SGS was originally hired by Potomac Crossing Consultants in 2004 during the replacement project. Initially, SGS completed epoxy injections into cracks in the precast structures being manufactured on-site. Later in the project, SGS injected voids around the anchor heads of the post-tension cables. Finally, SGS designed a camera and remote packer.
The Woodrow Wilson Memorial Bridge
Epoxy Injection and Waterproofing
Concrete restoration and epoxy injections
935 Pennsylvania Avenue NW, Washington DC
SGS, in conjunction with J.F. Brinker, performed partial and full-depth concrete repairs to the parking decks. The scope included saw cutting large areas of the slabs, installing shoring and formwork, installing new rebar, and pouring the slab areas back. Additionally, epoxy injections were performed into cracks within the structure.
J. Edgar Hoover FBI Building
(GSA) General Services Administration
Concrete restoration, concrete strengthening (FRP – Fiber Reinforced Plastic), fireproofing
6401 Security Boulevard, Baltimore, Maryland
SGS worked as a subcontractor for Hensel Phelps to perform interior and exterior restoration work at the historic 10-story Arthur J. Altmeyer Building on the Social Security Administration campus in Woodlawn, Maryland. The work included interior and exterior concrete rehabilitation, concrete strengthening with FRP, and fireproofing.