• Post Reply Bookmark Topic Watch Topic
  • New Topic
permaculture forums growies critters building homesteading energy monies kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education skip experiences global resources the cider press projects digital market permies.com private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Nicole Alderman
  • r ranson
  • Anne Miller
  • Pearl Sutton
  • James Freyr
  • Mike Haasl
stewards:
  • Burra Maluca
  • Joylynn Hardesty
  • paul wheaton
garden masters:
  • Greg Martin
  • Steve Thorn
gardeners:
  • Carla Burke
  • Jay Angler
  • Mike Barkley

Is Found-clay ok for a poured J-tube??

 
Posts: 6
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Do i have to use store-bought fire-clay when pouring a J-tube burn-core, or can i use my left-over cob clay i dug myself in the pour mix with perilite and furnace cement??
 
Posts: 9002
Location: Victoria British Columbia-Canada
666
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Probably not, regarding the use of found clay. Most clays will not be able to take the temperatures that are likely. Cracking will almost always occur. I've done some pottery. A huge amount of experimentation is required in order to discover the properties of a given resource. It's not worth it unless many units are produced.
 
michael valdez
Posts: 6
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thanks Dale,
Sorry about the two part question.
So when you said probably not, did you mean no, i probably don't have to use store-bought fire-clay, or no, i probably shouldn't use my left over, dug - myself, cob clay??
 
Dale Hodgins
Posts: 9002
Location: Victoria British Columbia-Canada
666
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I came back and edited while you were typing. Your topic title was different than the one below. It all makes sense now.
 
If you try to please everybody, your progress is limited by the noisiest fool. And this tiny ad:
permaculture bootcamp - learn permaculture through a little hard work
https://permies.com/wiki/bootcamp
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!