Does Rebar Rust in Concrete? Corrosion Explained
Why rebar does not normally rust in concrete, what starts corrosion (salt, carbonation, cracks, thin cover), why rusty bar is fine to pour, and how to prevent it.
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Straight answers on rebar, structural steel, beams, lintels and fabrication, from the team that cuts, bends and welds it every day.
Why rebar does not normally rust in concrete, what starts corrosion (salt, carbonation, cracks, thin cover), why rusty bar is fine to pour, and how to prevent it.
Does rebar stop concrete from cracking? What rebar really does, why concrete cracks anyway, when Ontario code requires rebar, and what happens without it.
When the Ontario Building Code requires fire protection on structural steel, how steel behaves when heated, the exceptions, and the main fireproofing methods.
When structural steel needs primer, paint or galvanizing in Ontario: code minimums, interior vs exterior steel, and steel that should stay bare.
What sets steel dowel bar prices in Canada: rebar vs smooth pavement dowels, diameter, length, coating, baskets and quantity, and how to get a firm quote.
Dowel bars vs rebar explained: smooth dowels that let joints move, deformed rebar dowels that tie pours together, and when rebar can be used as a dowel.
Dowel bars vs tie bars in rigid pavement: smooth dowels that carry load across moving joints, deformed tie bars that hold lanes together, and how to order each.
What size hole to drill for 10M and 15M rebar dowels, why the adhesive maker's data sets the bit size, and how to choose an epoxy or hybrid adhesive.
Drilling holes and cutting notches in steel beams: why the engineer must approve them, where holes do least harm, bolt hole sizes, tools, and copes done in the shop.
What an embed plate is, how steel plates are anchored into concrete with studs or bars, edge distance and layout rules, and how to get embeds made and set on time.
Should a steel post be set in concrete or bolted down on a base plate? Strength, rust at the concrete line, code rules for house columns and how to protect posts.
Why epoxy-coated rebar costs more than black bar in Canada: coating, fabrication order, longer laps, accessories and handling, and how to compare quotes.
Epoxy-coated rebar uses the same sizes and nominal weights as black bar. Weight charts for 10M to 55M and US #3 to #8, grades, 10 mm bar and ordering notes.
What goes in an epoxy-coated rebar submittal: product data sheets, mill and coating certificates, plant certification, patching material, bar lists and handling.
How damaged epoxy-coated rebar is touched up on site: approved patching material, the 2% repaired-area limit, surface prep, cure, cut ends and when to reject a bar.
Epoxy-coated vs galvanized (HDG) dowel bars for slab and pavement joints: how each coating protects, the standards, handling, Ontario practice and alternatives.
Epoxy-coated vs standard (black) rebar: how the coating works, whether it rusts, its real advantages and disadvantages, and when plain bar is the better choice.
Equal vs unequal leg steel angle: how each is sized and named, why long leg vertical matters, a same-weight comparison, and which jobs suit each angle.
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