Reports the results of an experimental investigation carried out on strengthening and repairing of shear failure type reinforced concrete (R/C) columns by using ferrocement jackets. Four identical original R/C columns were constructed. Two original columns were tested to their failure, repaired and strengthened with ferrocement jacket, and retested. The other two original columns were tested after being strengthened using ferrocement jackets. Unless failure occurred at an earlier stage, all columns were tested under cyclic lateral forces and constant axial load. From the test results it was found that the proposed repairing and strengthening technique is very effective.
