Description
Technical Parameters
Railway Rail Shoulders: Product Technical Specifications
| Parameter | Concrete Sleeper Shoulder | Steel Sleeper Shoulder | Composite Shoulder |
|---|---|---|---|
| Material | C60 Concrete (EN 13230) | Q355B Steel (GB/T 1591) | GFRP/Polyurethane Composite |
| Dimensions (L×W×H) | 220×110×75 mm | 200×100×15 mm | 210×105×70 mm |
| Weight | 3.8 kg ± 0.2 kg | 1.5 kg ± 0.1 kg | 1.2 kg ± 0.1 kg |
| Surface Finish | Smooth formwork finish | Hot-dip galvanized (≥80μm) | UV-resistant coating |
| Compressive Strength | ≥60 MPa | N/A | ≥45 MPa |
| Corrosion Resistance | N/A | Salt spray > 1000 h | Chemical resistant (acid/alkali) |
| Insulation Resistance | N/A | N/A | > 10⁹ Ω·cm |
| Operating Temperature | -40°C to +70°C | -50°C to +120°C | -60°C to +150°C |
| Fire Rating | A1 (Non-combustible) | A1 (Non-combustible) | B1 (Flame retardant) |
| Standard Compliance | EN 13230, AREMA 3-5-3 | UIC 864, ASTM A123 | EN 45545-2, NFPA 130 |
Railway Rail Shoulders: Engineering Application & Installation Standards
| Application Scenario | Installation Method | Tolerance & Alignment | Quality Control Check |
|---|---|---|---|
| Pre-stressed Concrete Sleeper | Epoxy adhesive + vertical press | ±1.5 mm horizontal position | Adhesive coverage >90% visual |
| Steel Trough Sleeper | M16 bolt torque 100-120 N·m | Shoulder perpendicularity ≤1° | Bolt preload force verification |
| Ballastless Track (Slab) | Cast-in-place with rebar anchor | Level tolerance ±0.5 mm | Concrete cover depth measurement |
| Tunnel Track (Enhanced) | Grouted anchor system | No longitudinal movement under 20 kN | Pull-out test ≥25 kN per shoulder |
| High-speed Turnout Area | Shoulder paired with gauge plate | Gauge width 1435 mm ±1 mm | Laser track gauge cart verification |
| Curved Track (R < 600 m) | Shoulder with lateral restraint wing | Wing to rail gap 3-5 mm | Dynamic gauge widening monitoring |
| Maintenance Replacement | Remove old adhesive, surface grind | New shoulder height ±0.3 mm | Adjacent shoulder height differential |
| Inspection Frequency | Visual check every 6 months | Shoulder crack width ≤0.2 mm | Crack mapping with digital caliper |
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