• 1K Posts
  • 1.57K Comments
Joined 1 year ago
cake
Cake day: June 12th, 2023

help-circle






















  • Reinforced autoclaved aerated concrete (RAAC) is a lightweight material that was used mostly in flat roofing, but also in floors and walls, between the 1950s and 1990s.

    It is a cheaper alternative to standard concrete, is quicker to produce and easier to install.

    It is aerated, or “bubbly”, like an Aero chocolate bar.

    But it is less durable and has a lifespan of around 30 years.

    Its structural behaviour differs significantly from traditional reinforced concrete.

    Moreover, it is susceptible to structural failure when exposed to moisture. The bubbles can allow water to enter the material.

    If that happens, any rebar reinforcing RAAC can also decay, rust and weaken.

    Because of this, RAAC is often coated with another material, such as bitumen on roofing panels. But this material can also degrade. Source

    This is an international issue btw.









  • I think you forget that women and children still don’t have enough power, at any age, to deny any man what he wants. They still die doing that, or are beaten within an inch of their lives, or are fired/written up for refusing sexual advances, or are put in situations where they’ve received no training but have to run a dangerous machine anyway.

    That is not something any child should ‘have’ to learn.

    How about instead we crack down on the businesses that do shit like that … maybe 1st offense they lose their business … 2nd offense they lose their life.