315-16 MANUAL OF CONCRETE PRACTICE 2. Owner’s quality assurance/control requirements;
3. Transportation;
4. Epoxy coating and galvanizing;
5. Painting, dipping, or coating;
6. Spirals and continuous hoops;
7. Shearing to special tolerances;
8. Square (saw-cut) ends;
9. Beveled ends or ends not otherwise defined;
10. Bar threading;
11. Special bundling and tagging;
12. Overlength bars, and overwidth bars, or both; and
13. Welding.
4.3—Tolerances There are established, standard industry fabricating toler-
ances that apply unless otherwise shown in the project
specifications or structural drawings.
Fig. 8
and
9
define these
tolerances for the standard bar bends shown in
Fig. 10
. Note
that tolerances more restrictive than these may be subject to an
extra charge. For further tolerance information, see ACI 117.
CHAPTER 5—SUPPORTS FOR REINFORCING STEEL 5.1—General The contract documents usually outline the need and re-
quirements for reinforcing steel supports. The following re-
quirements are applicable to supports for reinforcing bars,
and may be applicable to supports for wire or welded-wire
fabric.
5.1.1General requirements—When the contract docu-
ments specify merely that reinforcing steel “shall be accu-
rately placed and adequately supported before the concrete is
placed, and shall be secured against displacement within per-
mitted tolerances,” the contractor is free to select and pur-
chase the type and class of wire bar supports, precast block,
or other materials for each area.
5.1.2 Specific requirements—When the contract documents
specify types or material for bar supports in different areas,
the detailer for the supplier must indicate these materials and
areas in which they are to be used, number, size, type, ar-
rangement, and quantities required. These details must be
outlined or referenced to a generally accepted document that
shows such arrangements.
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