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RAAC in UK Schools

In recent weeks, a concerning revelation has shaken the education sector in the UK. Over 100 schools, colleges, and nurseries across England have been forced to close or implement urgent mitigation measures due to the discovery of a hazardous construction material known as Reinforced Autoclaved Aerated Concrete (RAAC). This unexpected turn of events has raised significant questions about the safety of our educational infrastructure. Let’s delve into the essential details surrounding the RAAC concrete scandal, from its composition to its widespread use and the subsequent repercussions.

Understanding RAAC Concrete:

Reinforced Autoclaved Aerated Concrete, commonly known as RAAC, represents a lightweight building material primarily employed in flat roofing, and on occasion, in floors and walls. Recognisable for its distinctive aerated texture, RAAC initially gained popularity for its cost-efficiency, expeditious production, and simplified installation process. However, it carries a trade-off – it possesses a shorter lifespan of roughly 30 years in comparison to conventional concrete.

The Scandal Unfolds:

The RAAC concrete scandal came to light when the Department for Education issued an order for the closure of affected buildings in more than 100 educational institutions across England. This drastic measure was prompted by the realisation that RAAC, when exposed to moisture, becomes susceptible to structural failure, leading to potentially catastrophic consequences.

A Historical Overview:

RAAC was actively used in construction projects between the 1950s and 1990s. However, concerns about its structural integrity were raised as early as the 1960s. By the 1980s, reports indicated that short-term exposure to moisture could weaken the material by 13%, while long-term exposure to air pollution could lead to a 40% reduction in strength. These findings highlight that the risks associated with RAAC have been known for decades.

Government Response and Accountability:

In response to this crisis, the UK government has pledged to allocate necessary funds from the Department for Education’s existing capital budget to rectify the situation. Chancellor Jeremy Hunt has unequivocally assured parents and the public that the government will spare no expense in addressing this matter. Furthermore, an investigation has been launched to ascertain if RAAC was utilised in the construction of other public buildings.

Our Commitment to Safety:

At Active SEN, we stand in solidarity with affected educational institutions. Our unwavering commitment to ensuring the highest standards of safety in education recruitment remains steadfast.


The RAAC concrete scandal serves as a stark reminder of the critical importance of safety in our educational infrastructure. The use of this lightweight and unreliable material has put the structural integrity of numerous schools, colleges, and nurseries at risk. As the investigation continues, it is imperative that we prioritise the safety of our educational institutions and work towards comprehensive solutions to prevent such crises in the future. The RAAC concrete scandal serves as a poignant call to action for improved oversight and accountability in construction practices.

By staying informed about the RAAC concrete scandal, we can collectively contribute to a safer and more secure educational environment for future generations.



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