Talk:Autoclaved aerated concrete

message: Hello,
Can we add HEBEL's Xella company as a website reference?
--------------------------------------------------------------------------  —Preceding unsigned comment added by TMGroup (talk • contribs) 14:17, 27 August 2008 (UTC)
replies: text: When considering embodied energy of this product relative to poured concrete or concrete masonry units, keep in mind that AAC is mostly air by volume.  Therefore, the actual Portland cement content by volume is very low relative to solid concrete or CMU.  I agree that this article sounds a bit like a sales pitch, but alas there is not a lot of information on AAC (in English anyway) that does not come from the manufacturers or distributors.  My understanding is that AAC has been very popular in Northern Europe for a long time, and so there may be more information available in other languages.  I would love to see some of it translated.  Randall Nortman (talk) 17:23, 11 October 2008 (UTC)

text: I agree that this article appears to be heavily slanted to the producers claims, without any counter information. I got here looking for an overview of the Radon gas issues of AAC that have caused most EU governments to provide special building regs for AAC block in dwellings, only to find that it was treated as a one off 'aggregate' issue, it isn't there are recorded issues with all AAC blocks emitting radon gas. Also to claim that anything that has cement as a constituent is ecologically friendly is misinformation, to put it mildy. It may be the case that 'comparatively' this is an innocuous product, but we should bear in mind that all cement produces its own weight of CO2 while curing, and much more during its production. The cement industry is the single largest specific industrial user of energy in the world, and is the second most consumed commodity globally, water being the first. AAC is not an ecologically friendly product, it is a partially reduced damage product. 81.111.39.70 (talk) 22:37, 26 May 2011 (UTC)

message: Looks like it to me. --EmersonWhite (talk) 08:46, 18 June 2010 (UTC)
thread_title:  Add copy? 

message: A building where neighbors share walls made of aerated concrete is not fit for human habitation by developed country standards, as it does not attenuate the sound almost at all. Sounds made by physical vibration seem to travel especially easily, like sound from guitar, or even by sweeping the wall/floor join area with a hard brush. It's like there's no wall at all. Very embarrassing in units with toilets on each side of a unit dividing wall.
Absolutely should not be used for unit partitioning and even questionable for in-home walls in a family situation as everybody will be disturbed by any noise producing activity until everybody goes to sleep, including things one would not usually think of as noise as watching tv at normal volumes.
Perhaps feasible for construction of animal shelters, storerooms and sheds, etc.  — Preceding unsigned comment added by 2001:470:36:CFF:50AD:7F4B:226E:2764 (talk) 05:11, 12 May 2014 (UTC)
thread_title:  Horrible sound attenuation properties 

message: Hello fellow Wikipedians,
I have just modified  on Autoclaved aerated concrete. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
*Corrected formatting/usage for http://www.hebel.co.nz/about/hebel%20history.php
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thread_title:  External links modified 

message: 5 mentions of density in the article… but no figure cited.
*The CSR Hebel products are manufactured to a nominal target dry density range of 525kg/m³ to 650kg/m³. 
*Hebel AAC is a lightweight construction material with dry densities ranging from 25 pcf (400 kg/m³) to 44 pcf (700 kg/m³). 
Note: (roughly); 
wood  1500 kg/m³; 
brick   1900 kg/m³.
MBG02 (talk) 06:11, 5 April 2023 (UTC)
thread_title:  How lightweight? 

message: site needs updated due to unsafe material which may degrade after 30 years causing collapse of buildings 2A00:23C8:1118:5F01:A1F0:6517:FEB0:4D98 (talk) 07:48, 1 September 2023 (UTC)
thread_title:  Safety  

message: The sentence containing "calcined gypsum, lime, portland cement, water and aluminum powder", the word is ALUMINIUM, the majority of the world uses ALUMINIUM as the describer for the metal, its alloys and uses say as a powder additive.
92.31.51.0 (talk) 10:31, 1 September 2023 (UTC)
thread_title:  Correction please?