Hundreds of engineers are set to scramble to schools tomorrow, it has been reported, to inspect risky sites that may have been built with the aerated concrete, known as RAAC.
Speaking as millions of children prepare to start term tomorrow, Chancellor Jeremy Hunt insisted the government has taken exhaustive action to ensure they are safe.
One document based on assessment conducted at West Suffolk Hospital in April warned of a catastrophic and likely risk of potential failure of the main building.
Hospitals and courts may contain the same crumbling concrete that has forced schools to close, and could be at risk of a similar collapse, an expert has warned.