Jacksonville, Fla. (NNS) -- Projects at Naval Station Mayport were recognized by the American Concrete Institute(ACI), Florida First Coast Chapter Nov. 14 in Jacksonville, Fla. at the Chapter's 2013 Annual Awards Banquet.
The awards recognized constructions with a "Significant Concrete Structure."
Two of the seven projects receiving an award were Navy structures on board Naval Station (NS) Mayport. The Wharf Charlie (C-1) Improvements project and the Mayport Fitness Center were recognized.
A "Significant Concrete Structure" is a concrete structure in which concrete is used in a unique or innovative way and/or concrete is used because of its advantages over other materials with consideration to aesthetics, durability, cost and scheduling flexibility.
Wharf Charlie is a general-purpose berthing wharf originally constructed in 1952. The berth is one of two primary deep-draft berths at Mayport. When construction began, the existing bulkhead was 57 years old and exhibited signs of severe corrosion and partial failure.
The Wharf is considered a "Significant Concrete Structure" because precast/prestressed marine concrete products and specifically designed marine and flowable grout mixes were used to enhance the durability of the concrete structure.
The contractor developed a new marine mix designed to enhance the structure's durability, increase its propensity to protect it from the severe environment, and improve overall sustainability. The mix design exceeded the compressive strength requirements while retaining a high resistance to chloride ion penetration and possible subsequent steel corrosion.
"Having the opportunity to work on a unique, durable and lasting mission-related construction effort is rare," said NS Mayport Public Works Department construction engineering technician Joann Mason of the Wharf Charlie construction effort. "I am honored to be a part the Naval Facilities Engineering Command (NAVFAC) Southeast Mayport team as a contributing member on this historical first - a double-deck wharf development."
The NS Mayport Fitness Center improvements included a 100,000-square-foot addition and renovation project that required the design and construction of a one-story indoor pool. The gym centralizes all desired fitness programs in one facility on base. It has 18,000 plus square-feet of weight training and cardio area, a cycling studio, two championship-sized basketball courts, two racquetball courts, three group exercise rooms, a family fitness room, and the 10 lane, 50-meter indoor pool. The renovated facility also includes locker rooms, offices, a child care area and a sauna.
"A significant amount of concrete was used constructing the 50-meter indoor pool and renovating the now 100,000-square-foot facility," said Mason.
The fitness center will support Navy training requirements and offer multiple opportunities for self-directed and group-led physical fitness options. The center's facility spaces were designed to serve multiple purposes, and include systems that extend the building's service life far beyond traditional projects.
The ACI asks for nominations each year to showcase the best projects that display concrete structures that are unique and innovative.