Asbestos pipe

[frenchstoves]

Hello😊 I have a rocket stove heater project using mostly reclaimed old parts of antique stoves ( my day job )
For the riser I have a used piece of 7" white asbestos pipe and I wonder
1. Will it resist the heat enough to serve as a riser. - I am keen on it because it is thinner than brick or cement and will therefore fit into the tall godin stove I want to use for the barrel.
2. Is it very unsafe in terms of flaking particles? It is not visibly flaking nor very worn. Around 30 yrs old made from white not blue asbestos.

[frenchstoves]

Ps. I will be using a mask during construction and it is just a personal project for a shed not for residential use

[Vortex]

Asbestos cement pipe breaks up at temperatures above 300*C, often with quite violent explosions.

[frenchstoves]

Jun 15, 2017 2:14:00 GMT -8 Vortex said:

Asbestos cement pipe breaks up at temperatures above 300*C, often with quite violent explosions.

Ahaa. ! Vortex Thanks very much for letting me know.

I will throw that idea in the bin and get a fire cement mould started.
Do you know what the minimum thickness is for a fire cement riser? I suppose it will depend on the type of cement. Mine is 1200degC.

[Vortex]

Sorry, I don't know what the minimum thickness is for a fire cement riser.

If I was building a riser I would use insulating fire bricks. I'd use two bricks side by side flat on the ground (so they form a 9 inch square), then use a 6 inch hole cutter to cut out the center (IFB is soft and easy to cut), stack them on top of each other and hold them together in a steel angle frame.
That way any damaged bricks can easily be replaced without having to tear the whole thing down and rebuild it.