This document summarizes research on developing bendable or ductile concrete. Traditional concrete is brittle and cracks easily, which can lead to infrastructure collapse during earthquakes or other hazards. Researchers are working to create ductile engineered cementitious composites (ECC) that can redistribute stress and deform without complete failure. ECC maintains stiffness under normal conditions but yields and deforms without loss of load-bearing capacity during severe stresses, making infrastructure more damage tolerant and resilient to hazards. Testing shows ECC spreads stress through an expanding "onion-shaped" damage zone rather than localized cracking, potentially improving safety.