HDPE Waterstop is a rubber ring which is compressed around the pipe circumference using stainless steel clamps, preventing infiltration and exfiltration between the HDPE Waterstop and the pipe. It is then either grouted into an existing structure, or has a new structure poured around it.
Features and Benefits
How It Works
This manhole connector meets or exceeds the material physical property requirements only:
|TYPICAL MATERIAL PHYSICAL PROPERTY TEST RESULTS for WS WATERSTOP (as in ASTM C 923 and C 1478)|
|Test||ASTM Test Method||Test Requirements||Typical Result|
ACID and 1N
|D 534, AT 22ºC FOR|
|NO WEIGHT LOSS|
NO WEIGHT LOSS
|TENSILE STRENGTH||D 412||1200 PSI, MIN.||1450 PSI|
|ELONGATION AT BREAK||D 412||350%, MIN.||540%|
|HARDNESS||D 2240 (SHORE A DUROMETER)||±5 FROM THE|
|D 573, 70± 1ºC|
FOR 7 DAYS
|DECREASE OF 15%, MAX.|
OF ORIGINAL TENSILE
OF 20%, MAX. OF ELONGATION
|COMPRESSION TEST||D 395, METHOD B, AT|
70ºC FOR 22 HRS
|DECREASE OF 25%, MAX.|
OF ORIGINAL DEFLECTIO
|WATER ABSORPTION||D 471 IMMERSE 0.75|
BY 2-IN.SPECIMEN IN
DISTILLED WATER AT
70ºC FOR 48 hrs
|INCREASE OF 10%, MAX.|
OR ORIGINAL BY WEIGHT
|OZONE RESISTANCE||D 1171||RATING 0||PASS|
|D 746||NO FRACTURE AT -40ºC||PASS|
|TEAR RESISTANCE||D 624, METHOD B||200 LBF/IN. (MIN.)||215 LBF/IN.|
A rubber waterstop shall be employed in the connection of sanitary sewer or stormwater pipes to precast concrete or poured-in-place structures. The waterstop shall be HDPE WATERSTOP as manufactured by Press-Seal Corporation, Fort Wayne, Indiana, or approved equal. The waterstop shall be the sole element relied on to assure the seal of the pipe to the structure. The waterstop shall consist of a rubber gasket and two external take-up clamps.
The rubber gasket element shall be constructed solely of synthetic or natural rubber, and shall meet or exceed the physical property requirements of ASTM C-923, ASTM C 1478, and ASTM F 2510. Key lock and water stop shall extend into the concrete a minimum of 1.5-inches (38mm) to provide an adequate anchorage and watertight seal through the cast-in-place or grouted annular space. Nonshrink grout shall be placed around the entire waterstop and maintain a minimum thickness of 2-inches (50 mm) between the rubber gasket and structure opening to permit proper consolidation around the gasket.
The external take-up clamps shall be constructed of Series 300 non-magnetic stainless steel and shall utilize no welds in their construction. The clamps shall be installed by torquing the adjusting screw using a torque-setting wrench available from the connector manufacturer.
Selection of the proper size waterstop for the structure and pipe requirements shall be in strict conformance with the recommendations of the connector manufacturer. Testing of completed field joints, if required, shall be conducted in strict conformance with the requirements of the connector manufacturer.
The installed waterstop, pipe, and structure shall conform with the requirements of ASTM D 2321 paragraph 7.10 for Manole Connections.