Core TradesQuestion 174 of 700
Rebar chairs and bar supports are used during concrete placement PRIMARILY to:
a.Speed up the concrete pour
b.Act as expansion joints in the slab
c.Reduce the amount of concrete needed
d.Hold reinforcing steel at the correct height so the required concrete cover is maintained
Explanation
Bar supports (chairs) hold the reinforcement at the specified position so that the required concrete cover is achieved and the steel is protected from corrosion. They do not speed the pour, reduce concrete quantity, or function as expansion joints.
Law Reference: 2025 CA Building Code, Chapter 19 (Concrete)Practice all 700 questions free — no signup required.
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