Hollow blocks made of pumice

Hollow blocks are widespread today - among other things, they are also made from pumice. The processing is relatively easy - everything you still need to know about pumice can be found here.

Background information

Hollow blocks made of pumice are a good way of building very insulating walls. The material contains many air pockets and therefore has a very low thermal conductivity.

  • Also read - hollow concrete blocks
  • Also read - This is how hollow blocks are bricked up
  • Also read - buy hollow blocks cheaply - comparison of providers

In contrast to many lightweight concrete blocks, pumice consumes very little energy in its production and is therefore a very interesting building material from an ecological point of view.

Current offers

Hollow blocks concrete
36.5 x 24.5 x 23.8 cm, toothed sheer.de 0.75 EUR / piece
Concrete hollow stone, 11.5 x 49 x 23.8 cm sheer.de 0.73 EUR
Other hollow stones
Pumice concrete hollow stone, 49.7 x 30 x 23.8 cm ebay.de 3.07 EUR
Expanded clay hollow blocks, 11.5 x 49 x 23.8 cm sheer.de 1.05 EUR / pc.

What to look for when buying? / Recommendations

There is often confusion between the terms hollow stone, hollow block and shuttering stone - so always pay close attention to what you need for your project.

Further information on the topic:

  • Wikipedia article on hollow blocks: LINK
  • DIN EN 15435 for concrete shuttering blocks: download, pdf
For Bims: long dry heating times in walls that you have built from Bim's hollow block stones, you need significantly longer dry heat than with other building materials. You should also consider that in your schedule.