PROBLEM
As the Corps’ water resources infrastructure surpasses its designed service life, the risk of component failure due to material degradation is an increasing concern. Further, maintenance budgets are not keeping pace with the rate of degradation. Long-term performance data are needed to validate newer corrosion-resistant materials so they can be incorporated into industry specification and code documents for design engineers and maintenance personnel.
SOLUTION
Fiber Reinforced Polymer (FRP) composites are proving to be a significant advantage in replacing corrosion-prone steel, timber and concrete structural components; repairing degraded structures; and arresting crack propagation in hydraulic steel structures. Recent research into the long-term durability of FRP composite materials for these applications has proven their durability, strength, low initial costs, and low maintenance costs. This research will extend the life and long-term durability of Civil Works infrastructure.
IMPACT
MILLION ON ONE TYPICAL
Guide specification updates will provide minimum requirements for FRP composite materials in a specific application and realistic service life expectations, saving millions of dollars by extending time intervals between rehabilitation. For example, assuming that 10 percent of the Corps’ Civil Works infrastructure would benefit from FRP composites, and 5 percent of these need maintenance on an annual basis, use of FRP composites could save $2 million annually in Corps Operations & Maintenance on navigation lock gates alone. The savings potential for all applications of FRP composite materials is even greater. 14
$2
OPERATIONS & MAINTENANCE SAVINGS
(ANNUALLY) NAVIGATION
PROJECT
