Pullout Testing: BaseGrid Geogrids

Pullout Testing

BaseGrid* geogrids have been comprehensively tested in the laboratory. These tests include both index and performance tests which substantiate the field results that multi-layer geogrids reinforce and stabilize effectively as single layer biaxial geogrids.

 

PRODUCT NAME  PROPERTY BASEGRID* 22 BASEGRID* 22 BASEGRID* 22 BASEGRID* 22 BASE GRID* 22 TENSAR BX 1100 TENSAR BX 1100 TENSAR BX 1100 TENSAR BX 1100
Test Direction   TD TD TD TD TD TD TD TD TD
Normal Stress kPa 40 30 20 20 10 40 30 20 10
Test  n 6 14 5 8 7 11 27 10 12
Max. Pullout Strength KN/m 25.72 23.72 18.27 18.91 9.58 19.50 17.10 13.76 6.70
Max. Pullout Stress kPa 43.96 40.55 31.24 32.33 16.38 33.30 29.20 23.52 11.40
Failure Type   Tension Tension Pullout Pullout Pullout Tension Tension Pullout Pullout
Ø soil deg 38.00 38.00 38.00 38.00 38.00 38.00 38.00 38.00 38.00
Specimen Length, L m 0.585 0.585 0.585 0.585 0.585 0.585 0.585 0.585 0.585
Pullout Interaction Factor fpo 0.70 0.87 1.00 1.03 1.05 0.53 0.62 0.75 0.73

 

 

PRODUCT NAME  PROPERTY BASEGRID* 22 BASEGRID* 22 BASEGRID* 22 BASEGRID* 22 BASE GRID* 22 TENSAR BX 1100 TENSAR BX 1100 TENSAR BX 1100 TENSAR BX 1100
Test Direction   TD TD TD TD TD TD TD TD TD
Normal Stress kPa 30 20 10 30 20 10 30 20 10
Test  n 17 15 16 23 21 22 20 18 19
Max. Pullout Strength KN/m 24.93 18.71 10.53 26.14 17.70 10.18 22.00 14.90 7.60
Max. Pullout Stress kPa 42.62 31.99 17.99 44.69 30.26 17.40 28.30 25.50 13.00
Failure Type   Pullout Pullout Pullout Pullout Pullout Pullout Pullout Pullout Pullout
Ø soil deg 38.00 38.00 38.00 38.00 38.00 38.00 38.00 38.00 38.00
Specimen Length, L m 0.585 0.585 0.585 0.585 0.585 0.585 0.585 0.585 0.585
Pullout Interaction Factor fpo 0.91 1.02 1.15 0.95 0.97 1.11 0.80 0.82 0.83

*US Fabrics' BaseGrid 22 & BaseGrid 33 are private label versions of the Tenax MS220 & MS330

Pullout Strength Vs Normal Stress