Sydney Construction Has Started!!

[brickie in oz]

Originally Posted by GianniFocaccia

Obviously, there is some significant buttress mass on either side of this arch.

Thats what keeps arches up, sideways thrust on the lower members.
Auroville Earth Institute, training courses, workshops on Vaults, Arches, Domes(VAD), stabilized rammed earth walls, compressed earth blocks, vaulted structures, compressed stabilised earth blocks, rammed earth.

[david s]

The span was about 1.5 m, but it shows how well cut pieces will stand the test of time, earthquakes, siege, weather etc.

[brickie in oz]

Originally Posted by JD07

I haven't logged on in a while since I got cooking and am a little surprised about the lateral support issue, How long till I should expect to have problems? Its been a few months and no cracks in the flue arch or chimney have occured should I be concerned?

From looking at your pictures you have about 300kgs of weight sitting on top of a single skinned arch and no sideways support, without sideways support arches fail.

Your guess as to when it will happen is a good as mine, it may take ages.

[JD07]

Hey guys I will post this in another section as well but after a successful first few years I am finding it increasingly hard to get the dome and floor up to temp? Fired for 2hrs today and the dome only got to 180 degrees?.???

[Amac]

Fired for 2hrs today and the dome only got to 180 degrees?.???

What kind of temperatures was it reaching. I have yet to put fire in mine but I got the impression that > 500 degrees Celsius was easily achieved. Somebody here must have a suggestion - or did you get an answer elsewhere? Could it be water getting in somehow?

[david s]

Sounds like your oven is wet. It takes a lot of energy to push out the water. Just continue to fire slowly and it will dry out and fire as good as it used to.

[brung99]

With one of the wettest summers I can remember in Sydney, I wouldnt be surprised if water has managed to soak into the oven.