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30 Hudson Yards is the tallest of the towers on the Hudson Yards megaproject currently being constructed in New York City’s west side. As part of the largest private real estate development in the history of the United States, 30 Hudson Yards will encapsulate 2.6 million ft2 (241,500 m2), rise over 1,300 ft (400 m) high, and feature tenants like Time Warner Cable (Charter Cable Company) and Wells Fargo.
With 30 Hudson Yards anticipating fortune 500 companies, the need to build a structure that is as functional as it is stunning was important. The building would have a below grade foundation which would be subject to possible water penetration and flooding. This required a concrete waterproofing system that could fully tank the structure for the entirety of its service life. Kohn Pedersen Fox (KPF) Associates Architecture firm has a world renowned reputation for using the best products possible in all of their designs.
Kohn Pedersen Fox (KPF) Associates recommended the use of Kryton’s crystalline admixture, Krystol Internal MembraneTM (KIM®), a decision supported by the Building Envelope Consultant, Wiss, Janney, Elstner Associates, Inc. KIM was used to waterproof the foundation base slab, elevator pits, and flood retention tank under the tower. In order to ensure the construction joints and penetrations are watertight, Krystol® Waterstop System (KWS) was used. Krystol T1®& T2® was applied to the preexisting
foundation walls of 30 Hudson Yards, the Retail Podium’s foundation walls and slab, and the machine room.
The project began by waterproofing the underwater vaults and pits by adding KIM® to the concrete and treating all construction joints and penetrations with Krytonite™ Swelling Waterstop and Krystol Waterstop Treatment™. These same products were then used for the flood-proofing wall that wraps around the entire perimeter of the building. Finally, to prevent water infiltration to the entire exposed walkway surrounding the Pier, Kryton’s Krystol T1® Surface Treatment and a topping with KIM Admixture were applied. Using Krystol technology ensures this structure is watertight above and below the surface for its lifespan.
Krystol Internal Membrane (KIM) is a hydrophilic crystalline admixture used to create permanently waterproof concrete.
Krystol T1 is a surface applied crystalline slurry treatment that transforms new or existing concrete into a permanent waterproofing barrier.
Krystol Waterstop Grout is a crystalline grout used to create an internal or external waterstop at construction joints, pipe penetrations, tie-holes and control joints.
Krystol Waterstop Treatment is a cementitious crystalline slurry that is applied to horizontal and vertical construction joints to provide additional waterproofing protection, and protect rebar from corrosion.
Krytonite Swelling Waterstop is a synthetic rubber waterstop that uses swelling pressure to seal concrete construction joints and stop water.
