A Roman solution to Raac’s ruin – is self-healing concrete the answer?

After recent building failures, researchers are looking to ancient materials for inspiration in creating more durable materials that repair themselves using glue or even bacteriaConcrete research gets caricatured as the epitome of dull – until the roof falls in. The dangerous state of many British schools built partly from reinforced autoclaved aerated concrete (Raac) has dominated headlines, alarmed parents and embarrassed the government, leading to emergency closures just as the new scho