АРМАТУРА ОТ ФИБРОСТЪКЛО (GFRP)
ОБЛАСТИ НА ПРИЛОЖЕНИЕ
Introducing GFRP rebar
GFRP, or Glass Fiber Reinforced Polymer, is a composite material that has the potential to be transformative in various constructive industries. GFRP Rebar is an economical, safe, and long-term sustainable solution, offering both initial and long-term cost savings. Fiberglass rebar has enjoyed a rise in popularity thanks to the many key advantages it offers over its steel rebar. Choosing FRP rebar is a commitment to quality, innovation, and an investment in the safety of future objects.
Industrial construction, special purpose objects
Елементи на железопътни траверси за високоскоростни влакове и подземни железници.
Residential and civil construction
Road construction
Construction and strengthening of roads, bridge building & reconstruction
Marine and harbor facilities, shoreline reinforcement
Reinforcement of concrete structures and mixed reinforced concrete structures.
Construction of agricultural structures
Benefits of composite rebar
- Excellent corrosion resistance. GFRP rebar effectively resists corrosion and so can last much longer than standard rebar. Composite rebar minimizes maintenance needs.
- Highly Chemical Resistant. GFRP rebar resistant to chemical acids, salt ions, and the inherent alkaline bases of concrete that cause premature deterioration.
- Lightweight. FRP rebar is 9 times lighter than steel, making it easier to transport and install.
- High Strength. Despite its lightweight properties, GFRP rebar offers impressive strength-to-weight load-bearing performance.
GFRP Rebar vs. Steel Rebar
| Characteristics | GFRP rebar | Steel rebar |
|---|---|---|
| Corrosion resistance to aggressive environments | Non-corrosive | Corrosive |
| Corrosion resistance | High Non-conductive | Low |
| Electric conductivity | Non-conductive | Conductive |
| Thermal conductivity | Low | High |
| Strength at stretching, MPa | 1300 | 390 |
| Compressive Strength, MPa | 550 | 400 |
| Transverse Shear Strength, Mpa | 220 | 300 |
| Bond strength to concrete, Mpa | >20 | >12 |
| Ultimate strain, % | 1.5 - 2% | 15% |
| Modulus of elasticity, Gpa | 65 | 160-200 |
| Density, kg/m3 | 2100 | 7800 |
| Working temperature range, ºС | –70…+160 | –70…+50 |
| Magnetic properties | Diamagnet | Conductor |
| Издръжливост | Not less than 80 years | According to building codes |
Advantages of using GFRP rebar
- An economically viable choice for the construction industry.
- The lightness of fiberglass rebar helps contractors to deliver projects at a fast pace.
GFRP-reinforced structures do not require maintenance or any major rehabilitation activity.
GFRP rebar represents a significant advancement in construction materials, combining high strength, flexibility, and resistance to environmental factors. Its use in various construction projects not only improves structural integrity but also creates new opportunities for innovative design and more efficient construction practices.