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Multi-rib tensile strength test
Test equipment : Korea Apparel Testing & Research Institute
      (KATRI)
Standard test method : CRE-type tensile tester
Testing organization: Korea Institute of Construction Technology

Classification
Details
Tester
     CRE-type tensile tester
Temperature
     21±2℃
Humidity
     50~70%(Relative humidity)
Tensile velocity
     20±5%/min
Sample width
     20cm(For geogrid samples, more than one-centimeter space was spared from
     the cutting point.)
Numbers of samples
     Usually 5 samples are tested but it can change depending on the reliability test
     results.
     (Failed samples that showed a sharp slide on the clamp or excessive level of
       eccentricity are excluded)
Tested qualities
     Maximum tensile strength, Tensile stress, Modulus of tensile elasticity,
     Tensile stress curve

※ General properties of geogrid samples and results of Multi-rib tensile strength test

Types of geogrid
Material and manufacturing method
Results of Multi-rib tensile strength test
Tensile strength (t/m)
Tensile stress (%)
TOTOGRID 4T
PET flat ribs geogrid
welded to laser
5.27
7.4
TOTOGRID 7T
8.31
7.0
TOTOGRID 10T
11.11
6.8

※ Results of warp direction test

Classification
Warp direction
TOTOGRID 4T
TOTOGRID 7T
TOTOGRID 10T
Number of times tested
Multi-rib tensile strength
(t/m)
Tensile stress
(%)
Multi-rib tensile strength
(t/m)
Tensile stress
(%)
Multi-rib tensile strength
(t/m)
Tensile stress
(%)
1
5.19
6.8
8.25
6.7
11.17
6.9
2
5.20
7.1
8.55
6.9
10.41
6.7
3
5.33
7.5
8.19
7.5
10.85
6.6
4
5.35
7.7
8.76
7.0
11.94
7.2
5
5.28
7.8
7.78
7.1
11.18
7.0
Average
5.27
7.4
8.31
7.0
11.11
6.8

※ Results of weft direction test

Classification
Weft direction
TOTOGRID 4T
TOTOGRID 7T
TOTOGRID 10T
Number oftimes tested
Multi-rib tensile strength
(t/m)
Tensile stress
(%)
Multi-rib tensile strength
(t/m)
Tensile stress
(%)
Multi-rib tensile strength
(t/m)
Tensile stress
(%)
1
4.45
6.9
7.59
5.7
10.13
7.5
2
5.26
6.7
7.22
5.2
10.53
7.9
3
4.94
6.4
6.43
4.5
11.10
8.0
4
4.32
6.9
7.78
5.6
10.21
7.2
5
4.32
6.9
7.48
6.2
9.20
6.5
Average
4.70
6.7
7.30
5.4
10.23
7.4
 
Head office : 1214, Garak-daero, Gangseo-gu, Busan, Republic of Korea       Tel : 070-4827-4066       Fax : 055-346-1724
Branch(factory) : 103-63, Gomo-ro 324beon-gil, Jillye-myeon, Gimhae-si, Gyeongsangnam-do, Republic of Korea       
                          Tel. 82-55-346-1722~3    l   Fax. 82-55-346-1724    l   E-mail. totogrid@naver.com
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