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DATA SHEET 3150-312

Specification

PVC WATERSTOPS

DESCRIPTION
Premium PVC Waterstops are manufactured from premium quality thermoplastic resins, which are plasticized and stabilized for controlled properties. For consistent quality, no reclaimed PVC is used. They are extruded in a variety of thicknesses, widths and centre bulb sizes. The most used sizes are illustrated in this data sheet but a variety of other sizes are available.

"T", "X" and "L" spliced sections are available on special order.

USE
Prevention of the passage of water through joints of liquid-containing or liquid-excluding structures, foundation walls, tunnels and similar concrete construction. Other applications include swimming pools, reservoirs, water and sewage treatment plants, retaining walls, culverts, bridge abutments and dams.

FEATURES

PVC Compound, has unsurpassed qualities of ease of handling and low temperature flexibility. Centre bulb accommodates limited shear movement. Multi-rib web design anchors the waterstop securely in the concrete. Supplied in coils, which are easily handled, flexible and may be bent around corners or formed in curves as required. Can be job-site spliced with specifically designed, thermostatically controlled, electric splicing irons. Not susceptible to oxidation or fatigue deterioration, as with metal or rubber. Resists attack by acids (except organic acids), alkalis, chlorinated water, seawater and natural salts - even diesel oil. Does not set up electrolysis with structural or reinforcing steel and will not discolour concrete.

CAUTION
Proper installation is essential. Voids, honeycombing, segregation of the mix, or any condition which leads to greater concrete permeability, are to be avoided.

APPLICATION INSTRUCTIONS
Secure the waterstop in place, using split forms or other suitable method, to ensure correct positioning and proper embedment of the waterstop in the concrete. Position the bulb exactly in the middle of the joint.

Vibrate the concrete around the waterstop thoroughly, to eliminate voids or honeycombs and to ensure effective bonding of the concrete to the waterstop ribs. Before second pour, place copper-clad steel rings as far as possible from the outer edge of the waterstop. Slip #16 gauge tie wires through the rings and secure to the forms or to the reinforcing steel. Provide sufficient number of ties to maintain the waterstop in position during the second pour. Splicing can be accomplished by softening the ends of PVC Waterstop to melting point 200°C ± 10°C (392°F ± 50°F) over an indirect heat source. Thermostatically controlled, Teflon-covered welding irons are recommended (available from MEADOWS). When the plastic begins to melt, place the ends together in direct alignment and hold firmly in position until the plastic cools (about 20 seconds).

PERFORMANCE CHARACTERISTICS

PHYSICAL PROPERTIES	TEST METHOD	Premium Grade
Tensile Strength	ASTM D 638 Type IV	13 MPa
Ultimate Elongation	ASTM D 638 Type IV	340%
Low Temp. Brittleness	ASTM D 746	-38°C (-37°F)
Tear Resistance	ASTM D 624 Die "B"	50 kn/m
Modulus of Elasticity	ASTM D 638 Type IV	10 MPa
Effects of Alkali Change in mass	ASTM D 471 CGSB 41-GP-34M	4.5%
Ultimate Elongation	ASTM D 471 CGSB 41-GP-35M	280%

SELECTION
Select width which will withstand the hydrostatic pressures on the joint (see table). Consider the dimensions of the joints at the time of pouring and the expected movement between the segments. Types less than 152.4 mm (6") wide are not recommended for joints more than 12.7 mm (1/2") wide at time of pouring. PVC Waterstop must be correctly positioned for maximum efficiency. Select a type that is thick enough to remain positioned during the concrete pours. Thinner types can be wired to surrounding reinforcement. Heavier sections are recommended for larger structures that are not reinforced.

SPECIFICATION CLAUSE
Broadscope Section 03100, Narrowscope 03150.
Waterstops - W. R. MEADOWS PVC Waterstop; TYPE ...... (specify)

Standard Profiles

Premium Grade conforming to CGSB 41 GP 35M Types II and III Ontario Hydro M-264-75 MTO Accepted, DSM 9.40.90

	Width		Recommended Max. Head of Water		Approx. Wt. per 100 feet	Lengths	Stand.
Type No. 4316 6316 6380 9316 9380 9380-G	mm 102 152 152 229 229 229	(in.) 4 6 6 9 9 9	m 19.8 30.5 38.1 45.7 45.7 45.7	(ft.) 65 100 125 150 150 150	(lbs.) 40 73 127 119 162 228	m 15.24 15.24 15.24 15.24 15.24 15.24	(ft.) 50 50 50 50 50 50

No. Width Thickness 4316 102 mm (4") 4.8 mm (3/16") 6316 152 mm (6") 4.8 mm (3/16") 6380 152 mm (6") 9.5 mm (3/8") 9316 229 mm (9") 4.8 mm (3/16") 9380 229 mm (9") 9.5 mm (3/8") 9380 G 229 mm (9") 9.5 mm (3/8")

2005-08-09