Bulkhead Formwork

Definition

Bulkhead formwork is temporary formwork that blocks fresh concrete from a section of forms or closes the end of a form at a construction joint.

Purpose

Bulkhead formwork is used to create a precise end or edge to a concrete pour, ensuring that the concrete remains in the designated area and forms a clean, controlled construction joint. This is important in phased construction projects or when pouring concrete in sections.

Examples of Use

1. Concrete Walls: Using bulkhead formwork to stop the flow of concrete at specific points in wall construction, creating clean edges for joints.
2. Bridge Construction: Implementing bulkhead formwork to manage the concrete pour in bridge piers and abutments.
3. Floor Slabs: Closing off sections of floor slabs during multi-phase pours to maintain control over the concrete placement.

Related Terms

• Formwork: The temporary or permanent molds into which concrete is poured to form structural elements.
• Construction Joint: A joint where two successive pours of concrete meet, often using bulkhead formwork to define the joint.
• Shuttering: Another term for formwork, used to shape and support wet concrete until it hardens.

Notes

Properly installed bulkhead formwork ensures the stability and accuracy of concrete structures. It is essential to follow precise measurements and secure the formwork to prevent any movement during the concrete pour.