Unsafe concrete crisis could extend to other public buildings, experts warn

Published

1 year ago

September 2, 2023

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The crisis over unsafe concrete in schools may extend beyond the education sector to other types of public buildings, experts have warned.

They say the scale of the problem with reinforced autoclaved aerated concrete (RAAC) is “much bigger than schools” and could include hospitals, police stations, and court buildings.

Even private sector sites such as shopping centres and residential tower blocks could also be impacted, experts say.

Meanwhile, Labour MP Dame Meg Hillier, chairwoman of parliament’s Public Accounts Committee, has warned the issues with RAAC in schools are just the “tip of the iceberg” of maintenance issues for sites across England.

It comes after 104 schools and colleges were told by the Department for Education (DfE) to partially or fully shut buildings just days before the start of the new school year over fears about the safety of facilities built with RAAC.

Labour has called for an “urgent audit” across the public sector estate, while the Liberal Democrats say the public must be given “urgent clarity” over whether hospital wards and buildings could also be forced to close.

Politics latest: More classrooms could shut over collapsing concrete fears

RAAC is essentially a lighter-weight form of concrete, used to build roofs, schools, colleges and other buildings from the 1950s until the mid-1990s,

But experts fear that the material has now reached the end of its shelf life and is liable to collapse.

Though not confirmed, it is estimated that around 24 schools in England have been told to close entirely because of the presence of RAAC.

Schools minister Nick Gibb has admitted more could be asked to shut classrooms.

But the problem could be far wider than just schools, experts say, with other buildings at risk of “sudden and catastrophic collapse” if RAAC is not removed.

Chris Goodier, professor of construction engineering and materials at Loughborough University, said the “scale of the problem is much bigger than schools”.

What is Reinforced Autoclaved Aerated Concrete?

Reinforced Autoclaved Aerated Concrete – handily shortened to RAAC – is essentially a lightweight form of concrete.

It was used to build roofs, schools, colleges and other buildings from the 1950s until the mid-1990s, according to GOV.UK.

In comparison to traditional concrete, RAAC is weaker. It is made in factories using fine aggregate, with chemicals to create gas bubbles and heat.

Both the material properties and structural behaviour differs significantly from traditional reinforced concrete.

In 2019, the Standing Committee on Structural Safety highlighted the significant risk of failure of RAAC planks.

Three years later in 2022, the Office of Government Property sent a safety briefing notice to all property leaders, saying that “RAAC is now life-expired and liable to collapse”.

Chris Goodier, professor of construction engineering and materials at Loughborough University, said: “It is RAAC from the 1950s, 60s and 70s that is of main concern, especially if it has not been adequately maintained.

“RAAC examples have been found with bearings (supports) which aren’t big enough, and RAAC with the steel reinforcement in the wrong place, both of which can have structural implications.”

He says it could cover public sectors including health, defence, and justice, as well as some private sector buildings.

NHS providers have already identified 14 hospitals, which were constructed “either wholly or in major part with RAAC”. Seven of these are considered “critical” and not fit for purpose beyond 2030.

Three buildings operated by Police Scotland have also been found to contain RAAC after an investigation of 65 structures.

Matt Byatt, president of the Institution of Structural Engineers, says any high-rise buildings with flat roofs constructed between the late 1960s and early 1990s may also contain RAAC.

According to Dame Meg, the DfE has been aware of a “significant problem” with RAAC since a roof collapse in 2018.

She warns that this week’s announcement could have a “significant impact” on the department’s wider school maintenance programmes.

In an opinion piece in The Times newspaper, she writes: “At our hearing in July it was clear that officials were being thorough with the proportion of school buildings they were working on, including the surveys of 600 schools with RAAC which have led to this week’s decision.

“But this is the tip of the iceberg of a failing school estate in England. Most of the 700,000 pupils currently being educated in substandard buildings are not in RAAC buildings and will now be waiting longer for the improvements they need.”

Around 104 schools or “settings” in England found with concrete prone to collapse are set to be closed or disrupted – on top of 52 that have already been affected this year.

The government says the schools needed to close because of safety fears, which have arisen due to concrete failing “with no warning”.

While the DfE has previously focused on remediation, Mr Gibb says the department is now taking the “cautious approach” that all of the concrete should be removed.

