Corner Pompei Oven following Forno Bravo instructions-Loei Thailand

[Garouda]

I am not sure what post are showing not to put ceramic board against vcrete. A 5 to1 Vcrete (min 4") first (against concrete slab the topped with CaSi board would be great, or all v-crete. Hebel which is an aerated concrete has been used a bit by our Aussie builders as a base layer. I am not sure how much heat Hebel or aerated concrete can handle though.

Anyway, it's too late for cellular concrete blocks (aerated concrete), I just wanted to share my thoughts...
I'll go for 4" vermiculite.
Any hint about the build of the form work? I searched the forum but could only find pictures, some are well detailed though. Your project(s?) look very professional indeed!

[UtahBeehiver]

I am not sure what post are showing not to put ceramic board against vcrete. A 5 to1 Vcrete (min 4") first (against concrete slab the topped with CaSi board would be great, or all v-crete. Hebel which is an aerated concrete has been used a bit by our Aussie builders as a base layer. I am not sure how much heat Hebel or aerated concrete can handle though.

[Garouda]

At this stage, I have two questions :
1. I tried to find the design of the floor pattern for my vermiculite insulation floor, got many pictures, but no real template.
2. All the posts are opposing vermiculite against ceramic fibre board, what about cellular concrete?
Vermiculite: coefficient of thermal conductivity between 0.08 and 0.09 W/m.K.
thermal conductivity coefficient of cellular concrete goes down to 0.09 W/m. K, very close to vermiculite. Cellular concrete can easily be cut with a hand saw.
Anyway, I'll go for vermiculite for one good reason, I already have it on hand, but I'm wondering whether I could use cellular concrete as thermal block between the floor and the landing.
I did not use any formwork for the base of the oven, but the slabs that I had left over from the construction of the house. I didn't think of it, but I could have integrated two thicknesses (2x7cm) of cellular concrete blocks into the concrete using the few blocks I had left. Furthermore, I have a handsaw for cellular concrete and I could easily have cut these blocks, straight, no curves, which would have avoided me building the formwork of the base in vermiculite. 14 cm of cellular concrete instead of 10 cm of vermiculite would even have provided a better insulation. In addition, I would have gained 4 cm in height... Regrets are sterile, but I write this to share my thoughts.

[Garouda]

Be sure to add some contingency for oops, perhaps 5%

Indeed, also for broken bricks, the bricks I found were not top quality, so I ordered 250 of them, and they topped up with another 20 bricks...
Price USD 0.29 each, refractory mortar 25 kg bag : USD 7.35...
I had to drive through the mountains with a load of about one metric ton on my Ford pickup...
Last Friday, we left home at 1:20 a.m. arrived in Ang Thong at 9:30, and came back home at 20:30... a round trip of 1020 km...
I initially planned to buy them from a factory in Prachinburi, but they were still cooling down in the oven, so I went to another factory of the same company, in Ang Thong, between Singburi and Bangkok.

[UtahBeehiver]

Be sure to add some contingency for oops, perhaps 5%

[Garouda]

I used the spreadsheet designed by Denis aka deejayho https://community.fornobravo.com/fil...etch?id=319989 according to that nice calculator I would need some 150 bricks for the dome and 34 for the floor. I may drive tomorrow to Prachinburi to get my materials. If I calculate the surface of the dome and divide it by the surface of a brick, I come up to a very close result : 23,610/78.8=299, so 300 half bricks or 150 bricks (half a dome S = 2 Πr ² REM I calculate in cm)

[Garouda]

Some more pictures

[Garouda]

Hi there,
Good to see there are other projects around here.
I'm a Belgian living in Thailand since 2003, first in Chonburi where I worked until I retired in 2017. My wife comes from Loei, so we decided to settle in her village, uphill outside the village in fact. The first purpose of that project of pizza oven is to bake bread, and hitting two birds with one stone, also pizza and other foods using the remained heat.
The size of the oven will be Ø 40 inches. I built the foundation two years ago because we were going to pour concrete in the yard in front of the house. The base has just been built by people from the village. I had two walls built because you don't find big concrete blocks here. I'm afraid, I will have to build the rest by myself because it's a technique that neither they nor me are aware of. The next step will be the laying of the vermiculite floor, 4 inches thick. I found a factory of refractory products in Prachinburi and I will go myself to look for the refractory bricks, the refractory mortar as well as the clay for the laying of the refractory bricks of the bottom.https://motproduct.com/%E0%B8%95%E0%...%E0%B8%B2.html I get a lot of inspiration from the videos made by Artisan Made.
https://www.artisanmadethings.com/brick-oven