In recent infrastructure projects across Europe and North America, engineers face mounting challenges from environmental factors such as thermal expansion and corrosion in concrete structures. SupAnchor®, a leading innovator in geotechnical solutions, has introduced the SupFRP® GFRP Dowel Bar to address these issues effectively. This product is designed to provide reliable load transfer in construction joints, enhancing durability and reducing maintenance costs in large-scale applications like highway pavements and embankments.
The SupAnchor GFRP Dowel Bar is manufactured from premium materials, offering customizable options to meet specific project needs. Key technical specifications include high transverse shear load capacity and a coefficient of thermal expansion that closely matches concrete, allowing for seamless integration and movement accommodation. Below is a detailed table of the product's technical data:
| Model | Outside Diameter (mm) | Transverse Shear Load (kN) | Nominal Cross-Sectional Area (sq. m) | Coefficient of Thermal Expansion (x10⁻⁶/°C) | Weight (kg/m) |
|---|---|---|---|---|---|
| DB16 | 16 | 35 | 200 | 9-11 | 0.43 |
| DB20 | 20 | 55 | 310 | 9-11 | 0.67 |
| DB25 | 25 | 85 | 490 | 9-11 | 1.05 |
| DB32 | 32 | 130 | 800 | 9-11 | 1.71 |
| DB38 | 38 | 180 | 1130 | 9-11 | 2.41 |
| DB45 | 45 | 255 | 1590 | 9-11 | 3.37 |
These specifications enable the dowel bar to handle significant loads while preventing issues like rust and magnetic interference, making it ideal for applications in jointed rigid pavements and areas with electromagnetic sensitivities. For instance, the high transverse shear load ensures effective load transfer between concrete slabs, reducing the risk of cracking and extending the structure's lifespan. SupAnchor's expertise in geotechnical reinforcement systems, including self drilling anchor bolts, complements this innovation, providing comprehensive solutions for modern construction challenges.
The GFRP Dowel Bar is particularly valuable in projects involving jointed rigid pavement, construction joints, embankments, and mechanically stabilized earth (MSE) walls. Its non-conductive and non-magnetic properties make it suitable for work areas near sensitive equipment, such as in tunneling and mining operations. By offering a service life of over 100 years with no rust, this product reduces long-term maintenance costs and enhances safety, aligning with global trends towards sustainable infrastructure development. SupAnchor's hollow bar anchor technologies and drill-and-grout bolt systems are often integrated with such products to deliver robust geotechnical reinforcement.
SupAnchor's commitment to innovation is evident in their R&D efforts, which have led to ISO-certified products used in global projects. The company's collaborative approach with engineers and contractors ensures that solutions like the GFRP Dowel Bar meet specific site requirements, fostering professionalism and trust in the industry. This product not only addresses immediate engineering needs but also contributes to broader goals like reducing environmental impact through durable, low-maintenance materials. As a soil nail system manufacturer and ground anchor bolt factory, SupAnchor continues to lead in developing advanced geotechnical reinforcement systems that support critical infrastructure worldwide.
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