Corrosion Test of Friction Bolts Part 3
The specimens were randomly placed in the test cabinet in the order shown in Table III to avoid any systematic error due to variations in the test conditions in different parts of the salt-spray cabinet. The bolt-plate sets were supported on plastic racks at an angle of approximately 30° from the horizontal.
| Table III: Test Order | ||
| TEST | BOLT & PLATE | |
| 6 | Galvanized, installed | |
| 2 | Galvanized, new | |
| 7 | Steel | |
| 4 | Galvanized, installed | |
| 8 | Steel | |
| 1 | Galvanized, new | |
| 5 | Galvanized, installed | |
| 3 | Galvanize, new | |
| 9 | Steel | |
The initial weight and weight loss as a percentage of the initial weight is shown in Table IV for each specimen.
| Table IV: Weight and Weight Loss | |||||||
| TEST | BOLT | WT. | LOSS | PLATE | WT. | LOSS | |
| g | % | g | % | ||||
| 1 | Gal. new | 953 | 1.26 | Galvan. | 519 | 0.77 | |
| 2 | Gal. new | 784 | 1.40 | Galvan. | 522 | 0.57 | |
| 3 | Gal. new | 793 | 1.13 | Galvan. | 524 | 0.57 | |
|
|
1.26 | 0.64 | |||||
| 4 | Gal. install | 918 | 0.87 | Steel | 522 | 0.57 | |
| 5 | Gal. install | 779 | 1.16 | Steel | 522 | 0.38 | |
| 6 | Gal. install | 767 | 1.43 | Steel | 520 | 1.15 | |
| 1.15 | 0.70 | ||||||
| 7 | Steel | 780 | 2.56 | Steel | 729 | 2.06 | |
| 8 | Steel | 776 | 2.71 | Steel | 732 | 2.05 | |
| 9 | Steel | 764 | 1.96 | Steel | 729 | 1.51 | |
| 2.41 | 1.87 | ||||||
