prismatic section,[3] thereby offering the potential for significant embodied energy savings in new concrete structures.
Slab formwork: Slab Formwork essentially consists of a horizontal load-bearing structure which supports the formlining and transfers the forces into the shoring. Some its types are- Timber beam slab formwork,Traditional slab formwork, Metal beam slab formwork, Modular slab formwork, Table or flying form systems and Tunnel forms.
Climbing formwork: Climbing formwork is a special type formwork for vertical concrete structures that rises with the building process. While relatively complicated and costly, it can be an effective solution for buildings that are either very repetitive in form (such as towers or skyscrapers) or that require a seamless wall structure (using gliding formwork, a special type of climbing formwork).
Various types of climbing formwork exist, which are either relocated from time to time, or can even move on their own (usually on hydraulic jacks, required for self-climbing and gliding formworks).
Info and Image
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- https://www.ijiert.org/admin/papers/1511271070_Volume%204%20Issue%2011.pdf
- https://www.slideshare.net/natesh0142/formwork-57176879