reinforcing bar
Sign in to savethumb|Two bundles of full-length rebar, which will be placed, bent, or cut as required by installation
Article
22 sectionsContents
- History
- Use in concrete and masonry
- Physical characteristics
- Sizes and grades
- US sizes
- Canadian sizes
- European sizes
- Australian sizes
- New Zealand
- India
- Jumbo and threaded bar sizes
- Grades
- Placing rebar
- Stirrups
- Welding
- Reinforcement placement in rolls
- Mechanical connections
- Safety
- Designations
- Reuse and recycling
- References
- External links
thumb|Two bundles of full-length rebar, which will be placed, bent, or cut as required by installation
Rebar (short for reinforcement bar or reinforcing bar), known when massed as reinforcing steel or steel reinforcement, is a tension device added to concrete to form reinforced concrete and reinforced masonry structures to strengthen and aid the concrete under tension. Concrete is strong under compression, but has low tensile strength. Rebar usually consists of steel bars which significantly increase the tensile strength of the structure. Rebar surfaces feature a continuous series of ribs, lugs or indentations to promote a better bond with the concrete and reduce the risk of slippage.