Akwastop™ Hydrophilic Rubber Waterstop
Product Code: Akwastop™ Hydrophilic Rubber Waterstop
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  • Akwastop is a hydrophilic rubber waterstop that swells upon contact with water to prevent water infiltration through cast-in-place concrete construction joints subjected to continuous or intermittent hydrostatic pressure. It is easy to install and functionally replaces conventional passive PVC dumbbell waterstops. Akwastop is also ideal for industrial projects that may require an elevated level of chemical compatibility for long term performance.

    The key to Akwastop’s effectiveness is its 300% swelling capacity when wetted and its plasticity to contour the surrounding surface. The hydrophilic agent is distributed throughout the product, not just limited to certain sections like some other hydrophilic waterstops, to provide consistent sealing performance along the entire installation. Akwastop’s exceptional plasticity allows the product to fill small voids and cracks in the concrete directly around it.

    Excellent Chemical Resistance

    Akwastop has been successfully tested to withstand 165 feet (50 m) of hydrostatic pressure. Additionally, Akwastop has excellent chemical resistance to hydrocarbons, salts, and many organic acids and bases. Because of its excellent chemical resistance it is used in the concrete joints of secondary containment structures. Akwastop is designed for concrete 8” (200mm) thick or greater and requires a minimum of 3” (75 mm) of concrete coverage on all sides. Akwastop is not a self-adhering product; it is secured into place with AS-100 Adhesive. Additionally, on extremely rough surfaces Akwaswell swelling paste can be installed first, filling pockets and depressions, and duel service as an adhesive for the Akwastop gasket.

    Akwastop is produced in a rectangle cross-sectional shape measuring 0.75” x 0.375” (20mm x 10mm) in roll lengths of 33 feet (10 m). It is easy to install and does not require the workmanship rigors of welding the joints or hog wire tying the product into position associated with traditional PVC dumbbell type waterstops. Simply adhere Akwastop to the concrete with CETSEAL Adhesive and then pour the concrete. Coils ends are butted together, not welded, to form a continuous waterstop.

    Akwastop enhances the performance of a sound external waterproofing system, by sealing the areas of highest probability of water intrusion through the concrete, and should therefore be implemented as part of the waterproofing design.

    Limitations Akwastop is not an expansion joint material and should not be used as such. A traditional expansion joint material must be used in expansion or any moving joint. A minimum of 3” (75 mm) of concrete cover must separate Akwastop from the face of the concrete.

    Applications
    • Poured-in-place concrete construction joints
    • New-to-existing concrete construction
    • Around mechanical and structural penetrations through the concrete
  • https://www.constructionmidwest.com/components/com_mijoshop/opencart/download/1163491674AKWASTOP.pdf
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