Pp Biaxial Geogrid 20/20 30/30 40/40 Kn Plastic Geogrid For Civil
Engineering Construction
HQ1: Typical Geogrid
What is Geogrid?
The use of unidirectional grid can enhance the subgrade of the
project, reduce the loss of subgrade materials and cause
unnecessary subgrade deformation and cracking, so as to effectively
prevent the diffusion load, bear greater bearing load, improve the
stability and bearing strength of the subgrade, and prolong the
service life. Biaxial geogrid biaxial tensile plastic geogrid is a
kind of high-strength geogrid formed by extrusion and then
longitudinal and transverse stretching with polypropylene as the
main raw material. It can also improve the bearing capacity of the
soil, reduce the pressurization of external forces, reduce the
cost, have a long service life, and save the cost. It is the first
choice for engineering projects. Its product advantages can also be
used in subgrade reinforcement, slope protection, parking lot,
wharf, airport, highway, etc., which can maintain and enhance
geological functions effectively and long-term.
Specifications:
- Product name: geogrid.
- Material: plastic, polyester, high-density polyethylene.
- Color: black, green or as your requests.
Specifications: Biaxial geogrid| Item | Properties | Units | MD Values1 | XMD Values1 |
|---|
| 1 | Aperture dimensions2 | mm (in.) | 25 (1.0) | 33 (1.3) |
|---|
| 2 | Minimum rib thickness2 | mm (in.) | 0.76 (0.03) | 0.76 (0.03) |
|---|
| 3 | Tensile strength at 2% strain3 | kN/m (lb/ft.) | 4.1 (280) | 6.6 (450) |
|---|
| 4 | Tensile strength at 5% strain3 | kN/m (lb/ft.) | 8.5 (580) | 13.4 (920) |
|---|
| 5 | Ultimate tensile strength3 | kN/m (lb/ft.) | 12.4 (850) | 19.0 (1,300) |
|---|
| Structural Properties |
|---|
| 6 | Junction efficiency4 | % | MD Values1 | |
|---|
| 7 | Flexural stiffness5 | mg-cm | 250.000 | |
|---|
| 8 | Aperture stability6 | m-N/deg | 0.32 | |
|---|
| Durability |
|---|
| 9 | Resistance to installation damage7 | %SC/%SW/%GP | 95/93/90 | |
|---|
| 10 | Resistance to long term degradation8 | % | 100 | |
|---|
| 11 | Resistance to UV degradation9 | % | 100 | |
|---|
| Dimensions |
|---|
| 12 | Roll sizes | m (ft.) | 3.0 × 75.0 (9.8 × 246); 4.0 × 75.0 (13.1 × 246) |
|---|
HQ2: Biaxial geogrid.
HQ3: Black biaxial geogrid detail.
HQ4: Geogrid Producing.
HQ5: Black biaxial geogrid sample with small mesh sizes.
HQ6: Measuring the length of black biaxial geogrid sample.
HQ7: Black
perforated geocell.
HQ8: Black perforated geocell.Fuction:
Uniaxial geogrids are designed with the specific purpose of
enduring stress in one single direction. They are formed by
stretching the ribs in a longitude direction and their tensile
strength is stretched in the machine direction. This means they are
perfect for both wall and slope applications such as retaining
walls, landfill liner systems, embankments over soft soils, and
extra steep earthwork slopes.
Features:
- Cost effective.
- High seam strength.
- Good erosion control.
- High in-plane stiffness.
- Good aperture stability.
- Excellent load distribution.
- Long term structural stability.
- Excellent corrosion resistance.
- Effective mechanical interlock system.
- Good corrosion resistant performance.
Applications:
When geogrid is applied in high fill subgrade, the position and
number of layers of geogrid shall be determined first. In the
design, the main idea is to determine the layer of geogrid first,
and then determine the number of layers according to the mechanical
properties of geogrid. For example, in the reconstruction and
expansion project of Shenyang Dalian Expressway, there are many
inland river networks and most paddy fields, which is not conducive
to the stability of subgrade. When using geogrid for construction,
the construction party shall lay a layer of steel plastic composite
belt grid 20cm below the subgrade top. At this time, the design
structure and combined force of geogrid shall be designed with the
longitudinal breaking load per linear meter as 60kn / M and the
transverse breaking load per linear meter as 20KN / M as the
control load. In the design of geogrid, we should not only ensure
its sufficient strength, but also calculate the bursting strength,
puncture strength, holding tensile strength, elongation, tear
strength and other properties of the material. The specific project
shall be determined according to the nature of engineering
structure, size, use requirements, load, construction conditions
and the characteristics of geosynthetics.
Construction method
Construction method of biaxial geogrid: excavate the subgrade bed,
set sand cushion (height difference not more than 10 cm), roll it
into a platform, and lay the grid. The longitudinal axis shall be
consistent with the main stress direction. The longitudinal lap
shall be 20 cm and the transverse lap shall be 10 cm. The lap joint
shall be bound with plastic tape, and the paved grid shall be fixed
to the ground with U-nails every two meters, The geogrid laid shall
be backfilled with soil materials in time, and the number of layers
of geogrid laid depends on the technical requirements.
HQ9: Geogrid for paving roads.
HQ10: Geogrid for
soft soil reinforcement.
HQ11: Geogrid rolls are waiting for transport.
Please feel free to send email.
Leo(International department manager)
Email: Leo@hengquan-china.com
Phone/Whatsapp/Wechat: +8615031817097
