Historical Reinforcement Bar sizes and strength
Historical Reinforcement Bar sizes and strength
(OP)
I am currently checking a slab that was design in 1967 for a new load, it has reinforcement bar designations of S501 & S502. Does anybody know what size and strength these bars would be, or where I can find out.
Thanx
Thanx






RE: Historical Reinforcement Bar sizes and strength
RE: Historical Reinforcement Bar sizes and strength
JAE is on target with the designation. An "S" before the bar often indicates a slab use. The 5 is the bar size, and the last two digits ("01", "02") indicate where they are on the bill of materials, so each bar of each length and fabrication (hooks, etc.)has a unique identifier.
RE: Historical Reinforcement Bar sizes and strength
On an aside, I have an old factory steel frame building with concrete floor slabs that will be converted to apartments. Preliminary reports from the field say that the slab rebars are square. 1" square bars on edge so it looks like diamonds. I have not been to the sight yet. Anyone ever hear of this?
RE: Historical Reinforcement Bar sizes and strength
Out west in the Rocky Mountain states, I have seen
square bar stock twisted for use as reinforcement bar
in concrete.