In tunnel boring (TBM) and precast concrete structures, Active Sealing Technology represents the cutting edge of technology. Unlike traditional passive rubber gaskets, which rely solely on mechanical compression, the hydrophilic swellCORD profiles absorb moisture and swell significantly in volume, completely sealing joints, gaps, irregularities, and microcracks.
Active Expanding Protection: 100% hydrophilic formulation that expands from 300% to 850% upon contact with water.
Dynamic Adjustment & Absorption of Displacements (Compensates for Joint Movement): Dynamically adapts to changing gaps, deviations, and joint offsets.
Reversible Swelling: It can undergo multiple wet/dry cycles—it contracts when it dries and expands again as soon as moisture is present.
High Resistance to Permanent Deformation: Maintains its elasticity and functionality under continuous stress.
Excellent Chemical Resistance: Resistant to chemical effects from soil and groundwater.
Composition: 100% Hydrophilic Material
Expansion Ratio: 300% – 850%
Hardness (Shore A): 25–40
Density: 1.25 g/cm³
Tensile Elongation at Break: 500%
swellCORD: Cords with diameters ranging from 4 mm to 16 mm.
swellSTRIP: Strips/profiles with a special cross-section.
Customized: Custom dimensions and design available based on project specifications.
TBM Tunnels: Integration/bonded or anchored to precast concrete segments via rubber gaskets.
Construction Joints & Infrastructure: Sealing joints in underground projects subject to high hydrostatic pressure.
| CROSS-SECTIONS |
| 4mm |
| 5mm |
| 6mm |
| 8mm |
| 10mm |
| 12mm |
| 14mm |
| 16mm |
