Setback Table

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

 

Coefficient of Friction (µ)

S12 R12 V12
0.737324 0.688992 0.698587

Ckick here for more detail 

Block Infill Information

   Units per m²  block mass kg  block infill volume m3

 mass of wall 

including soil kg/m²

S12 Smoothface  12 27  0.0132   549
R12 Rockface  12 28  0.0132  561 
V12 Versatileface 12 22 0.0095 428