Structural concrete, although durable, often needs repairing. Impact, abrasion, overloading, fire and aggressive environments all cause damage, and cracks appear, due to errors in design or specification and faulty construction. This text enables the engineer to diagnose the cause of a fault, choose the appropriate remedial technique and ensure that the repair work is completed satisfactorily. It will be of value to all those who need to commission, supervise or carry out repairs to concrete structures.