Sika V20 ECO VN waterstop

Sika V20 ECO VN waterstop is made from heat-resistant, elastic PVC. The product is designed to block water seepage through joints in concrete structures. It is one of the types of waterstops with reasonable price.

ADVANTAGES OF SIKA WATERBAR V20 ECO

• Sealing is effective as soon as the concrete begins to harden.
• The surface has many ribs that help prevent water penetration.
• Can be easily welded on site (welding knife available).
• Good chemical resistance.
• There are many different cross-section shapes for different applications.

SIKA WATERBAR V20 ECO APPLICATION

Sika Waterbar V20 ECO VN is used to fill joints in the following structures:

Water tank

Wastewater treatment plant

Pool

Basement

Retaining wall

Elevator pit

Tunnel, sewer

Technical pit

PRODUCT INFORMATION SIKA WATERBAR V20 ECO VN

Chemical origin: Polyvinyl Chloride (PVC)

Packing: 20m/roll (other sizes on request)

Appearance / Color: Elastic Band / Yellow

TECHNICAL SPECIFICATIONS SIKA WATERBAR V20 ECO VN

Shore A hardness: >70

Tensile strength: 12 N/mm² (± 5%)

Elongation: 300% (± 5%)

CHEMICAL RESISTANCE : Permanent: sea water, wastewater

Temporary: inorganic alkalis, inorganic acids, inorganic oils and fuels

INSTRUCTIONS FOR APPLYING SIKA WATERBAR V20 ECO

Positioning into formwork:

– The product is placed in the formwork allowing half to be inside the concrete surface and half to protrude outside.

– The product is used for construction joints where there are nominal displacements such as basements or retaining walls…

Attached to the reinforcement:

– On Sika Waterbar V20 ECO VN there are small holes, these holes will be used to fix Sika waterbar V20 ECO VN to the steel reinforcement with metal wires and thus ensure that the waterstop does not shift during the concrete pouring process.

Initial concrete pouring:

– Sika Waterbar V20 ECO VN only performs its function when both sides are deeply embedded in the concrete.

– Must be compacted carefully to avoid honeycombing of concrete.

– Concrete must not be too plastic or too hard and aggregate must have appropriate grain size composition.

– Be careful when pouring concrete near Sika V20 ECO VN otherwise the pressure of the concrete may bend it.

– To avoid this situation, the concrete pressure on both sides of the Waterstop must be equal.

Phase two concrete pouring:

– Be careful when removing formwork around Sika V20 ECO VN

– The end of the product must be carefully checked for honeycombing at the stop, and repaired if necessary.

– Must clean the concrete spilled on the Waterstop from the previous concrete pour.

– The next construction process is carried out as in the first stage.

Welding:

– Use an electric welding knife to carry out welding at the construction site, heating both ends of the weld at the same time with both sides of the welding knife until the PVC becomes evenly melted.

– Take out the soldering iron and immediately join the two ends together.

– Hold the joint tightly until it cools and solidifies.

– Check for loose or imperfect joints

– Re-weld if necessary, damage may occur if the cut is not flat, not hot enough, dusty…