What are the cons of formwork?

09 Jan.,2024

 

A construction project is never complete without a formwork, whether it’s made from steel, wood, or aluminium, because it’s the core part responsible for delivering the concrete its desired shape using a temporary mould. The concrete develops the much-desired strength to keep its shape after being set in the mould for a long time.

Steel and wood are both essential components of construction to give a great working surface to a construction but both have certain advantage and disadvantage. In this post we are describing both.

Pros and Cons of Both Timer And Steel Formwork

Advantages of timber formwork

  • Timber formwork are Very flexible in Nature
  • Timber has a high thermal resilience, preventing concrete degradation in colder climates.
  • Timber formwork are light weight so it is easy handle.
  • Timber formwork are also easy to disassemble.
  • Skilled workers are not required for this formwork construction
  • It can easy to remove damaged parts of formwork with new one.

Disadvantage of Timer Formwork

  • Timber formwork Can’t be used for long and it have limited re-use facilities like 4 to 6 only.
  • If the timber is dry, it will absorb moisture from wet concrete which could weaken the resultant concrete member.
  • Timber with high moisture content (more than 20 % moisture content), wet concrete will shrink & cup leading to open joints & leakage of grout.

Steel Formwork

Steel formwork are number one material which can be utilised in a construction work. It is preferable of all constructor. It is highly expensive, but it can be used more times than others. Also steel fromwork is extremely strong and safe for large scale of construction work.

Advantage of Steel Fromwork

  • Steel formwork are very strong so it is able to carry heavy load on it.
  • Steel formwork are easy to fixed.
  • Steel formwork have uniform size and surface.
  • Steel formwork can be used for a very long period of time.

Disadvantages of steel formwork

  • Steel formwork are high cost material
  • Steel formwork have limited size and shape.
  • Steel formwork have excessive loss of heat.
  • Steel formwork are very smooth surface which would gives a problems for finishing process.

FAQ Related the Post-

What are the best materials for formwork?

Generally timber, steel, aluminum and plywood are the common material that are used in formwork but Steel is the best material among which is the best for Formwork.

What is steel formwork?

Steel formwork is a type of steel frame that is used to build structures. It is commonly used in construction projects (Big or Small) where concrete is not feasible due to its weight or cost. Steel formwork is often used in commercial buildings, bridges, dams, and skyscrapers. In addition to being strong, it is also lightweight and durable. It consists of metal panels that are connected together using steel rods. These panels are then placed over concrete forms, which are temporary structures built around the area where the concrete will be poured.

What are the benefits of formwork?

For optimizing the cost of construction, A formwork is the best and critical elements. It is also helpful to reduce the time to complete the project and reduce risk factor in Construction.

Advantage and Dis Advantage of Steel Formwork

Sushil Jaiswal

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3 min read

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Jul 16, 2022

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Formwork is one of the crucial criteria in any construction project. Keeping in mind how the formwork impacts the construction time of a project selecting steel formwork becomes everyone’s choice. Do you know, that 40 to 60% of the total cost of concrete execution and implementation depends on the formwork price, texture, and appearance.

Steel formwork is a type of steel frame that is used to build structures. It is commonly used in construction projects where concrete is not feasible due to its weight or cost. Steel formwork is often used in commercial buildings, bridges, dams, and skyscrapers. In addition to being strong, it is also lightweight and durable. It consists of metal panels that are connected together using steel rods. These panels are then placed over concrete forms, which are temporary structures built around the area where the concrete will be poured. Once the concrete has hardened, the steel formwork is removed, leaving behind a permanent structure. In this blog, we will talk about

Few advantages & disadvantages of steel Formwork

Advantages of Steel Formwork

  • Durability- Steel formwork is extremely durable and strong. It is able to withstand extreme weather conditions and heavy loads without breaking down. This makes steel formwork perfect for use in construction projects where the environment is harsh.
  • Cost-Effective — Using steel formwork is much cheaper than using concrete formwork. Concrete formwork requires a lot of time and effort to build. In addition, it is expensive to maintain. On top of that, concrete formwork is not as durable as steel formwork.
  • Easy To Build — Building a steel formwork structure is relatively simple. You do not need any special tools to construct a steel formwork structure. All you need is a hammer, nails, and some wood boards.
  • Efficient — The efficiency of a steel formwork structure comes from its design. A steel formwork structure is designed to hold the shape of the object being built. As a result, it does not require additional support to keep the shape of the structure intact.
  • Versatile — A steel formwork structure can be used in many different ways. From building small structures to big buildings or even tunnels, a steel formwork structure can handle anything and can be customised into any required shape.
  • Smooth Concrete Appearance — Steel formwork gives a smooth, clean finish after the completion of the curing process, unlike other material formworks that leave textures on the surface of the structures.
  • Reusable — Steel forwork can be re-used multiple times if properly maintained, which is impossible for concrete or wood formwork. The criteria for reusing any steel formwork depends on the present conditions.

Disadvantages of Steel Formwork

When we talk about the disadvantages of steel formwork, the advantages surpass the cons. The disadvantages are very much less to discuss. However, after conducting some thorough research we have found these disadvantages of steel formwork;

  • Cost — Steel formwork is expensive compared to concrete formwork. A typical project may cost $10,000 — $20,000 per linear foot. Concrete formwork costs around $500-$1000 per linear foot. In addition, steel formwork requires additional skilful labour, and special tools to install and maintain.
  • Weight — The weight of steel formwork is much greater than concrete formwork. If you have heavy equipment working at your site, then you need to consider how much weight your equipment can handle.
  • Maintenance — Concrete formwork does not require any maintenance. However, steel formwork requires regular cleaning and painting to prevent rusting and corrosion.
  • Noise & Safety — Concrete formwork creates minimal noise. Steel formwork produces loud banging noises while being installed. And Concrete formwork is safe to use. You do not need to worry about safety hazards associated with concrete formwork. On the contrary, steel formwork poses many safety risks.

Conclusion

Steel formwork is known for its durability & fine finishing. Though the initial cost is comparatively higher, in the long term it is worth it. And the reusable property somehow mitigates its cost. There are different types of steel formwork including pre-fabricated steel forms, fabricated steel forms, and custom steel forms. Pre-fabricated steel formwork is the easiest to install. Fabricated steel forms are manufactured at the site where they are going to be installed. Custom steel forms are designed specifically for each project.

If you are considering opting for steel formwork, GRS is your one-stop solution. Being an expert in manufacturing & supplying steel formwork, they are committed to delivering high-quality products for the successful completion of a project.

What are the cons of formwork?

Advantage and Dis Advantage of Steel Formwork