Labour is calling on ministers to “come clean” and publish the full list of schools that will be impacted, as they have not yet been publicly named.

It has also accused the government of “neglect and incompetence” over their handling of the issue.

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Politics

‘There is a global race underway for Bitcoin’ — Anthony Pompliano

Published

7 hours ago

November 16, 2024

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<div>'There is a global race underway for Bitcoin' — Anthony Pompliano</div>

The election of a pro-crypto President in the United States and growing macroeconomic turmoil will continue to drive investors to Bitcoin.

Politics

Sir Keir Starmer vows to defend budget decisions ‘all day long’ as farmers slam ‘disrespectful’ PM

Published

9 hours ago

November 16, 2024

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Sir Keir Starmer vows to defend budget decisions 'all day long' as farmers slam 'disrespectful' PM

Sir Keir Starmer has said he will defend the decisions made in the budget “all day long” amid anger from farmers over inheritance tax changes.

Chancellor Rachel Reeves announced last month in her key speech that from April 2026, farms worth more than £1m will face an inheritance tax rate of 20%, rather than the standard 40% applied to other land and property.

The announcement has sparked anger among farmers who argue this will mean higher food prices, lower food production and having to sell off land to pay for the tax.

Sir Keir defended the budget as he gave his first speech as prime minister at the Welsh Labour conference in Llandudno, North Wales, where farmers have been holding a tractor protest outside.

Sir Keir admitted: “We’ve taken some extremely tough decisions on tax.”

He said: “I will defend facing up to the harsh light of fiscal reality. I will defend the tough decisions that were necessary to stabilise our economy.

“And I will defend protecting the payslips of working people, fixing the foundations of our economy, and investing in the future of Britain and the future of Wales. Finally, turning the page on austerity once and for all.”

He also said the budget allocation for Wales was a “record figure” – some £21bn for next year – an extra £1.7bn through the Barnett Formula, as he hailed a “path of change” with Labour governments in Wales and Westminster.

And he confirmed a £160m investment zone in Wrexham and Flintshire will be going live in 2025.

‘PM should have addressed the protesters’

Among the hundreds of farmers demonstrating was Gareth Wyn Jones, who told Sky News it was “disrespectful” that the prime minister did not mention farmers in his speech.

He said “so many people have come here to air their frustrations. He (Starmer) had an opportunity to address the crowd. Even if he was booed he should have been man enough to come out and talk to the people”.

He said farmers planned to deliver Sir Keir a letter which begins with “‘don’t bite the hand that feeds you”.

Mr Wyn Jones told Sky News the government was “destroying” an industry that was already struggling.

“They’re destroying an industry that’s already on its knees and struggling, absolutely struggling, mentally, emotionally and physically. We need government support not more hindrance so we can produce food to feed the nation.”

He said inheritance tax changes will result in farmers increasing the price of food: “The poorer people in society aren’t going to be able to afford good, healthy, nutritious British food, so we have to push this to government for them to understand that enough is enough, the farmers can’t take any more of what they’re throwing at us.”

Mr Wyn Jones disputed the government’s estimation that only 500 farming estates in the UK will be affected by the inheritance tax changes.

“Look, a lot of farmers in this country are in their 70s and 80s, they haven’t handed their farms down because that’s the way it’s always been, they’ve always known there was never going to be inheritance tax.”

On Friday, Sir Keir addressed farmers’ concerns, saying: “I know some farmers are anxious about the inheritance tax rules that we brought in two weeks ago.

“What I would say about that is, once you add the £1m for the farmland to the £1m that is exempt for your spouse, for most couples with a farm wanting to hand on to their children, it’s £3m before anybody pays a penny in inheritance tax.”

Ministers said the move will not affect small farms and is aimed at targeting wealthy landowners who buy up farmland to avoid paying inheritance tax.

But analysis this week said a typical family farm would have to put 159% of annual profits into paying the new inheritance tax every year for a decade and could have to sell 20% of their land.

The Country and Land Business Association (CLA), which represents owners of rural land, property and businesses in England and Wales, found a typical 200-acre farm owned by one person with an expected profit of £27,300 would face a £435,000 inheritance tax bill.

The plan says families can spread the inheritance tax payments over 10 years, but the CLA found this would require an average farm to allocate 159% of its profits each year for a decade.

To pay that, successors could be forced to sell 20% of their land, the analysis found.