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  2. Autoclaved aerated concrete - Wikipedia

    en.wikipedia.org/wiki/Autoclaved_aerated_concrete

    Reinforced autoclaved aerated concrete (RAAC) is a reinforced version of autoclaved aerated concrete, commonly used in roofing and wall construction. The first structural reinforced roof and floor panels were manufactured in Sweden, soon after the first autoclaved aerated concrete block plant started up there in 1929, but Belgian and German ...

  3. What is RAAC concrete? How to tell if school buildings are at ...

    www.aol.com/raac-concrete-tell-school-buildings...

    Reinforced autoclaved aerated concrete (RAAC) is a lightweight form of concrete that was used in schools, colleges and other building construction from the 1950s until the mid-1990s, according to ...

  4. Xella - Wikipedia

    en.wikipedia.org/wiki/Xella

    The German Federal Cartel Office prohibited the takeover because it was expected to create a dominant position for Xella in the market for aerated concrete and lightweight concrete blocks in the North German and West German regional markets.The company was not able to acquire a majority stake in H+H International.

  5. Types of concrete - Wikipedia

    en.wikipedia.org/wiki/Types_of_concrete

    During the 1980s, Okamura and his Ph.D. student Kazamasa Ozawa at the University of Tokyo developed self-compacting concrete (SCC) which was cohesive, but flowable and took the shape of the formwork without use of any mechanical compaction. SCC is known as self-consolidating concrete in the United States. SCC is characterized by the following:

  6. Concrete block - Wikipedia

    en.wikipedia.org/wiki/Concrete_block

    A pallet of "8-inch" concrete blocks An interior wall of painted concrete blocks Concrete masonry blocks A building constructed with concrete masonry blocks. A concrete block, also known as a cinder block in North American English, breeze block in British English, concrete masonry unit (CMU), or by various other terms, is a standard-size rectangular block used in building construction.

  7. American Concrete Institute - Wikipedia

    en.wikipedia.org/wiki/American_Concrete_Institute

    The American Concrete Institute (ACI, formerly National Association of Cement Users or NACU) is a non-profit technical society and standards developing organization. ACI was founded in January 1905 during a convention in Indianapolis. [1] [2] The Institute's headquarters are currently located in Farmington Hills, Michigan, USA. ACI's mission is ...

  8. Aerated concrete - Wikipedia

    en.wikipedia.org/?title=Aerated_concrete&redirect=no

    This page was last edited on 29 June 2014, at 14:06 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...

  9. AOL Legal

    legal.aol.com

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