With that low max temperature I would use very little to zero cement in the blocks, a little in the mortar, and then plaster on a finish coat with a fairly large amount of cement to weatherproof and toughen the walls. That way you get maximum insulation value.
On 6/30/2012 10:24 AM, trendawareness wrote:
Is your application going to expose the pc directly to flame?<<No flame at all. My large blocks will form an insulating shell for a thermophilic (hot compost) heater with a max temperature of about 150F. It will have an inner chamber made of ferrocrete that will contain a rainforest-like environment. I live in an area which has twice as many heating days as cooling days and my goal is to make an inexpensive supplemental heating unit using 90% or more recycled materials which then will consume its own weight in waste biomass every two weeks. That's how I "discovered" papercrete. Rather than buying lots of styrofoam I was researching how to make insulation out of newspaper and came across Livinginpaper, Eve's Garden, and the other sites. Been a fan ever since. Thanks Dan ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/papercreters/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/papercreters/join (Yahoo! ID required) <*> To change settings via email: papercreters-digest@yahoogroups.com papercreters-fullfeatured@yahoogroups.com <*> To unsubscribe from this group, send an email to: papercreters-unsubscribe@yahoogroups.com <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2180 / Virus Database: 2437/5101 - Release Date: 06/29/12
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