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2. Autoclaved aerated concrete - Wikipedia

   en.wikipedia.org/wiki/Autoclaved_aerated_concrete

   Autoclaved aerated concrete (AAC) is a lightweight, precast, cellular concrete building material. It is eco-friendly, and suitable for producing concrete-like blocks . [ 1 ] It is composed of quartz sand , calcined gypsum , lime , portland cement , water, and aluminium powder .

3. Fears town could lose market after 500 years - AOL

   www.aol.com/news/fears-town-could-lose-market...

   There are fears Bridgend could be hit after its indoor market was forced to close last year when Reinforced autoclaved aerated concrete was found in its roof. A temporary market was set up, but ...

4. Ninety per cent of schools hit by crumbling concrete scandal ...

   www.aol.com/ninety-per-cent-schools-hit...

   Latest figures show at least 232 schools are to get help through government money after reinforced autoclaved aerated concrete (RAAC) was found amid the national scandal last autumn.

5. Crane brought in to remove Raac from venue's roof - AOL

   www.aol.com/news/crane-brought-remove-raac...

   The Sands Centre in Carlisle has been closed for more than a year after reinforced autoclaved aerated concrete (Raac) panels were found in the auditorium's roof. ... About 200 tonnes of the ...

6. 2023 United Kingdom reinforced autoclaved aerated concrete ...

   en.wikipedia.org/wiki/2023_United_Kingdom...

   The 2023 United Kingdom reinforced autoclaved aerated concrete crisis relates to increased safety concerns over reinforced autoclaved aerated concrete, commonly used historically in roofing and wall construction within the public sector, having gained popularity in the mid-1950s as a cheaper and more lightweight alternative to conventional reinforced concrete.

7. Types of concrete - Wikipedia

   en.wikipedia.org/wiki/Types_of_concrete

   Aerated concrete produced by the addition of an air-entraining agent to the concrete (or a lightweight aggregate such as expanded clay aggregate or cork granules and vermiculite) is sometimes called cellular concrete, lightweight aerated concrete, variable density concrete, Foam Concrete and lightweight or ultra-lightweight concrete, [17] [18 ...

8. 'Critical risk' identified in theatre concrete - AOL

   www.aol.com/news/critical-risk-identified...

   A Surrey theatre's roof and floor are a "critical risk" with many panels identified in a report as having reinforced autoclaved aerated concrete (Raac). The Harlequin Theatre, in Redhill, has been ...

9. Xella - Wikipedia

   en.wikipedia.org/wiki/Xella

   Xella then closed numerous autoclaved aerated concrete plants, exclusively former Hebel plants. Several hundred jobs were lost. Since 2003, Xella has maintained its own research and development company in Brandenburg with two sites - one in Emstal near Lehnin, the other in Brück near Bad Belzig.