In construction, to build a strong and stable building, it is important to choose the right formwork materials for the right building. Generally, two formwork materials are widely used in projects: wood and steel. These two materials are the go-to options for many builders. Each one of them has their own set of strengths and weaknesses. However, for the past few decades, new formwork material has been used to make slabs, titles, beams, etc.
Since its introduction, plastic formwork has been in the spotlight. It offers many promising benefits, such as durability, budget-friendliness, stability, sustainability, and more.
But the key question here is: Can plastic formwork replace traditional formwork like steel and wood? Or is it just another fleeting trend in the construction industry?
Let us delve deeper to explore all the myths and facts about plastic formwork.
Overview of Formwork Types: Wood, Steel, and Plastic
It’s essential to understand the difference between the three formwork types before concluding. Each type—wood, steel, and plastic—offers unique benefits and limitations. All three cater to different audiences and needs. Knowing the ins and outs of each formwork will help you make the best decision.
Wood Formwork
It is one of the oldest and most widely used conventional formworks. It is often used in construction projects, such as residential buildings and small-scale projects. The formwork includes key components like wooden boards or panels, which are used to make temporary molds.
Advantages of Wood Formwork
- Wood formworks are flexible. They can easily be customized and cut into any shape and size.
- They are generally ideal for forming irregular or curved shapes, which is often a challenge for the other two formwork types.
- Compared to steel and plastic, wood formwork is less expensive. This makes them popular among small-scale projects.
- They are easy to handle and don’t need complex machines for cutting.
Disadvantages of Wood Formwork
- They have a shorter lifespan than others. Wood formwork can easily deteriorate with time and exposure to moisture and heat.
- They need frequent repair and maintenance. With that, it also has a limited number of reusability.
- For usage, skilled carpenters are required for precise cutting, fitting, and assembly.
- They are easily susceptible to water damage, thus making them unsuitable for regions like Kerala or Mumbai.
Steel Formwork
It is one of the most durable and reusable formwork in the construction sector. The steel formwork is made by using steel panels, frames, or modular systems (pre-made parts). Steel formwork is commonly used in construction projects like high-rise buildings, bridges, and other structures.
Advantages of Steel Formwork
- Steel formwork has a high load-bearing capacity, which can withstand the pressure of wet concrete seamlessly.
- It is highly resistant to moisture and offers longevity.
- They provide a smoother surface and finishes, which reduces the need for additional work.
- Because of their longevity, steel formworks can be reused multiple times without underscoring their performance.
Disadvantages of Steel Formwork
- Steel formwork is heavy and needs machinery or cranes for handling; this increases the cost.
- They require highly skilled work to assemble and disassemble them.
- They are not suitable for small-budget projects as their initial cost is slightly higher.
- They are at risk of corrosion and rust if not taken care of properly.
A Modern Alternative in Construction: Plastic Formwork
Plastic formwork is a modern construction method. Plastic panels or blocks are used to make a temporary mold. The formwork is made by using highly durable plastic that is resistant to wear and tear. With this, it reduces construction waste as most of the plastic formwork is made of recycled plastic.
Advantages of Plastic Formwork
- Plastic formwork is much lighter than wood or steel. This makes them easy to handle and transport without spending much, unlike steel or wood.
- They are resistant to damage from moisture and chemicals. Unlike wood, which may rot, or even steel, which could rust, plastic formwork is ineffective in all of these.
- They have higher initial costs, but in the long run, they are more cost-effective. They can be reduced numerous times.
- They require minimal maintenance. Unlike steel or wood, which requires maintenance to extend its life, plastic formwork only requires inspection once in a while.
Disadvantages of Plastic Formwork
- As we have mentioned earlier, the initial cost of plastic is very high. This is because of the advanced material and technology used to make plastic formworks.
- They are not so easily customizable as wood. They may hamper the construction process if it involves complex designs.
- Though plastic formworks are environmentally friendly, they require a special process to dispose of them. If not taken care of properly, it could contribute to environmental pollution.
Comparing Plastic, Steel, and Wood Formwork: A Comprehensive Analysis
The choices between steel, wood, and plastic formwork all reduce project requirements like cost, budget, durability, etc. Here is the breakdown of the comparison between all three popular types of formworks.
|
Factors/Aspects |
Wood Formwork | Steel Formwork |
Plastic Formwork |
| Initial cost | Low | Moderate/high | High |
| Long-term cost | High because of frequent repair and maintenance | Low due to minimal repair and maintenance | Not much because of durability and longevity |
| Durability | Low not so durable. | Highly durable | Highly durable |
| Strength | Moderate, not so ideal for heavy loads | Has high strength and is suitable for heavy loads. | Is not suitable for heavy loading |
| Ease of Use/Installation | Required skilled carpenter | Requires skilled workers | Easy to assemble and disassemble |
| Environmental friendly | Not much, as wood formwork results in cutting down trees, which leads to Deforestation | Recyclable, requires more energy to produce steel formwork | Can be recycled and made using recycled products |
Can Plastic Formwork Replace Wood and Steel?
Plastic formwork has emerged as a very promising formwork material, but whether it can replace wood and steel is very subjective. It would depend on factors like cost, durability, strength, etc.
If you are looking for formwork that will last for a long time, then plastic formwork is ideal for you. However, if you are looking for something greater at load bearing, then plastic formwork would not be the best bet for you.
In short, this all comes to your requirements. No doubt, plastic formwork is a viable option; however, there are certain considerations that you need to take.
The Right Formwork Depends on Your Project Needs
Plastic formwork is a modern and innovative alternative that could be used in place of wood and steel.
It has several advantages that could outweigh factors like cost, durability, and environmental friendliness. Furthermore, it is resistant to moisture and chemicals, which is very beneficial.
However, whether plastic formwork can fully replace wood and steel depends on specific project requirements. Wood formwork is cost-effective, and steel formwork can bear more weight. The choice between these three would all depend on your needs and requirements.
When considering plastic formwork, it is crucial to choose a reliable manufacturer that delivers high-quality products.
Nova Formworks stands out as one of the leading manufacturers of plastic formwork, offering durable and efficient solutions designed to meet various construction needs. With its commitment to quality and innovation, Nova Formworks continues to be a preferred choice for builders looking to embrace modern construction technologies.
