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Overview

LEVAJOINT Waterstop is a specially formulated polyvinyl chloride ( PVC) compound ‎manufactured from virgin materials that fulfill all properties desirable for a waterstop.‎

The material is tough, flexible, resilient, chemically inert, is not affected by weathering, low ‎temperatures, or constant immersion in water. It will withstand rough treatment during ‎installation, yet, is relatively easy to install and splice.‎

LEVAJOINT Waterstop is unaffected by concrete additives and most water solutions of ‎organic chemicals.‎

LEVAJOINT Waterstop is available in different shapes, types and (TPV / TPE-R) for Oil Industry.

Features



Flexible
Flexible Waterstop


Chemical Inert
Chemical Inert Material


Weather Proof
Not affected by weather


Water Immersion Proof
Not affected by water immersion


Robust
Tough material
Specifications

 

  LEVAJOINT PVC WATERSTOP SPECIFICATIONS

PROPERTY STANDARDS & NORMS NOMINAL VALUES
SPECIFIC GRAVITY ISO 2781 1.37
WATER ABSORPTION ASTM D570 0.13%
TENSILE STRENGTH                         LONGITUDINAL ASTM D638 13.3 MPa
ELONGATION AT BREAK ASTM D412-87 METHOD A 445%
HARDNESS SHORE A/10   72 ± 3
STIFFNESS-IN FLEXTURE   920 PSI
TEAR RESISTANCE  ASTM 1004 333N
MODULUS OF ELASTICITY   800PSI
LOW TEMPERATURE BRITTLENESS ASTM D746-79 AT - 26ºC PASSED
COLD BEND ¼" MANDREL AT - 10ºC‎   PASSED
LOW TEMPERATURE FLEXIBILITY AT - 20ºC‎   PASSED
LOW TEMPERATURE IMPACT AT - 20ºC‎    
24 HOURS   0.082%
48 HOURS   0.320%

 


  LEVAJOINT TPV / TPE-R WATERSTOP SPECIFICATIONS

PROPERTY STANDARDS & NORMS NOMINAL VALUES
HARDNESS SHORE A (±3) ASTM D-2240‎ 85
TENSILE STRENGTH                                                      ASTM D-412 2100 psi (14.47 MPa)
ULTIMATE ELONGATION  ASTM D-638 480%
100% MODULUS ASTM D-638 1050 psi (7.24 MPa)
BRITTLE POINT ASTM D-746 ‎-69°F (-56°C)‎
STRESS @ 100% ELONGATION ASTM D-638 1000
OZONE RESISTANCE  ASTM D-1171 PASSED 460 pphm
PEEL STRENGTH @ 23°C ASTM D-816 MOD. 22 pli

 

 


FAQ

What are Levajoint PVC waterstops made of?

They are made of flexible PVC or TPV / TPE-R.



Why Levajoint PVC waterstops are used?

Concrete, like all materials, expands and contracts when the temperature fluctuates. To accommodate these changes, expansion joints are installed at regular intervals throughout the slabs and walls. PVC waterstops are recommended to stop leakage positively through construction and expansion joints in concrete structures.

 



Where Levajoint PVC waterstops are used?

They are required whenever concreting is to be made in two phases (between slab and slab or slab and wall or wall and wall). Nearly all large-scale concrete structures: reservoirs, locks, dams, aqueducts, bridges and deck abutments, culverts, tunnels, etc.—usually have waterstops installed during construction. Residential jobs also use waterstops, but usually, only at the cold joint between the footer and the foundation. They are used in environments with heavily polluted water or corrosive chemicals such as wastewater treatment facilities, or the primary and secondary containment structures surrounding refineries, sludge ponds, tank farms, etc.

 



How to install Levajoint PVC Waterstop?

PVC Waterstops are installed within the reinforcing steel before concreting.

They are tied to the reinforcement steel bars with steel wires through the holes in the waterstop.

Installing the waterstops must be done before the concrete is placed. One side of the waterstop is embedded in the concrete during the first pour, with the other side temporarily exposed. When the next pour is made, the other half of the waterstop is encased in concrete. The centerline of the waterstop should be aligned with the center of the joint.



How do we keep vertical waterstop in place?

It is fastened to the vertical rebar or form ties to keep it in place. During the pour, workers must ensure good consolidation around the waterstop, as voids next to the waterstop can significantly compromise its water stopping ability.



How do we keep horizontal waterstop in place?‎

Horizontally placed waterstops in slabs require particular attention, as it s difficult to get concrete to flow into the gap between the bottom of the stop and the top of the forming bed. Most waterstops are ribbed, or have a thicker -dumbbell- of material on the ends to keep them in place and ensure maximum water-sealing performance. Profiles with a -bubble- in the middle of the strip are best for joints with lots of movement.



Availability in the market?

Levajoint Waterstops are available in different sizes and types.



How to select a Waterstop?

Several factors must be considered when selecting a waterstop: joint type and joint movement, hydrostatic pressure and chemical exposure.



Levajoint Types?

Plain Web & centre bulb.

Exterior & Interior.



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