Location of rebar in 6" slab
Location of rebar in 6" slab
(OP)
Where should rebar be placed in a 6" concrete bridge deck? A friend is suggesting 2 layers of rebar, one about 2" below the top surface, the other 2" above the bottom. Are 2 layers really necessary?
What is the best spacing to use between the bars?
This is a vehicle bridge (cars), about 10' x 22'. Many thanks for sharing your expertise
-Joey
What is the best spacing to use between the bars?
This is a vehicle bridge (cars), about 10' x 22'. Many thanks for sharing your expertise
-Joey






RE: Location of rebar in 6" slab
While this is most likely a private application, most bridge deck slabs are 8.5" with the minimum being 7.5. Thus you should give some thought to increasing the slab thickness. The smaller slab will result in larger rebar, which, in turn, will result in serviceability problems and placement problems.
The spacing of the reinforcing would be controlled by the design.
For more information, please contact your local building enforcement official. They can be very helpful and provide some insight so that the constructed product doesn't fall apart only a few months later.
RE: Location of rebar in 6" slab
RE: Location of rebar in 6" slab
If bars are structural, then slab thickness might be a tad thin.
Bars could be epoxy coated.
RE: Location of rebar in 6" slab
RE: Location of rebar in 6" slab