SUBGRADE IMPROVEMENT BIAXIAL GEOGRID
TerraGrid B100 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. TerraGrid Geogrids are inert to
biological degradation and are resistant to naturally encountered chemicals,
alkalis and acids.
TerraGrid
B100 increases the service life of pavement structures by improving the
confinement ot the base
course. B100 prevents lateral spreading
of the base or sub-base aggregate and allows for shear interaction to develop
between the aggregate and the geogrid. TerraGrid B100 geogrid will
reduce applied vertical pressure of heavy loads at depth of aggregate by spreading the load over a wider area.
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REINFORCEMENT PROPERTIES |
TEST METHOD |
MARV VALUES Lbs/ft
kN/m |
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|
Ultimate Strength |
MD XMD |
ASTM-6637 |
2388 3870 |
34.9 56.5 |
|
Initial Modulus |
MD XMD |
ASTM-6637 |
|
|
|
2% Strain |
MD XMD |
ASTM-6637 |
526 578 |
7.68 8.43 |
|
5% Strain |
MD XMD |
ASTM-6637 |
1042 792 |
15.2 11.5 |
|
True in place strength
after site damage testing based on TRI method of “installation” damage
testing with coarse gravel (CG) and sandy gravel (SG). |
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|
2% Strain |
MD (CG) MD (SG) |
ASTM-5818 TRI/Method |
401 490 |
5.85 65.5 |
|
2% Strain |
XMD (CG) XMD (SG) |
ASTM-5818 TRI/Method |
521 570 |
7.60 8.31 |
|
5% Strain |
MD (CG) MD (SG) |
ASTM-5818 TRI/Method |
795 972 |
11.6 14.1 |
|
5 % Strain |
XMD (CG) XMD (SG) |
ASTM-5818 TRI/Method |
715 781 |
10.4 11.4 |
|
Coefficient of Pullout Interaction |
|
ASTM-6706 Sandy Gravel Sand |
Ci = 1.0
Ci = 1.0
|
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|
Aperture Size |
|
Measured |
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