Plastic Polypropylene Pe Unidirectional Uniaxial Tensile Plastic Geogrid For Roadbed Reinforcement
Uniaxial Plastic Geogrid Introduction
Polyethylene uniaxially stretched geogrid is made of high-density polyethylene (HDPE) as raw material, plasticized, extruded, punched, heated, and stretched. Through stretching, the originally scattered chain-shaped molecules are reoriented to a linear state, which fully improves the tensile strength and rigidity of the grid. Laying it in the soil, through the occlusion and interlocking between the grid mesh and the soil, a stress transmission mechanism is formed, so that the local load can quickly and effectively spread to a large area of soil, thereby achieving The purpose of reducing local damage stress and increasing the service life of the project.
The outstanding advantage of polyethylene uniaxially stretched geogrid is that it has little tendency to deform (creep) under long-term continuous load, and its creep resistance is much better than other geogrids, which is important for improving the service life of the project. effect.
This product is suitable for the construction of roads, railways and reinforced retaining walls, dams, bridge decks, steep slopes and geocells on the coast of rivers and lakes. Its function is to increase the bearing capacity of the retaining wall or dam, extend the service life, reduce the floor space, shorten the construction period, reduce the construction cost, and reduce the maintenance cost.
The unidirectionally stretched geogrid is formed by extruding a high molecular polymer into a thin plate, punching a regular mesh, and then stretching it longitudinally. In this process, the polymer becomes a oriented linear state and forms an oblong network integral structure with uniform distribution and high node strength. This kind of structure has quite high tensile strength and tensile modulus, especially our company's products of this kind have a high early stage (elongation rate of 2%-5%) tensile strength and tensile modulus that exceed the international level. . It provides the soil with an ideal interlocking system for bearing and spreading forces. The product has high tensile strength (>150Mpa), adapts to various soils, and is currently a widely used reinforcement material.
Uniaxial Plastic Geogrid Specification
| Properties |
GG60PP |
GG80PP |
GG110PP |
GG150PP |
GG260PP |
GG300PP |
| Tensile Strength (kN/m) |
60 |
80 |
110 |
150 |
260 |
300 |
| Elongation Ratio |
≤10% |
≤10% |
≤10% |
≤10% |
≤10% |
≤10% |
| Strength at 2% Elongation (≥kN/m) |
17 |
26 |
32 |
45 |
94 |
105 |
| Strength at 5% Elongation (≥kN/m) |
35 |
48 |
64 |
90 |
185 |
195 |
| Roll Length (m) |
100 |
100 |
50 |
50 |
50 |
50 |
| Roll Width (m) |
1-3 |
1-3 |
1-3 |
1-3 |
1-3 |
1-3 |
Uniaxial Plastic Geogrid Feature
In this process, the polymer becomes a oriented linear state and forms an oblong network integral structure with uniform distribution and high node strength. This structure has quite high tensile strength and tensile modulus. The tensile strength reaches 100-200Mpa, which is close to the level of low-carbon steel. It is much better than traditional or existing reinforced materials, and has a high level beyond the international level. Early (elongation in 2%-5%) tensile strength and tensile modulus. It provides the soil with an ideal interlocking system for bearing and spreading forces. The product has high tensile strength (>150Mpa), adapts to various soils, and is a widely used reinforcement material.
Plastic Uniaxial Geogrid Fuction
What is the function of the one-way geogrid? The one-way grille is commonly used in northern areas. The two-way geogrid is mainly used in areas that have different requirements for the positive and negative increase limits of the geogrid in different regions and in different seasons, climate, orientation, natural disasters, and production environment. Especially when the two-way direction is negative increase limit, the two-way grid should be used to fill these amounts to play a filling role. Definition and principle of one-way geogrid A one-way geogrid is a three-dimensional geogrid used in the contaminated area of stone and gravel waters. The one-way grille is mainly aimed at the water environment of stone and crushed stone. The product quality is advanced, the structure is simple, and the construction is convenient. The one-way grid can appear as a green product in some cases, and is often used in urban environmental landscapes where the green area is large and the negative increase limit is relatively large. At the same time, the garden three-dimensional vehicle with one-way grille can also be used in special orientation (head or tail). Definition and principle of two-way geogrid Two-way geogrid is aimed at water pollution and overall pollution inside the stratum. The application of two-way grille is wider than one-way, and it must be adjusted according to the conditions after construction. The construction of two-way grids causes great natural and artificial pollution to the building and the surrounding water body, and the construction is cumbersome, and the flexibility of combination and design is not strong.
Uniaxial Plastic Geogrid Usage
1. Strengthen the roadbed, effectively distribute the diffusion load, improve the stability and bearing capacity of the roadbed, and extend the service life;
2. Able to withstand greater alternating loads;
3. Prevent roadbed deformation and cracking caused by loss of roadbed materials; unidirectional plastic geogrid.
4. Improve the self-supporting capacity of the filling behind the retaining wall, reduce the earth pressure of the retaining wall, save costs, extend the service life, and reduce maintenance costs;
5. The use of spray anchor concrete construction method for slope maintenance can not only save 30%-50% of the investment, but also shorten the construction period by more than twice;
6. Adding geogrids to the roadbed and surface of the highway can reduce deflection and rutting, delay the occurrence of cracks by 3-9 times, and the thickness of the structural layer can be reduced to 36%;
7. Suitable for all kinds of soil, no need to obtain materials from different places, saving time and effort;
8. The construction is simple and fast, which can greatly reduce the construction cost.
Construction method of one-way geogrid:
Excavate the foundation bed, set up a sand cushion (the height difference is not more than 10cm), roll it into a platform, and lay a grid. The longitudinal axis should be consistent with the main force direction, and the longitudinal overlap should be 15-20cm, the lateral 10cm, and the overlap Bind it with plastic tape, and fix it on the ground with U-shaped nails every 1.5-2m on the laid grid. The laid geogrid should be backfilled with earth material in time. The number of layers of the laid geogrid depends on the technical requirements. The construction process requirements of the geogrid: the paving surface of the geogrid should be relatively flat. After the paving layer has passed the experience, in order to prevent the longitudinal skew phenomenon, first draw a white line or hanging line on the paving layer according to the width. You can start paving, and then use iron nails to fix the ends of the grille (8 nails per meter width, fixed at a uniform distance). After fixing the ends of the grille, use a paving machine to slowly pull the grille forward, and manually tighten and straighten it every 10 meters long until one roll of grille is finished, and then another roll is laid. The operation is the same as before. After laying a roll, use a 6T-10T roller from the starting point to roll it in the forward direction. (If paving on the middle layer and leveling layer, it is better to use a steel roller roller; if the grating is directly laid on the concrete pavement, it is better to use a rubber roller roller.) For the section length, after the section length of the grid should be paved, check the paving quality as a whole, and then pave the next section. When laying the next section, the grid and the grid can be overlapped with a length of 10-15CM, and fixed with iron nails or wooden wedges, and then continue to pave the second section in the forward direction. By analogy, the operation requirements are the same as before.
Company introduction:
Hengquan company was established in 2013, has become one of the leading and professional manufacture of many kinds of Geosynthetics and wire mesh.
(such as:Geocell,Geotextile,Geomembrane, Geogrid,, ,Gabion box,Welded wire mesh panel) in the world market. We got quality control to make sure every product be in good quality, which can make sure that any bad products will not sent to clients.
We got customers from American, Canada, Russia,Gemany and over 20 countries and enjoy good reputation.
Welcome to contact.
Leo
Manager of Hengquan company
Phone/Whatsapp/Wechat: +8615030705799
