Sep 19, 2023 · RAAC is one of many materials that hasn't been looked properly over the decade." This is a particular problem for schools which sometimes have just one building manager, …

Sectional view of autoclaved aerated concrete. Palette stacked autoclaved aerated concrete blocks. Autoclaved aerated concrete (AAC) is a lightweight, prefabricated concrete building …

Apr 26, 2024 · RAAC has proven to be not as durable as other concrete building materials. It has a variable service life which is influenced by many factors and an arbitrary time, such as the …

Sep 18, 2023 · Identifying RAAC and assessing risk. Although issues relating to RAAC have recently risen in prominence, we had already seen commercial clients recommending that all …

RAAC’s porous nature makes it particularly vulnerable to water, leading to damage that can compromise the structural integrity of the building. Where to look. RAAC was often used in …

Jan 29, 2023 · Reinforced Autoclaved Aerated Concrete (RAAC) is a lightweight form of concrete. The Standing Committee on Structural Safety (SCOSS) has noted that: ‘Although called …

The Institution of Structural Engineers information on Reinforced Autoclaved Aerated Concrete (RAAC) provides authoritative guidance on RAAC. RAAC is a lightweight form of precast …

Oct 12, 2023 · RAAC's high porosity makes it less reliable for structural purposes; cracking can occur without warning, with the risk of sudden collapse in load-bearing elements. “The porous …

Sep 11, 2023 · “Larger RAAC units are particularly prone to sudden cracking, which can be catastrophic in load-bearing elements, and a collapse can happen with no warning”, Coome …

Information on Reinforced Autoclaved Aerated Concrete (RAAC). RAAC was a building material used in some buildings to form roof planks, wall panels, and sometimes floor planks, between …