Plastic Formworks in Construction: Advantages and Disadvantages

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Plastic Formwork is a modernized and cutting-edge solution used in the construction industry. It is used to build smooth concrete surfaces.
The formwork offers numerous advantages over traditional formworks (steel, wood, or metal).  It is an innovative measure designed to make construction work quicker and faster. They are more eco-friendly and environmentally friendly compared to other materials.

However, with advantages, there are certain disadvantages you need to understand. Understanding plastic formwork strengths and weaknesses will help you make well-informed decisions.

What are Plastic Formworks Made Up Of?

Plastic formwork is made of high-grade plastics (polypropylene or fiberglass-reinforced plastics). These materials are very durable and can withstand the external pressure and force used while molding concrete. Plastic formworks also can resist wear and tear, which is needed in the construction industry.

In simple words:

When construction workers build walls or slabs, they place plastic formwork in their position. Plastic formwork acts as a mold for concrete walls or slabs. Once the plastic formwork is placed in the desired position, workers will pour the concrete liquid into the plastic framework mold before leaving it overnight. After the liquid concrete is hardened, the mold is removed. Plastic formwork is usually made to build walls, columns, and slabs.

Advantages of Using Plastic Formworks

It is not surprising that plastic formwork usage has recently increased. With numerous advantages, plastic formworks have become a popular way to mold concrete.

Here are some of the benefits that you can get by using plastic formworks.

  • Durability

The very first benefit of using plastic formworks is durability. Since plastic formwork is made up of materials like polypropylene (pp)  or fiberglass-reinforced plastics, they are highly resistant to rotting, rusting, and corrosion, unlike wood or metal frameworks, which get eroded after being exposed to water or air for long periods. This durability and longevity also make it cost-effective and suitable for long-term projects. 

Example: It can be used in projects that would go on for several years, like multi-story buildings. 

  • Lightweight

Plastic formworks are very lightweight compared to other formworks (like wood and steel). Due to plastic formwork being lightweight, it can be transformed and handled efficiently, unlike wood and steel, which require more workforce and time to handle. These materials are lightweight because they are made of high polymers; it is natural for them to have a high strength-to-weight ratio.

Example: Best for use in small and medium-scale projects requiring more manual work.

  • Easy to Clean 

Another factor that adds up is making plastic formworks favorable. They are easy to clean and maintain because of how they are designed and structured. Just using water, plastic formworks can be cleaned. This easy-to-clean is very effective and efficient during re-use.

  • Cost-Effective 

Though plastic formworks can be expensive compared to traditional formworks, their reusability and low maintenance make up for the cost.

Example: Mostly used in projects like bridges and tunnels, which is economical when used multiple times.

  • Environmentally Friendly

Plastic formworks are recyclable, reusable, and more environmentally friendly than other materials. This also contributes to sustainability. Also, it reduces carbon footprint.

Example: Best to use it in eco-friendly and greenhouse projects.

  • Provides High-Quality Finishes

Plastic formwork provides flawless and high-quality finishes. This reduces the extra work that would need to be done to achieve this effect.

Example: Best to use in high-rise buildings where the exterior is the main focus.

  • Resistant to Uncertain Weather Conditions

Plastic formworks can hold on to extreme weather conditions or sudden temperature changes. From high humility to harsh winters, plastic formworks can be used.

  • Versatility and Non-Absorbent Material

Based on architectural designs, plastic formworks can be molded into any shape or size. The best example of this is a dome and arched design. Unlike wood, which absorbs water, plastic formworks don’t absorb it as it is highly resilient to water.

Example: Best to use in constructing coastal projects or projects involving water exposure (like swimming pools).

 

Disadvantages of Using Plastic Formworks

While plastic formworks offer flexibility and stability, they are durable and suitable for the environment. There are certain drawbacks you need to keep in mind.

  • Initial Cost

As mentioned earlier, plastic formworks are more costly than wood, steel, or metal materials. It is not suitable for companies that have small and limited projects. They might need help buying plastic formworks despite their longevity and reusability.

  • Recycling and Load-Bearing Capacity Issues

Though plastic formworks can be recycled, recycling and disposal are more complex. These formworks do not have high load-bearing capabilities compared with timber and steel.

  • Low Heat Endurance

Plastic formworks can stretch and change shape more than steel or wood, especially in hot places. One of the main reasons behind the expansion is due to higher thermal density. This would cause problems that could be better at handling high temperatures. And Vice versa, in low temperatures, plastic would shrink back to its original position.

Conclusion

Overall, plastic formworks are a valuable asset in the construction industry. They provide durability, lightweight design, ease of cleaning, and environmental friendliness. They are more durable than traditional materials, even with their higher initial cost. However, it is equally important to consider the potential disadvantages.  So, construction professionals must think about both sides.

Are you in need of top-notch plastic formworks for a construction project? Nova Formworks is the best plastic formwork supplier in Bangalore with a variety of high-pe­rformance, long-lasting goods. Furthermore, they have a well-established reputation for quality and reliability.

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