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'Weaknesses identified from outset: #RAAC's main limitation
the bubbles and material composition itself make it vulnerable to moisture & water ingress, especially if there's a leak - can lead to strength reduction & corrosion of the rebar.' @PMPmagToday
https://www.pmp-magazine.com/2023/09/07/school-concrete-crisis-how-raac-has-been-used-well-beyond-its-expiry-date/
PMP MagazineSchool concrete crisis: How RAAC has been used well beyond its expiry dateModern building materials are often designed with a limited design life. Exceeding that limit – and not properly maintaining the structures – is risky.