From the time of construction, concrete bridge decks are exposed to a wide range of mechanical and environmental stressors. Adding fibers and modifying the concrete mixes used for bridge decks can transform their strength and durability, while minimizing the need for maintenance and repair over time.
To enhance the performance and longevity of bridge decks, researchers investigated the use of fibers and other additives to improve the conventional concrete mixes and mitigate cracking issues. This project involved testing a number of concrete mixes, varying the types and amounts of fibers and other ingredients to identify the combinations that produce a stronger, more durable, and yet workable concrete.
Bridge engineers across the state can use the newly developed fiber-reinforced concrete mixes as a cost-effective solution to minimize bridge repair and reconstruction needs and give Iowa’s drivers a better travel experience with fewer disruptions.
Learn more about this project in Iowa DOT’s new research brief.
Delivering targeted solutions for Iowa's transportation future.
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