Paver Pete presents the differences between woven and non-woven geotextile in segmented retaining wall construction.
A soil separator prevents migration of the soil material into an aggregate base or other types of base.
During the construction of a base, a soil separation fabric is not necessary when the soil type is sandy, and even less when choosing flowable fill as base material, which is liquid concrete.
However, it’s a different situation when you are faced with a clay soil, what we have most of the time in North America.
In this situation, we could use a nonwoven fabric.
We prefer a woven fabric because it has bilateral tension ability.
The loads will be dispersed as they are placed on it, and any settlement will be bridged.
STEP 1: Excavate a trench.
STEP 2: Place material into the trench, encapsulating the aggregate base.
STEP 3: Tension the geotextile by driving spikes in the corners.
It should have a tension rate of 3% to optimize its performance.
STEP 4: Apply 24 to 36 inches overlap and complete the stretch of the base.
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