BIGUMA®-B 700
Bituminous joint compound for undergrouting rails
Want to order or have questions?
Get in touch – we'll help you choose the right products, advise on usage and prepare a quote.
Description
BIGUMA®- B 700 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 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
- Rapid hardening of the compound means very short construction times and results in only short interruptions to tram services
Available packaging
Metal containers: 18 kg
Downloads
Technical datasheet
Download PDF file
Technical info
Application instructions
a) Melting
Heat carefully in a boiler with mechanical agitation, indirect heating and a thermometer. Boilers without mechanical agitation are unsuitable—demixing could occur. Regulate temperature thermostatically. Avoid overheating.
b) Undersealing of the rail base
BIGUMA®-B 700 must be at the specified application temperature; if too low, fluidity suffers and voids under the rail base may form. Work quickly, e.g. with an asphalt bucket. Before undersealing, confine the void laterally with formwork (e.g. mortar).
Undersealing should extend about 1.5–2.5 cm beyond each side of the rail base. Fill in two steps: about two-thirds of the height in the first pass, the remainder as a finish after the first layer has cooled to hand-hot. Finish up to the upper edge of the rail base; the rail may briefly see up to 220 °C during finishing—compensate deformation with weight (e.g. concrete slab or rail). Two-layer work limits heat exposure.
BIGUMA®-B 700 is not pumpable. Material can also be collected hot liquid ex works.
Undersealing should extend about 1.5–2.5 cm beyond each side of the rail base. Fill in two steps: about two-thirds of the height in the first pass, the remainder as a finish after the first layer has cooled to hand-hot. Finish up to the upper edge of the rail base; the rail may briefly see up to 220 °C during finishing—compensate deformation with weight (e.g. concrete slab or rail). Two-layer work limits heat exposure.
BIGUMA®-B 700 is not pumpable. Material can also be collected hot liquid ex works.
Weather conditions
Underseal only in dry weather with surface temperature at least +5 °C.
Material consumption
BIGUMA®-B 700: approx. 17 kg/m rail length (built-in height approx. 3 cm; rail base width approx. 28 cm).
Cleaning agents
Equipment: petrol or common solvents
At skin contact: hand cleansing paste
At skin contact: hand cleansing paste
Storage
Store cold and dry; storable for at least 24 months.
Authoritative regulations
- VDV guidance: Undersealing of rails
Technical data
| Application temperature | approx. 220 °C |
| Density | approx. 2.0 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.