AKVASTOP DV waterstop — internal waterstop for expansion joints
Internal expansion-joint waterstop in EPDM rubber or PVC-P for joints in foundations, tunnels and tanks; withstands water pressure up to 0.85 MPa.
The PNB profile is made of natural sodium bentonite and butyl rubber, with a polymer content of at least 50 %. On contact with water the strip expands in volume by up to 200 %, and its resistance to hydrostatic pressure depends on the section: from 10 atm for 20×10 to 18 atm for 25×19 mm. It is laid in construction joints, floor-to-wall and wall-to-roof-slab junctions, joints of precast reinforced concrete and utility penetrations; the profile is not intended for expansion and shrinkage joints with movement.
| Manufacturer | AKVASTOP — OOO “Akvabarier” |
|---|---|
| Type | waterstops and swelling profiles |
| Use | foundations and basements, tunnels and metro, joints and junctions, leak repair |
| Base | rectangular-section strip of natural sodium bentonite and butyl rubber (polymer content at least 50 %) |
| Colour | green |
| Packaging | 20 m box (4 coils of 5 m) interleaved with release paper |
| Application method | installed immediately before concreting; remove the release paper; laid in the central part of the section, no closer than 70 mm to the faces; butt-jointed; fixed with metal mesh and dowels every 150–200 mm; avoid prolonged contact with rainwater before concreting |
| Application temperature | −15…+50 °C |
| Key properties | sections 20×10, 20×15, 25×15, 25×19 mm (“Industrial” type); specific gravity 1.35 g/cm3; volumetric expansion on contact with water up to 200 %; resistance to hydrostatic pressure 10 / 12 / 16 / 18 atm (for sections 20×10 / 20×15 / 25×15 / 25×19); not for expansion and shrinkage joints with movement |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
Internal expansion-joint waterstop in EPDM rubber or PVC-P for joints in foundations, tunnels and tanks; withstands water pressure up to 0.85 MPa.
External formwork-type waterstop for construction joints in concreting; permissible water pressure 0.21–0.47 MPa.
Universal U-shaped waterstop for new and existing expansion joints; the DZ-140/100 profile accommodates joint tension of up to 250 mm.
External formwork waterstop for expansion joints in foundations, basements and tunnels, rated for water pressure of 0.28–0.47 MPa.
External formwork waterstop for construction joints in waterproofing systems with PVC membranes; permissible water pressure up to 0.33 MPa.
Internal PVC-P waterstop with a swelling rubber cord for construction joints and floor-to-wall junctions; water pressure up to 0.97 MPa.