I read that processing goes faster with aerated concrete – how am I supposed to imagine that? If you just assume 1000 hours for a brick shell construction, where would you be with aerated concrete?
You should imagine it like this: the aerated concrete is sufficiently lighter to be manageable even in stones twice as large. Therefore, the mason only has to lay half as many of the twice as large stones for the same amount of masonry.
I just spoke on the phone with a contractor who said he could offer Ytong, calcium silicate brick or Poroton. Is pumice one of these? Or is that something else?
That’s why I’m saying the laughing third party: the fronts in the singer dispute between the fans of the two most popular and popularly known stones run between aerated concrete (formerly called gas concrete, the best-known brands Ytong and Hebel are no longer competitors but both belong to Silka, which also manufactures calcium silicate bricks) and porous bricks (best-known brand: Poroton). Ytong and Poroton have long since shared the fate of Tempo and Tesa, being perceived synonymously as "generic names," even though they are actually brands. The northern Germans are predominantly white masons (monolithic aerated concrete, calcium silicate bricks used only in the WDVS variant due to insulation value), whereas the southern Germans are red masons. Pumice is a volcanic rock that is mixed with cement to form blocks formerly also called "Schwemmstein," and resembles expanded clay (but is lighter gray). Pumice is as widespread as far as the Laacher See volcano (located in the volcanic Eifel near the Pellenz) has spewed its ash rain. In the area of the Neuwied Basin / Cologne Bay, this stuff lies practically under every field. Pumice stones are available, for example, from KLB, Meurin or (as Bisotherm in pink) from Riffer, widespread in the Koblenz and Limburg area up to Franconia. Whether it is known on Hallig Hooge or in Reit im Winkl, I do not know; but in Saarland it should be familiar in building material trade. Pumice is also available as a kind of “Milchschnitte”/sandwich with an insulation layer between two stone shells; or as a filled cavity stone.