Foundation Machine
Rebar Installation
Best Practices for Border Footer Rebar Cage Fabrication and Installation
Introduction
Border footer rebar cages play a critical role in concrete reinforcement and long-term structural integrity. Our approach emphasizes precision and adherence to industry standards to achieve optimal results.
Fabrication Process
All border footer rebar cages are carefully fabricated and welded in our shop. To ensure a perfect fit for each piece, we created a jig for the mockup process. This tool guarantees that every cage fits precisely into its designated space.
Installation Overview
The accompanying picture demonstrates the successful installation of the rebar cages. This visual evidence highlights the importance of proper planning and execution throughout the fabrication and installation process.
Principles of “Rebar Done Right”
Achieving quality results with rebar requires precise placement, proper support, correct tying methods, and strict adherence to established standards such as those from the American Concrete Institute (ACI) and the Concrete Reinforcing Steel Institute (CRSI).
Proper Planning and Material Selection
- Engineering Specifications: Always follow the project’s specific plans regarding rebar size, spacing, and bending requirements, as designed by a qualified engineer.
- Material Quality: Use rebar with appropriate deformations (ribs) to ensure a strong mechanical bond with the concrete.
- Weldability: Only weld rebar that is stamped with a “W,” and ensure that welding is performed by a qualified welder using proper procedures.
Correct Placement and Support
- Spacing and Coverage: Position rebar at the correct distance from forms and from other bars to guarantee sufficient concrete cover. This practice helps prevent corrosion and maintains long-term integrity. While spacing layers 12 to 18 inches apart is common, always follow project-specific requirements.
- Support: Utilize rebar chairs or equivalent support systems to hold the bars at the specified height and distance from the subgrade before and during the concrete pour. Place supports at appropriate intervals to prevent the rebar from bending under its own weight.