SETBACK TABLE

S12, R12 & V12 Setback Tables & Friction Co-Efficients

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