Wed, 17 Jun 2026 16:40:05 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92768#Comment_92768 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92768#Comment_92768 Wed, 27 Oct 2010 09:34:00 +0100 tony
straw were the fibres that they had in mind in order to add some strength to the wall.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92845#Comment_92845 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92845#Comment_92845 Wed, 27 Oct 2010 20:13:56 +0100 finny https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92848#Comment_92848 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92848#Comment_92848 Wed, 27 Oct 2010 20:34:41 +0100 evan The fibres can be covered up with a finish of clay plaster on the inside at least.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92858#Comment_92858 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92858#Comment_92858 Wed, 27 Oct 2010 22:20:42 +0100 James Norton
J]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92859#Comment_92859 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92859#Comment_92859 Wed, 27 Oct 2010 22:32:01 +0100 tony
Rammed earth is simple cheap and easy to learn, local etc]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92884#Comment_92884 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92884#Comment_92884 Thu, 28 Oct 2010 09:23:46 +0100 evan
Will you be using rammed earth blocks from a machine or is it all hand made?]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92886#Comment_92886 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92886#Comment_92886 Thu, 28 Oct 2010 09:29:11 +0100 Joiner
http://www.madehow.com/Volume-3/Rammed-Earth-Construction.html]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92888#Comment_92888 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92888#Comment_92888 Thu, 28 Oct 2010 09:38:58 +0100 finny https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92914#Comment_92914 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92914#Comment_92914 Thu, 28 Oct 2010 12:02:54 +0100 dickster https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92918#Comment_92918 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92918#Comment_92918 Thu, 28 Oct 2010 12:40:44 +0100 Joiner
As no one appears to want to address the points raised in that link, can I ask why they've said: "The soil from a new building site is tested to determine its suitability. Organic material must be removed from the soil and, if necessary, a different type of soil can be trucked in and mixed with the existing dirt to create a blend that will work."

finny? You've read the book.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92932#Comment_92932 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92932#Comment_92932 Thu, 28 Oct 2010 14:18:37 +0100 barney

It's a different process - cob is essentially a non compressive method that relies on good adhesion between all the elements and is built in layers that are required to dry before extending.

Rammed earth relies on both the mix and the compressed nature of the fill - so organic matter is a problem because it's compressive

At least that's my take on it

Regards

Barney]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92938#Comment_92938 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92938#Comment_92938 Thu, 28 Oct 2010 15:16:04 +0100 finny bear with my laymans understanding of physics..
Unlike cob, which is literally cobbled together, rammed earth involves a vibratory influence being imposed on the mixture. This effectively reorganises the particulate make up of the mix into a sort of interlocking bond. If the lifts are not effectively rammed or vibrated, the whole thing is prone to slump. The blend of silty clays to larger graded matter is vital to achieving this process, hence the testing of excavated earth on site. Any organic matter is inherently unstable being physically influenced by changes in moisture levels.
Forgive me it's been a while since both reading the book and studying physics!
I will dig the book out of the loft and will donate it to your worthy cause if you pm me. I travelled extensively in the north of Pakistan some years ago and found it to be a stunning country with lovely people. The lack of support for them now is a terrible shame.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92964#Comment_92964 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92964#Comment_92964 Thu, 28 Oct 2010 23:09:33 +0100 wrekin wanderer
Just wondering how the organic matter, if any, should be removed? Don't fancy sieving the lot!]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92965#Comment_92965 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92965#Comment_92965 Thu, 28 Oct 2010 23:49:20 +0100 tony https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92968#Comment_92968 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=92968#Comment_92968 Fri, 29 Oct 2010 07:30:44 +0100 Joiner https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=93031#Comment_93031 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=93031#Comment_93031 Fri, 29 Oct 2010 15:49:02 +0100 finny https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=93032#Comment_93032 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=93032#Comment_93032 Fri, 29 Oct 2010 15:57:13 +0100 bot de paille https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=94364#Comment_94364 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=94364#Comment_94364 Sun, 14 Nov 2010 23:14:20 +0000 earthshipally
Little to no organic matter, at least 20% clay, sand, small gravels nothing bigger than an egg size, once on site do excavations and test earth (sub soil) need to keep foundation dry. Learnd so much more once we started to RAM
good luck]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=94385#Comment_94385 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=94385#Comment_94385 Mon, 15 Nov 2010 10:53:33 +0000 evan https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=94431#Comment_94431 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=94431#Comment_94431 Mon, 15 Nov 2010 17:48:39 +0000 earthshipally
Very low tech, using the RE wall for heat storage and a massive humidity buffer]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=94494#Comment_94494 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=94494#Comment_94494 Tue, 16 Nov 2010 10:46:42 +0000 evan Cheers.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=96257#Comment_96257 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=96257#Comment_96257 Thu, 09 Dec 2010 20:49:38 +0000 earthshipally https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=98150#Comment_98150 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=98150#Comment_98150 Sun, 02 Jan 2011 19:15:22 +0000 wrekin wanderer
What method of formwork did you use to make the walls? I've been checking out the David Easton book, and don't quite understand his preferred method of using vertical colums... Also did you do the ramming by hand?]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=98234#Comment_98234 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=98234#Comment_98234 Mon, 03 Jan 2011 22:30:42 +0000 seascape https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=105977#Comment_105977 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=105977#Comment_105977 Tue, 22 Mar 2011 14:19:10 +0000 tahir https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=106072#Comment_106072 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=6474&Focus=106072#Comment_106072 Wed, 23 Mar 2011 14:23:58 +0000 tahir