Hydroblock
HYDROBLOCK® PVC geomembrane — signal layer
Two-layer PVC sheet with a contrasting underside. Damage flakes the top colour away and reads dark, so punctures are found by eye.
DetailsPhotography to follow
Geoguard
T-Grip HDPE/LLDPE geomembrane
Studded sheet — protrusions along the roll key into wet concrete so membrane and structure act as one.
The same polyethylene barrier sheet, with protrusions extended at regular intervals across the roll. Cast against fresh concrete, those studs lock the membrane mechanically into the structure.
It removes the weak point of a loose liner in a concrete channel or shaft: water that gets behind the sheet has nowhere to travel.
Specification
- Material
- HDPE or LLDPE
- Surface
- Studded (T-grip protrusions)
- Bond
- Mechanically cast into concrete
- Colour
- Black; custom on request
Typical applications
- Sewage collectors and manholes
- Concrete pipes and culverts
- Irrigation canals
- Basement waterproofing
Need this priced against a drawing?
Send the detail or the specification clause. We quote the exact article, quantity and lead time — and flag it if something else in the range fits the build-up better.
Also in geomembranes
Photography to follow
Geoguard
GEOGUARD® smooth polyethylene geomembrane
HDPE and LLDPE barrier sheet, extruded and calendered. Stops liquid and gas movement in containment work.
DetailsPhotography to follow
Geoguard
HDPE geomembrane — textured & signal (HD-ST)
Black homogeneous HDPE, flat or textured, optionally with a light signal layer so damage reads as a contrast.
Details