SETBACK / FRICTION / INFO 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

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

GreenLock Products for Soil Retaining, Soil Stabilizing, Soil Erosion Solutions, Storm water management
and Heavy Duty Drive On Hard Lawn Surfaces.

Disclaimer

The information supplied in this document is based on practical field experience, gained under typical South African conditions. It is supplied in good faith and GreenLock employees or it’s license holders or it’s agents make no claim, implication or recommendation, expressed, implied or otherwise, as to the applicability or accuracy of any information contained herein in relation to any specific project. The content is subject to change without notice.

SETBACK / FRICTION / INFO TABLE

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