July, 2002

NASA/Langley Facility 1192 Exterior Restoration

Compass Contracting has just completed repairs to Building 1192, the Financial Administration Offices, at the Langley Research Center.

The scope of work for this project included the following:

• Epoxy injection of cracks in concrete spandrel beams.
• Masonry tuckpointing.
• Applying elastomeric waterproof coating over the repaired spandrel beams.
• Retrofit sheet metal cladding over existing concrete windowsills.
• Cleaning the exterior masonry/concrete.
• Misc. caulking.
• Routing & sealing of non-structural cracks in precast concrete elements.
• Removal/replacement of severely damaged concrete windowsills.

Sika epoxies, sealants, mortars and coatings were chosen for use on this project.NASA was particularly concerned that an accurate mortar match be achieved, for use in the masonry tuckpointing. Compass was able to custom blend mortars, at our shop, to achieve the desired color.

We also fabricated and installed the .040 Kynar coated, aluminum sill cladding. Each, of the 22 sill claddings, varied in dimension. This resulted in having to make 22 individual templates to insure an accurate fit.

The epoxy injection repairs, performed on the spandrel beams, resulted in a difference of surface texture, in the areas where the epoxy gel seal and injection ports were removed. These blemished were successfully hidden by using Sika Elastocolor, medium textured, coating.

Severely damaged sills were removed and their replacements were formed and poured in-place. The project was completed on schedule and within budget. This was our forth exterior restoration project at NASA/Langley.

Virginia Living Museum

We have recently begun work on the major new addition to the Virginia Living Museum, under contract to W.M. Jordan company.

Virginia Living Museum Foundation Waterproofing & Drainage Piping Installation (in-progress)

Our scope of work on this project will be to install the following:

• Foundation waterproofing.
• Foundation drainage mat & drainage piping.
• Hot fluid-applied rubberized asphalt waterproofing system – Plaza areas and Observation Decks.
• Architectural pavers on elevated pedestal supports.
• Grifolyn Vapor Barrier underneath the basement floor slab.

The products to be used on this project as follows:

• Cetco’s Voltex Bentonite Wateproofing.
• Cetco Aquadrain 15X composite drainage mat.
• Monsey Bakor 790-11 rubberized asphalt waterproofing system & pedestal paver system.

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Compass Contracting, Inc.
For more information on these products & services, please contact us:
Phone: (757) 827-5760
Fax: (757) 827-5284
Email: info@compasscontracting.com