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Projects: Case Studies

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Location: Rhode Island, USA
Owner: Struever Bros. Eccles & Rouse
Engineer: PCI Consultants
Repair Contractor: New England Dry Concrete

Royal Mills Riverpoint Apartments

Rhode Island, USA

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  • Royal Mills Riverpoint Apartments

Background

Winner of the 2010 New England ICRI Project of the Year! 

Built in 1890, Royal Mills near Providence, Rhode Island, once operated one of the world’s busiest hydro-powered cotton mills. In 2004, the mill was purchased with the plan to convert the building into trendy apartments. However, a major fire, 120 years of harsh wet weather, heavy industrial use and neglect from 10 years of vacancy had taken its toll. Royal Mills would need considerable restoration and waterproofing. The mill’s location on the banks of the river made excavation and external waterproofing challenging.

New England Dry Concrete was brought in to assess the site, they found severe water intrusion including wet stone and brick inside occupied apartments, poor conditions in many sub-grade units and no insulation or weather stop from the outside, allowing the weather to migrate right through the walls.

Solution

Along with extensive cosmetic work, significant waterproofing was needed to bring the space to habitable levels. New England Dry Concrete used Kryton’s line of products because it allowed the company to waterproof from the inside out, leaving the building’s beautiful stone exterior intact. As the site sits along a canal and waterfall, the resistance to hydrostatic pressure that the Kryton line of products offered was a very important benefit.

The extensive waterproofing repair work included:

  • 305 linear meters (1,000 feet) of cracks sealed with the Krystol Crack Repair System
  • Krystol T1/T2 Waterproofing System applied to interior walls to waterproof below the river level
  • 23,000 square meters (250,000 square feet) of Hydrostop was used to seal the original stone exterior and reduce water absorption
  • To reduce permeability Krystol technology was added to the mortar used to repair the historic stone veneer
  • Several slabs were poured using the Krystol Internal Membrane (KIM) admixture to provide a permanent waterproofing solution and eliminate the need for external liners
  • Over 1500 window sills and lintels were repaired with Krystol Bari-Cote and Krystol Plug
  • Several concrete and rubble elevator pits were repaired using KIM

Sustainability was important to the developer, much of the original flooring was refinished and 50% of all construction debris from the historic site was reused in signage and other public areas. 

Developer benefits of using Kryton’s Krystol System:

  • Permanent dry concrete, stone and brick
  • Zero VOCs (Volatile Organic Compounds)
  • No tar or petroleum based materials
  • Restored original aesthetics on interior and exterior
  • Greatly decreased jobsite waste
  • Cost effective solution
  • Provided single source system warranted from manufacturer

Now the building takes its rightful place in the US National Historic Register of buildings, providing elegant and dry homes to 250 families.


Products and Systems Used:

Krystol Internal Membrane™ (KIM®)

Krystol Internal Membrane (KIM) is a hydrophilic crystalline admixture used to create permanently waterproof concrete.

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Krystol T1® Concrete Waterproofing

Krystol Leak Repair System

Krystol T1 is a surface applied crystalline slurry treatment that transforms new or existing concrete into a permanent waterproofing barrier.

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Krystol Bari-Cote™

Krystol Bari-Cote is a high-strength crystalline concrete waterproofing top coat used to resurface and repair concrete or masonry.

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Krystol Plug™

Krystol Leak Repair System

As part of the Krystol Leak Repair System, Krystol Plug is a rapid-setting hydraulic cement product that when mixed with water is used to stop flowing water and repair leaking cracks, holes and joints in concrete.

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Hydrostop™ Sealer

Hydrostop Sealer is a high-performance penetrating sealer used by itself to protect concrete, brick, mortar and masonry from the damaging effects of water intrusion.

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