In modern construction technologies, increasing attention is given to materials that combine high strength, corrosion resistance, and light weight.
We have prepared a detailed comparison table that contrasts the properties of traditional steel reinforcement with those of fiberglass reinforcement produced using Composite Group Chelyabinsk technology.
The table includes both international standards and Russian requirements — allowing you to objectively evaluate the advantages of composite solutions.
Comparison
| Parameters | Steel rebar (A400 type) | Pultrusion requirements (acc. to National Standard of India, National Standard of USA) | Requirements of the National Standard of the Russian Federation | Specification of Composite Group Chelyabinsk |
|---|---|---|---|---|
| Dia, mm | Breaking load* | Breaking load* | Breaking load* | Breaking load* |
| 4.0 | 390 MPa | Not less than 873 | Not less than 1000 MPa | 1000-1400 MPa |
| 6.0 | 390 MPa | Not less than 813 | Not less than 1000 MPa | 1000-1400 MPa |
| 8.0 | 390 MPa | Not less than 795 | Not less than 1000 MPa | 1000-1400 MPa |
| 10.0 | 390 MPa | Not less than 764 | Not less than 1000 MPa | 1000-1400 MPa |
| 12.0 | 390 MPa | Not less than 708 | Not less than 1000 MPa | 1000-1400 MPa |
| 16.0 | 390 MPa | Not less than 646 | Not less than 1000 MPa | 1000-1400 MPa |
| 20.0 | 390 MPa | Not less than 604 | Not less than 1000 MPa | 1000-1400 MPa |
| 25.0 | 390 MPa | Not less than 550 | Not less than 1000 MPa | 1000-1400 MPa |
| 32.0 | 390 MPa | Not less than 552 | Not less than 1000 MPa | 1000-1400 MPa |
| Modulus of elasticity | 200000 MPa | Not less than 45 000 MPa | Not less than 50 000 MPa | From 50000 to 55000 MPa |
| Transverse shear strength | Is not specified | Not less than 130 MPa | Not less than 150 MPa | From 150 to 224 MPa |
| Ultimate strength at compression | A500 – Not less than 500 MPa | Is not specified by the Standard | Not less than 300 MPa | An average of 711 MPa |
| Guaranteed bond strength | Is not specified | Not less than 7.6 МPa | Not less than 12 MPa | From 24 to 27 MPa |
| Residue after the alkalinesolution | Doesn't change | Not less than 80% | Not less than 80% | 80-85% |
| Bond strength after alkaline | Is not specified | Not less than 6.1 MPa | Not less than 10 MPa | 10.9 МPa |
| Glass fiber content (mass fraction) (for composites)/ Continuous reinforcing filler content (for steel) | 100 % | Not less than 75% | Not less than 80% | 82-86% |
| Density | 7,8 g/cm3 | Is not specified | Is not specified | 1,6-2,2 g/cm3 |
| Mass of 1 liner meter | 0.617 kg/m (10 mm) | 0.15 kg/m (10 mm) | 0.161 kg/m (10 mm) | CG technology provides the required weight in accordance with any standard |
| Nominal cross-sectional area, mm2 | 0,785 (10 mm) | 73 (10 mm) | 78,5 (10 mm) | CG technology provides required nominal cross-sectional area in accordance with any standard |
| Electrical conductivity | Conductor | Dielectric | ||
| Magnetic characteristic | Magnetized | Is not magnetized | ||
| Thermal conductivity | 56 W/(m°C) | Is not specified | Less than 0,46 W/(m°C) | |
| Fire resistance | Up to 600 | Is not specified | Up to 300 | |
| Moisture absorption | Doesn't have | not more than 0,25% (24 hours) | Not more than 0,15% (24 hours) | Not more than 0,15% |
| Reliability indicators | Susceptible to corrosion, chemically unstable |
High corrosion and chemical resistance |
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For more details, please refer to our sales office
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Calculating savings for replacing steel rebar by GFRP rebar
Steel rebar 10mm in diameter is used for the comparison. Steel and FRP rebar is applied longitudinally and in transverse rods with a cell of 150x150 mm, 1 sq.m is taken for the reference.
| Type of reinforcement | Reinforced area, sq.m | Weight of 1m of rebar, kg/m | Number of meters of rebar in 1 sq.m of reinforced area | Total weight of used rebar, kg | Price of 1 m of rebar, rub/m | Total price of used material, rub/sq.m |
|---|---|---|---|---|---|---|
| Steel rebar 10 mm in dia | 1 | 0.617 | 13.33 | 8.220 | 43.19 | 575.72 |
| GFRP rebar 10mm in dia | 1 | 0.122 | 13.33 | 1.630 | 18.73 | 249.67 |
| GFRP rebar 8 mm in dia | 1 | 0.080 | 13.33 | 1.070 | 12.53 | 167.02 |
* The use of GFRP mesh of a smaller diameter is justified by tensile strength rate of GFRP rebar. Its ultimate tensile strength is 1100 MPa, whereas tensile strength of steel rebar is only 390 MPa.
56.63%
70.98%
Calculating saving for steel mesh replaced by GFRP mesh
Steel mesh with rods 4mm and 5mm in dia and a cell of 50x50mm are taken for the comparison. 1 m3 is taken for the reference.
| Masonry mesh 1 m3 is taken for the reference, bricks of 250*120*88mm with reinforcement every 3 rows | Area of reinforcement, sq.m in 1 m3 | Weight of mesh, kg/sq.m | Total weight of reinforcement in 1 m3, kg/m3 | Cost of 1 sq.m of mesh, rub/sq.m | Cost of mesh in 1 m3, rub/m3 |
|---|---|---|---|---|---|
| Steel rebar 5mm with a cell of 50x50mm | 3.40 | 5.650 | 19.210 | 275.00 | 935.00 |
| GFRP mesh 3mm with a cell of 50x50mm | 3.40 | 0.546 | 1.860 | 181.80 | 618.12 |
| Steel mesh 4 mm with a cell of 50x50mm | 3.40 | 3.680 | 12.510 | 228.00 | 775.20 |
| GFRP mesh 2.5mm with a cell of 50x50mm | 3.40 | 0.293 | 0.996 | 99.90 | 339.66 |
* The use of GFRP mesh of a smaller diameter is justified by tensile strength rate of GFRP rebar. Its ultimate tensile strength is 1100 MPa, whereas tensile strength of steel rebar is only 390 MPa.
33.89%
56.18%
Test Reports
See also:
Manufacturing lines
- CG-4 Manufacturing line for the production of fiber-reinforced polymer rebar
- CG-1 Manufacturing line for the production of fiber-reinforced polymer rebar
- СG-8 Bent Element Production Line
- Manufacturing line for the fiber-reinforced polymer rebar grid
- CG-11 Manufacturing line for the production of fiber-reinforced polymer anchors