|
Table 3: |
|||
| Item | AASHTO
M284-97 (Coating Application, Fabrication & Field) |
ASTM
D3963-99 (Fabrication & Field Only) |
ASTM A934-97 (Coating Application After Fabrication) |
|
Damage |
Total bar area covered by patch material shall not exceed 5% |
Maximum amount of repaired damaged shall not exceed 2% of surface area in a given foot of bar Total area covered by patch material shall not exceed 5% |
Maximum amount of repaired damaged shall not exceed 2% of surface area in a given foot of bar |
|
Repair |
Repair all visible damage; Minimum thickness = 7 mils |
Contractor shall be responsible for repair of field damage Repair all visible damage; Minimum thickness = 7 mils |
Repair all visible damage |
|
Storage |
Store off the ground on protective cribbing |
Cover if stored outdoors for more than 2 months Store off the ground on protective cribbing |
Coated and uncoated steel should be stored separately Store off the ground on protective cribbing Cover if stored outdoors for more than 2 months |
|
Bar Identification |
Maintain identity of coated bars |
Maintain identity (including heat no. & mill tests)of coated bars |
Maintain identity (including heat no. & mill tests)of coated bars |
|
Steel Placement |
Not specified |
Use coated tire wire Use bar supports coated with or made of dielectric material |
Use coated wire Use bar supports coated with or made of dielectric material |
|
Handling |
All systems for handling shall have padded contact areas Nylon or padded bundling bands Lift with strong back, spreader bar or multiple supports Shall not drop or drag bars or bundles |
All systems for handling shall have padded contact areas Nylon or padded bundling bands Lift with strong back, spreader bar or multiple supports Shall not drop or drag bars or bundles |
All systems for handling shall have padded contact areas Nylon or padded bundling bands Lift with strong back, spreader bar or multiple supports Shall not drop or drag bars or bundles |
|
Concreting |
Not specified |
Note: use of resilient headed vibrators recommended |
Walking on coated bars should be minimized Note: use of resilient headed vibrators recommended |