Reinforced concrete structural walls are used in many buildings to resist forces due to earthquakes. If you live anywhere on the west coast of the U.S., chances are you're in a building that utilizes a concrete structural wall right now. Earthquakes in recent years in Chile and New Zealand show that these walls often fail prematurely. Our research aims to investigate the use of small steel and polymer fibers mixed in with the concrete to improve the performance of such structural walls.