What is Formwork Construction?

Formwork construction is essential for creating the foundation that determines a building's strength and earthquake resistance. The design of the formwork varies for each building, making it a crucial step. This method is commonly used for constructing reinforced concrete buildings, including large structures and residential home foundations.

The following is an overview of the steps involved in formwork construction.

Formwork construction involves using processed wooden boards or plywood to create molds into which concrete is poured and shaped. This process is crucial for constructing reinforced concrete buildings and is typically carried out by specialized craftsmen known as formwork carpenters. Due to its impact on construction quality, the industry standard allows a vertical accuracy deviation of ±3mm. Exceeding this deviation can cause distortions in the building, requiring a high level of skill and experience from the craftsmen.

The Flow of Formwork Construction

Material Takeoff

Review the construction drawings to determine the dimensions and shapes of columns, beams, floors, and walls where concrete will be poured. Create detailed drawings and order the necessary materials.

Processing

Using the materials ordered during the takeoff, create the processed components. Plywood and wooden strips are commonly used for this purpose.

Layout

Mark the positions on-site where the formwork will be installed. Pre-marking these positions helps eliminate waste and errors during installation.

Erection

Based on the layout markings, erect the processed components and panels. This step must be done meticulously since the erected formwork determines the building's shape. Use a level to repeatedly check for vertical accuracy.

Tightening

Secure the erected formwork using form ties and scaffolding pipes. When concrete is poured, pressure is exerted from the inside of the formwork outward. If the formwork is not properly tightened, it can deform, making this a crucial step.

Concrete Pouring

Pour ready-mixed concrete into the formwork. This task is performed by specialized contractors. Formwork carpenters monitor the process closely to check for any issues or impacts on the formwork.

Formwork Removal

After confirming that the poured concrete has gained sufficient strength, remove the formwork. This process is done gradually over several days.

Completion of the Structure

Once the formwork removal is complete, the formwork construction is finished. Clean the site to remove any debris or dirt before moving on to the finishing work.

Formwork Construction as the Foundation of a Building

Formwork construction involves multiple steps, each of which must be executed without error. It is a critical process that sets the foundation of the building, ensuring precision and accuracy throughout. Various formwork materials are available, each suited for different types of construction. Selecting the appropriate formwork ensures higher precision and quality in construction.