Synteen

BASE COURSE REINFORCEMENT

SUBGRADE IMPROVEMENT BIAXIAL GEOGRID

SF11 is composed of high molecular weight, high tenacity multifilament polyester yarns that are woven into a stable network placed under tension. The high strength polyester yarns are coated with a polymer coating. SF Geogrids are inert to biological degradation and are resistant to naturally encountered chemicals, alkalis and acids.

SF11 INCREASES THE SERVICE LIFE OF PAVEMENT STRUCTURES BY IMPROVING:

CONFINEMENT OF BASE COURSE

1. Prevents lateral spreading of the base or sub-base aggregate
2. Allows for shear interaction to develop between the aggregate and the geogrid

INCREASED TENSILE STRENGTH OF AGGREGATE

1. SF11 geogrid will reduce applied vertical pressure of heavy loads at depth of aggregate by spreading loads over a wider area.

REINFORCEMENT PROPERTIES		TEST METHOD	MARV VALUES Lbs/ftkN/m
Ultimate Strength	MD XMD	ASTM 6637	2,388 3,870	34.9 56.5
Initial Modulus	MD XMD	ASTM 6637	178,000 172,900	2,598 2,524
Load at 2% Strain	MD XMD	ASTM 6637	526 578	7.7 8.4
2% Secant Moduli	MD XMD	ASTM 6637	26,300 28,900	383.6 421.5
Load at 5% Strain	MD XMD	ASTM 6637	792 1,042	11.5 15.2
5% Secant Moduli	MD XMD	ASTM 6637	15,840 20.840	231 304
True in place strength after site damage testing based on TRI method of “installation” damage testing with poorly graded gravel (GP) and well groomed gravel (SW).
Load at 2% Strain	MD (GP) MD (SW)	ASTM 6637 & ASTM 5818	401 490	5.9 6.6
Load at 2% Strain	XMD (GP) XMD (SW)	ASTM 6637 & ASTM 5818	521 570	7.6 8.3
Load at 5% Strain	MD (GP) MD (SW)	ASTM 6637 & ASTM 5818	795 972	11.6 14.1
Load at 5 % Strain	XMD (GP) XMD (SW)	ASTM 6637 & ASTM 5818	715 781	10.4 11.4
Coefficient of Pullout Interaction		ASTM 6706 Sandy Gravel Sand	Ci = 1.0 Ci = 1.0
Aperture Size *		Measured	MD1.0 in. XMD1.0 in.

* Synteen has the capacity to produce apertures to specific sizes.

Standard Roll Size: 12’ x 150’. STF can produce master roll lengths as well.

GP = Poorly Graded Gravel

SW = Well Groomed Gravel