Dry weight of ash

Jul 18, 2024 Last reply: 2 years ago 12 Replies

I’m having a go at making a traditional hay rake out of green ash. At present it would make a formidable weapon due to its weight (and my reluctance to keep paring the wood much thinner).



Are there any guides to the weight difference between green ash and seasoned ash?



Tim


I think European ash can vary by quite a bit, but nominally it is 710kg/m^3

Green weight could be something like 1,015 kg/m^3

From the Subject line, I thought you were writing about the products of cremation.

Do you have a bit of the ash that you could weigh, dry out in the oven, then reweigh?

There are plenty of cheap moisture meters out there. If such a meter says your bit of wood is (say) 18% water, then...

Hmm. Let me think about this a bit more.

Thanks. Good enough as an indicator of weight loss.

Tim

I have a meter that just lights red LEDs for damp and green for dry. Can you really get meters that give a %age?

Impressive, and not that expensive.

I think I paid around £12 for mine (it was about 8 years ago) and I didn't know there were any out there which did not have a %age readout.

This is the one I have.

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I am a bit miffed to see that they are available for only £6, incl postage. I am sure I paid a lot more when I got mine 20 or 30 years ago.

That would sink in water and IME ash doesn't

The blue book gives a basic density of 0.53 and a green density of 0.78 (780kg/m3) moisture content varies with part of tree and season, being lowest in winter but it also varies with the size of the tree and the part of the stem.

Mine's from Sthil & cost about £12 some 15 years ago.

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