**Introduction to Convex-Point Steel-Plastic Grid**
The convex-point steel-plastic grid is an advanced version of the traditional steel-plastic geogrid. It addresses common issues such as weak bonding at the joints, easy cracking during construction, and reduced effectiveness in preventing lateral displacement. This improved product enhances the tensile strength and durability of the welded joints, with a peeling force ranging between 500 and 600 N, significantly improving the performance of conventional geogrids. Due to the raised (convex) shape of the welding points, it is called a "convex-point" geogrid, also known as a joint-reinforced steel-plastic grid.
**Product Description**
The convex-point steel-plastic grid, also referred to as a lacing strip grid, is made by wrapping high-strength strips with high-density polyethylene (HDPE). These strips are ultrasonically welded and can be customized according to the tension requirements of different engineering projects.
a. During the production process, the plastic surface is extruded and rolled into a textured pattern with concave and convex features. This not only increases the strength of the welding points but also improves the friction coefficient of the rib surfaces. As a result, the composite steel-plastic geogrid effectively resists horizontal shear forces, enhances soil stability, and supports soft foundations, meeting long-term construction standards.
b. The convex-point steel-plastic grid comes in one-way or two-way configurations depending on the direction of tension. The tensile yield force per square meter ranges from 30 to 200 kN, and the specifications can be tailored to meet specific project needs.
**Key Features**
a. Low elongation and minimal creep, ensuring long-term structural stability.
b. Highly resistant to corrosion and aging, thanks to the addition of various stabilizers. It performs well in harsh environments, including acidic, alkaline, and saline conditions, offering a service life of over 100 years.
c. Easy to install, fast to lay, and cost-effective. The geogrid is simple to position, overlap, and fix, reducing construction time by up to 50% and lowering overall project costs.
d. High tensile strength, suitable for various soil types, ideal for highways, railways, and high retaining walls. It effectively increases the bearing area, improves interlocking, and prevents lateral movement of the roadbed, enhancing overall durability.
e. Features include high strength, high load capacity, corrosion resistance, aging resistance, large friction coefficient, uniform hole spacing, ease of installation, and long service life.
**Applications**
This type of geogrid is widely used in soft soil foundation reinforcement, retaining walls, pavement anti-cracking projects, road and railway construction, bridge approaches, wharves, dams, slag yards, and other infrastructure projects.
**Construction Method**
a. The laying surface should be flat and compacted. After acceptance of the base layer, mark the layout line using white lines or taut strings based on the required width. Then, fix the ends of the grid using U-shaped nails (4 nails per meter), evenly spaced.
b. Once the ends are fixed, use a laying machine or manually pull the grid forward. Check the alignment every 10 meters and continue until the roll is fully laid. Then proceed with the next roll.
c. For overlapping sections, align the grid so that the overlap length matches the grid clearance. Secure the overlap with tie wires and continue laying in the same direction. Repeat this process for each subsequent section, following the same procedure.
**Contact Information**
Manager Hou
Address: Taian, Shandong
Phone: [Mobile Number]
Fax: [Fax Number]
Email: [email protected]
Company Website: http://geshan123.chinawj.com.cn
News: http://news.chinawj.com.cn
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