Ⅰ.Product Introduction
Polypropylene Needle Punched geotextiles uses the polypropylene fiber as the main raw material, and is a synthetic material for civil engineering made by carding, lapping, needling and consolidating.
Ⅱ.Product Applications
Isolation layers of high-speed rail ballastless track
Isolation layers of airport pavement
The filter layer in the initial upstream dam surface of the ash-storage dam or tailings dam, and the filter layer of the drainage system in the backfill of the retaining wall.
Highway, railway tunnel
Ⅲ.Technical Performance
(TJ/GW113-2013) Temporary Technical Conditions for Geotextiles for Isolation Layer of High-speed Railway CRTSIII plate-type Ballastless Track
No. | Items | Unit | Required indicators |
1 | Mass per unit area | g/m2 | 700 |
2 | Thickness | mm | 3.5mm~4.5mm |
3 | Breaking Strength | KN/m | The longitudinal≥48，the transverse≥48 |
4 | Breaking Elongation | % | The longitudinal and transverse 70±20 |
5 | Bursting Strength | KN | ≥8.5 |
6 | tearing strength by trapezoid method | N | The longitudinal and transverse ≥900 |
7 | Acid and Alkali Resistance | % | Strength retention rate ≥ 90 retention rate of breaking elongation ≥ 90 |
8 | Wear resistance | % | The strength loss rate≤25 |
No. | Items | Unit | Required indicators |
1 | Mass per unit area | g/m2 | 600 |
2 | Thickness | mm | 2mm~2.5mm |
3 | Breaking Strength | KN/m | The longitudinal≥40，the transverse≥40 |
4 | Breaking Elongation | % | The longitudinal and transverse 60±20 |
5 | Bursting Strength | KN | ≥7 |
6 | tearing strength by trapezoid method | N | The longitudinal and transverse ≥700 |
7 | Acid and Alkali Resistance | % | Strength retention rate ≥ 90 retention rate of breaking elongation ≥ 90 |
8 | Wear resistance | % | The strength loss rate≤20 |
No. | Items | Unit | Indicator | ||||||||||||
110 | 130 | 150 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 1000 | 1200 | ||||
1 | Mass deviation rate per unit area | % | ±5 | ±5 | ±5 | ±6 | |||||||||
2 | Thickness | mm | ≥1.0 | ≥1.2 | ≥1.5 | ≥1.8 | ≥2.4 | ≥2.8 | ≥3.2 | ≥3.6 | ≥4.0 | ≥4.4 | ≥5.2 | ≥6.0 | |
3 |
|
| KN/m | ≥7 | ≥9 | ≥10 | ≥13 | ≥20 | ≥26 | ≥32 | ≥40 | ≥48 | ≥52 | ≥60 | ≥70 |
横向
| |||||||||||||||
4 |
Breaking Elongation | 纵向
| % | 40~80 | |||||||||||
横向
| |||||||||||||||
5 | CBR顶破强力 CBR Bursting Strength | KN | ≥1.5 | ≥1.8 | ≥2.0 | ≥2.5 | ≥3.8 | ≥4.5 | ≥5.8 | ≥7.0 | ≥8.5 | ≥9.0 | ≥11.5 | ≥14 | |
6 |
| 纵向
| N | ≥160 | ≥180 | ≥220 | ≥300 | ≥400 | ≥500 | ≥600 | ≥700 | ≥850 | ≥1000 | ≥1200 | ≥1400 |
横向 | |||||||||||||||
7 | Effective aperture (dry sieve), O90 | mm | 0.08~0.2 | ||||||||||||
Note: The mass per unit area is between the adjacent specifications in the table, and the corresponding assessment indicators are calculated according to the interpolation method; when the scope of the table is exceeded, the assessment indicators are determined by both parties. | |||||||||||||||
Ⅰ.Product Introduction
Polypropylene Needle Punched geotextiles uses the polypropylene fiber as the main raw material, and is a synthetic material for civil engineering made by carding, lapping, needling and consolidating.
Ⅱ.Product Applications
Isolation layers of high-speed rail ballastless track
Isolation layers of airport pavement
The filter layer in the initial upstream dam surface of the ash-storage dam or tailings dam, and the filter layer of the drainage system in the backfill of the retaining wall.
Highway, railway tunnel
Ⅲ.Technical Performance
(TJ/GW113-2013) Temporary Technical Conditions for Geotextiles for Isolation Layer of High-speed Railway CRTSIII plate-type Ballastless Track
No. | Items | Unit | Required indicators |
1 | Mass per unit area | g/m2 | 700 |
2 | Thickness | mm | 3.5mm~4.5mm |
3 | Breaking Strength | KN/m | The longitudinal≥48，the transverse≥48 |
4 | Breaking Elongation | % | The longitudinal and transverse 70±20 |
5 | Bursting Strength | KN | ≥8.5 |
6 | tearing strength by trapezoid method | N | The longitudinal and transverse ≥900 |
7 | Acid and Alkali Resistance | % | Strength retention rate ≥ 90 retention rate of breaking elongation ≥ 90 |
8 | Wear resistance | % | The strength loss rate≤25 |
No. | Items | Unit | Required indicators |
1 | Mass per unit area | g/m2 | 600 |
2 | Thickness | mm | 2mm~2.5mm |
3 | Breaking Strength | KN/m | The longitudinal≥40，the transverse≥40 |
4 | Breaking Elongation | % | The longitudinal and transverse 60±20 |
5 | Bursting Strength | KN | ≥7 |
6 | tearing strength by trapezoid method | N | The longitudinal and transverse ≥700 |
7 | Acid and Alkali Resistance | % | Strength retention rate ≥ 90 retention rate of breaking elongation ≥ 90 |
8 | Wear resistance | % | The strength loss rate≤20 |
No. | Items | Unit | Indicator | ||||||||||||
110 | 130 | 150 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 1000 | 1200 | ||||
1 | Mass deviation rate per unit area | % | ±5 | ±5 | ±5 | ±6 | |||||||||
2 | Thickness | mm | ≥1.0 | ≥1.2 | ≥1.5 | ≥1.8 | ≥2.4 | ≥2.8 | ≥3.2 | ≥3.6 | ≥4.0 | ≥4.4 | ≥5.2 | ≥6.0 | |
3 |
|
| KN/m | ≥7 | ≥9 | ≥10 | ≥13 | ≥20 | ≥26 | ≥32 | ≥40 | ≥48 | ≥52 | ≥60 | ≥70 |
横向
| |||||||||||||||
4 |
Breaking Elongation | 纵向
| % | 40~80 | |||||||||||
横向
| |||||||||||||||
5 | CBR顶破强力 CBR Bursting Strength | KN | ≥1.5 | ≥1.8 | ≥2.0 | ≥2.5 | ≥3.8 | ≥4.5 | ≥5.8 | ≥7.0 | ≥8.5 | ≥9.0 | ≥11.5 | ≥14 | |
6 |
| 纵向
| N | ≥160 | ≥180 | ≥220 | ≥300 | ≥400 | ≥500 | ≥600 | ≥700 | ≥850 | ≥1000 | ≥1200 | ≥1400 |
横向 | |||||||||||||||
7 | Effective aperture (dry sieve), O90 | mm | 0.08~0.2 | ||||||||||||
Note: The mass per unit area is between the adjacent specifications in the table, and the corresponding assessment indicators are calculated according to the interpolation method; when the scope of the table is exceeded, the assessment indicators are determined by both parties. | |||||||||||||||
