Bond Breaker

Definition

A material used to prevent adhesion of newly placed concrete to other surfaces.

Purpose

Bond breakers are used to ensure that freshly placed concrete does not stick to adjoining surfaces, allowing for easy separation. This is important in construction processes where layers or elements need to be demolded or moved without damage.

Examples of Use

• Applying bond breakers on formwork before pouring concrete to facilitate easy removal of the forms.
• Using bond breakers between concrete pavement layers to prevent bonding and allow for independent movement.
• Installing bond breakers in tilt-up construction to prevent panels from sticking to the casting slab.

Related Terms

• Formwork: Temporary or permanent molds used to shape concrete until it hardens.
• Demolding: The process of removing concrete from its mold after it has set.
• Concrete Pavement: A surface layer made of concrete, used for roads, walkways, and other flat surfaces.

Notes

Choosing the right bond breaker for the specific application is essential for achieving the desired results. It is important to follow the manufacturer's instructions for application to ensure effectiveness.