The Mangy Moose Restaurant – Jackson Hole, WY

Since opening in 1967 at the base of Jackson Hole’s new ski resort, the Mangy Moose has been a prominent local landmark along Village Drive in Teton Village, Jackson Hole Wyoming. The 30,000 square foot building houses a restaurant, saloon, grocery market, and retail space. It has long been a favorite of locals and the many visitors touring throughout this area.

The owner of the Mangy Moose, Jim Terry, had contacted Nelson Engineering in Jackson, Wyoming about settlement that had occurred in the building. It was discovered, by cutting a hole through the concrete slab on the ground floor of the building, that a sewer line leak from a dish washer had softened the supporting soils of the foundation and columns. Warped wooden beams in areas of the building indicated that the leak had likely gone undetected for a number of years, causing settlement and compromising the structural integrity of the building’s foundation.
Concrete Stabilization Technologies’ Regional Engineer, Roy Mathis, was contacted by Robert Norton, P.E., of Nelson Engineering concerning the settlement issues the building was experiencing and to help design a repair option that would effectively stabilize and preserve the building’s foundation.

After review of plans and photographs, a site visit and survey were performed by Roy Mathis and Kelly Schild. Initial soil density tests were performed and analyzed. Additional concerns were raised during excavation for the sewer line repair. Cracks in the mortar and a change in slope at one of the columns indicated the pivot point of the settlement.

Two repair options and pricing were presented for mitigation to stabilize the soils and get a slight lift. One option to stabilize the soil only, and a second option to obtain a partial lift of the foundation, columns, and floor. It was desirable to obtain a maximum lift without causing additional distress to the building; a full lift was not recommended however, due to the time warped timbers, and not wanting to cause additional distress to the building. The work proposal to stabilize and perform the partial lift was accepted and work scheduled for the following week. With ski season quickly approaching and final preparations being made, it was very important to the owner that repairs be completed in a timely manner.

CST Project Superintendent Tomas Ramos, and manager David Yoder met on site on November 13th to discuss de-tails of the planned repair. Work began the same day as the crew set probes and prepared the injection layout. Extent and depth of the weakened soils were determined during drilling and probe placement. Injection depths and areas were determined to assure a permanent and long lasting solution.

Inclement weather, two feet of new snow, and minus twenty degrees halted work the following day as equip-ment would not start in the freezing temps. The crew got an early start on day three, however, and after finishing probe placement, shot an initial survey, and began injections using the CST technologies. Injections were made directly below the columns and spread footers with emphasis on the weak soil zones. Existing voids were filled, and soil stabilized as crews completed repairs. All injections were completed from the interior of the building with very little disruption to owners and management. The project was completed on time and on budget, allowing owners to complete last minute details before welcoming skiers and tourists for the 2014 winter ski season. By using the CST technologies, the long lasting repairs provided a tremendous cost savings to the owners and very little disruption to their pre-ski season preparations. Stabilization of the building’s foundation will provide for many more years of use and enjoyment of this famous local landmark.

American Furniture Warehouse Slab Stabilization – Longmont, CO

Concrete Stabilization Technologies was contacted by Opus Northwest, LLC, concerning American Furniture Warehouse’s Longmont Colorado distribution location. The distribution warehouse was experiencing problems with the facility’s floor slabs. The warehouse floor slabs had deflection at the construction control joints caused by slab curl. When the edges or corners of a slab curl up, often at construction joints, it’s caused by concrete at the top of the slab shrinking or contracting faster than concrete at the bottom. Drying shrinkage is the usual cause. Water leaves the top surface of the slab faster than it leaves the bottom, creating shrinkage forces that can raise slab edges or corners.

CST used a dial gauge micrometer at the construction control joints to monitor slab deflection during load transfer from fork-lift traffic. Slab deflection was approximately 1/8” prior to slab under sealing and stabilization with CST expanding structural polymer. The uneven floor slabs were causing excessive wear and tear to the facilities forklift and loading equipment used on a daily basis in the warehouse and also creating a trip hazard for employees working in the facility. It was determined that 222 of the warehouse floor slabs, approximately 50,000 square feet of floor, would need to be stabilized.

Stabilization of the warehouse slabs began with crews mapping out, drilling, and placing 5/8 Inch injection probes through the concrete slabs.

CST polymer was injected in a pattern of every 4 feet below the slabs, filling voids, stabilizing, and providing a positive seal between the underlying soils and the concrete slabs.

Different sections of the warehouse floor area were stabilized over the course of the next eight days. Slab deflection was tested with forklift traffic after CST polymer injections. Zero movement on the dial gauge micrometer verified that the slabs were completely stabilized, thus extending the service life of the existing slab. On the five year inspection in November of 2014, no additional settlement or deflection has occurred since CST completed the stabilization of the Longmont American Furniture Ware-house in June of 2009.

Benefits of Slab Stabilization & Under Sealing using CST Expanding Structural Polymers:

  • Eliminates high costs associated with tearing out and replacing faulted concrete.
  • Provides a positive seal between underlying soils and existing concrete slabs, stabilizing and increasing the use life of the existing concrete.
  • Little to no disruption to business operations. CST polymer cures quickly, within approximately 15 minutes after injection. This allows for full use of the treated areas, immediately after repairs are completed.
  • State of the art equipment and highly trained technicians provide quick, clean, and surgically precise repairs.
  • Long lasting, environmentally safe, hydro-insensitive material has no negative impact on surrounding soils or adjacent water supplies.
  • High resistance to manufacturing chemicals and oils.
  • Puts businesses in control of repair and restoration requirements of problems associated with industrial, commercial, and residential concrete assets.