BIGUMA®-B 700 L
Bituminous, elastic joint compound for undergrouting rails
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Description
BIGUMA®- B 700 L is a bituminous compound for the undergrouting of rails and is used for balancing unevenness between the substrate and rail base in tram rails. BIGUMA®- B 700 L guarantees seamless load transfer. The rapid hardening of the compound means very short construction times and results in only short interruptions to road operation.
Advantages
- Guarantees seamless load transfer
- Withstands high surface pressure and absorbs or isolates vibrations resulting in a noise reduction
- Rapid hardening of the compound means very short construction times and results in only short interruptions to tram services
- High electrical resistance and contributes to the prevention of stray current corrosion
- Complies with the requirements of Notification 6201 of the Association of German Transport Undertakings (VDV), Undersealing of rails on bituminous undergrouting
Available packaging
Carton: 15 kg
Downloads
Technical datasheet
Download PDF file
Technical info
Application instructions
a) Melting
Use a boiler with mechanical agitation, indirect heating and thermometer—units without agitation are unsuitable (demixing). Thermostatic control. Avoid overheating.
b) Undersealing of the rail base
Material must be at specified temperature; if too low, flow suffers and voids may form. Work quickly (e.g. asphalt bucket). Confine void laterally with formwork. Undersealing ~1.5–2.5 cm wider than rail base each side. Two steps: two-thirds height, then finish after first layer is hand-hot up to rail base top; rail may briefly see up to 220 °C—compensate with weight. Not pumpable; hot liquid ex works possible.
Weather conditions
Not in rain; surface temperature at least +5 °C.
Material consumption
Approx. 14 kg/m rail length (built-in height ~3 cm; rail base width ~28 cm).
Cleaning agents
Equipment: BIGUMA®-SWS, petrol or common solvents
At skin contact: hand cleansing paste
At skin contact: hand cleansing paste
Storage
Cold and dry; at least 24 months.
Authoritative regulations
- VDV note: Undersealing of rails
- FGSV 940
- VDE 0100-610: resistance > 1×10⁵ Ω
Technical data
| Application temperature | approx. 220 °C |
| Density | approx. 1.5 g/cm³ |
Want to order or have questions?
Get in touch – we'll help you choose the right products, advise on usage and prepare a quote.