TECHNICAL - S12, R12 & V12 Setback Tables & Friction Co-Efficients
| Setback Table for S12, R12 & V12 |
| Wall Angle β |
50 |
55 |
60 |
65 |
70 |
75 |
80 |
85 |
| Setback mm |
184 |
154 |
127 |
103 |
80 |
59 |
39 |
19 |
Note: For the V12 Block:
- A setback of less than 21mm allows soil to fall through the blocks
- A setback of 63 mm is required to align concave & convex sections of the block
Friction Co-efficients for S12, R12 & V12 (ų) |
S12 |
R12 |
V12 |
0.737324 |
0.688992 |
0.698587 |
|
