Can concrete heal itself?

USC Viterbi School of Engineering researchers created a new method for developing self-healing concrete that replaces the natural aggregates (pieces of rock) in concrete with engineered aggregates that contain healing agents within them. Unlike other methods pursued over the past two decades, their method prioritizes keeping costs low and maintaining other properties of concrete, particularly strength and production method. Self-healing concrete could help increase the longevity of structures close to water sources or in wet climates. Read more