What is Concrete Formwork?

Last Updated on March 7, 2023 by Jose Villegas Jr.

What is Concrete Formwork?

Concrete formwork, or concrete shuttering, is a temporary or permanent mold or frame used to hold wet concrete in place until it sets and hardens, creating the desired shape and structure for a construction project.

In this article, we will explore the different types of concrete formwork and their applications in the construction industry.

Temporary formwork is more common and can be made of heavy-duty materials such as aluminum, steel, plastic, plywood, or timber, and can be reused for other projects after its initial use. Permanent formwork, on the other hand, becomes part of the construction and is often made of foam material.

Concrete formwork is widely used in various construction projects, including building construction, bridge construction, highway and overpass construction, industrial and energy construction, viaduct and tunnel construction, wastewater treatment plant construction, and more.

Different Styles and Types of Formwork

Different styles and types of formwork are available to meet the specific needs of each project.

These include:

• engineered formwork systems
• timber formwork
• permanent insulated formwork
• plastic formwork
• stay-in-place formwork

The choice of formwork depends on the project’s requirements, and each type has its advantages and disadvantages.

Engineered formwork systems are prefabricated structures with metal frames that are quick to install and use, durable, and easy to remove once the concrete sets.

Timber formwork is a popular choice but takes longer to install and is less durable than metal formwork. Permanent insulated formwork is usually made of foam and improves the thermal conditions of the structure.

Plastic formwork is modular and interlocking, making it easy to build and remove, and is ideal for low-cost mass housing projects. Stay-in-place formwork, made of plastic, is a permanent type of formwork that reinforces the strength of concrete structures.

Concrete formwork has been used in construction for centuries and remains a reliable method of achieving precise concrete shapes quickly and efficiently.