A 1,400-square-foot sulfur pit at a North American refinery required immediate assessment after a partial roof collapse. Following a visual inspection by STRUCTURAL, a full repair was recommended. Because an unscheduled outage creates challenges, however, the owner opted to repair only the collapsed portion and delay the full repair for a scheduled outage.
In March 2000, Calvert Cliffs Nuclear Power Plant (CCNPP), built by Baltimore Gas & Electric in the 1970s, became the first plant in the United States to earn 20-year extensions of its operating licenses from the U.S. Nuclear Regulatory Commission.
A Southern refinery for a major oil and gas company had a concrete dock built in 1910 that needed significant repairs. The 3,000-foot-long dock is connected to an intercoastal waterway and serves as the off-load point for crude oil and the on-load point for petroleum products with ships arriving and departing daily.
Recent investigations revealed concrete spalling and deterioration, due mainly to inadequate rebar coverage, at various locations. The pre-cast panels were cracking between the pieces of glass and the edges of the panel and the surface sand finish was washing away.
On the exterior of the buildings, material deterioration, delamination, fractured and loose elements, material staining, improper patching, as well as ponding water and drainage issues were all found to be issues of concern.
This four-story structure sits on the Palisade Cliff, which is a long bluff overlooking the Hudson River. Built in the late 1960s, the structure stood 40 years with very minimal preventive maintenance. Severe corrosion and structural decay developed as a result of humidity from the nearby river, harsh weather and chlorides from deicing salts.
Constructed in 1973, the structures had never been formally maintained or repaired. In addition to the lack of preventive maintenance, the corrosive nature of the coastal environment ultimately caused the concrete to spall and delaminate. STRUCTURAL was hired to handle the necessary repairs.
The Owner of a downtown Baltimore, Maryland office building agreed to construct a new lobby with escalators for its main tenant.
The Leon County Courthouse Parking Garage is a cast-in-place concrete structure with a capacity of more than 500 vehicles. It consists of five below-grade parking levels and a five-floor office structure above the parking levels. The garage also is home to a 135 ton memorial statue that sits on top of the courthouse's plaza deck which serves as the roof of the parking garage.
The Holcim Portland Precalciner Cement Plant near Florence, Colorado is one of the largest in the United States. It has an annual production capacity of 1.9 million tons of cement and its preheater tower, a 328-ft-tall, reinforced concrete frame structure, houses equipment that reaches 390 feet in height.