Special Gaskets

back

Hydrophilic Gaskets

FAMA offers a range of customizable hydrophilic gaskets, designed according to different functional techniques.
The hydrophilic profile must be tested with ground water.

STRIP

STRIP WITH RIBS

HYDROPHILIC CORD

click to view the graph

Swelling graph of hydrophilic material

INTRUSIVE GASKET
For abnormal GAPS recovery

Intrusive gasket

UG018F 29x14

Contact surface swelling can support abnormal GAPS

Contact surface swelling can compress gaskets after segment installation, thus reducing sliding.

FAKE GASKET FOR TRIAL RING
In place of anchored gasket

Fake gasket

UG062 29X14

fake_gaskets_for_trial_ring_UG062_29x14

The fake gasket is used in trial ring in place of anchored gasket.

ASYMMETRIC GASKET
For high compression force

Asymmetric gasket

UG077 44X20

asymmetric_gasket_UG077_44x20

The asymmetric solution is applied to a large gasket that could cause breakage because of the high compressive force.

The particular distance of the anchor foot of the eccentric gasket overcomes this risk of breakage.

CHEMICAL PROTECTION SYSTEM
For the integration of protective film at the tunnel intrados

Sealing of joints with PEHD film is normally done by overlapping PEHD heat-sealed strips in place.

The solution devised by FAMA makes it possible to eliminate this time-consuming and expensive operation by adopting a special gasket with multiple integrated solutions:

  • The gasket is anchored to the concrete.
  • The gasket integrates the PVC film to itself, ensuring its sealing.
  • The gasket can integrate a hydrophilic cord, thus creating the second sealing barrier.

GASKET PROTECTION SHIELD
For highly aggressive environments

UG043 32X14

The Gasket Protection Shield consists of two coupled profiles suitable for anchoring to concrete.

  • The outer profile is manufactured from materials suitable for withstanding extreme situations.
  • The inner profile is produced from materials with high conservation of elastic energy.

CROSS GASKET
With a double barrier

For projects where a double gasket is required at both the extrados and intrados, FAMA uses the anchored cross-gasket that prevents the propagation of any water infiltration inside the lining due to the channeling of the double gasket.