Reinforced concrete sleeper type BF 70
Reinforced concrete sleeper type BF 70
Description
Designed and manufactured in accordance with European standard EN 13230 - 1.2 using a quality management system in accordance with the international standard ISO 9001, which ensures the highest quality of sleepers and their compliance with similar products from leading world manufacturers.
Used on railways of any class, including high-speed (160-200 km/h) and high-speed sections (more than 200 km/h) and lines with increased axle loads (30 t/axle);
Stacked and operated on the road with fewer sleepers per kilometer
BF70 sleepers can be used with the most common types of rails, for example, P65 and P75 (CIS countries) and UIC 60 (European countries) or any other with a sole width of 150 mm.
Rail gauge for BF70 sleepers - 1520 mm.
At the request of the customer, the rail gauge can be changed upwards (for small radius curves) or downwards, for example 1435 mm (standard gauge in China, Europe, Iran, and also in Afghanistan, where both gauge standards are currently used) .
Price . For 1pc 1 350 000 sum including VAT 15>#/span###
General characteristics a
|
Parameters of reinforced concrete sleeper type BF 70
|
value, tolerances |
| one. Length of reinforced concrete sleeper, mm | 2700 ±10 |
| 2. Design compressive strength of concrete at the age of 28 days (concrete class not lower than B40), not less, MPa |
51 |
| 3. Transfer strength of concrete, not lower, MPa | 40 |
| 4. Release strength of concrete, equal to the transfer strength, not lower, MPa | 40 |
| 5. Strength class of prestressed wire Вр with a diameter of 5 mm , N / mm 2
| 1400 |
| 11. Bending moment in kNm according to the condition: - crack resistance of sleeper concrete in the stretched zone in the middle of the under- rail platform M dr , not less than - crack resistance of concrete in the stretched zone in the middle of the sleeper M dc , not less than |
16.0
- 10.5 |
| 13. Reinforced concrete sleeper support area, not less than, m ² | 0.7 |
| 14. The minimum protective layer of concrete for prestressed reinforcement is , mm : - from the bottom surface - from surfaces other than the ends of the sleepers |
thirty twenty |
| 26. Fractions of crushed stone for the preparation of concrete mix, mm . | 5 - 20 |
| 27. Number of freeze-thaw cycles (concrete grade for frost resistance F 200), not less than | 200 |
| 28. Sleeper weight, kg | 330±17 |
| 29. Type of intermediate rail fastening of reinforced concrete sleeper type BF 70/ BF 70 S | Pandrol " Fastclip - FC "
|
Peculiarities
High-precision dosing of concrete components guarantees the production of high-quality products with a trouble-free period of up to 50 years. Applicable fasteners type PANDROL FASTCLIP - FC requires minimal operational effort, allows you to implement the concept of "set it and forget it." The absence of bolted joints in the fasteners allows the sleepers to be successfully used in dusty climates, deserts and saline soils.
C left
Reinforced concrete sleepers type BF -70 are made from high-quality cement, certified inert materials, wire with a strength class of 1400 with the addition of modern superplasticizers .
Timely multi-stage quality control guarantees the impeccable characteristics of each unit of production.
No reviews found