[GSBN] SB Lighthouse, CMHC moisture research (was Canadian research into straw bale swimming pools)
lists at sustainablesources.com
Sun Jan 29 19:39:59 CST 2012
I'm also curious about these numbers. What is the percentage of
moisture being compared to? The total weight of what it has absorbed
into? A glass of water, in my book, is 100% moisture content. 100%
means "all water" in this case. Relative humidity of 100% in air means
it can't hold any more for the current temperature, and begins condensing.
So are we comparing against the volume or weight of cellulose? Or what?
Bill "90% of the game is half mental" Christensen
On 1/29/12 4:56 PM, John Straube wrote:
> 300% is easy. A glass of water can have 5000%.
> Live wood regularly as 100-125% wood MC. Straw being lighter could be
> 300%, but I would only ever trust a gravimetric measure, not an
> instrument, to read this.
> Some wood absorbs to 200% and will sink to the bottom of lakes before
> it makes it to the sawmill.
> Dr John Straube, P.Eng.
> On 12-01-29 12:48 PM, martin hammer wrote:
>> Speaking of % moisture content, and at the other end of the spectrum
>> (way beyond, actually), in the CMHC Straw Bale House Moisture
>> Research paper regarding bales in floors, as Habib mentioned, it does
>> say "Some were as wet as 300 per cent moisture content . . .".
>> I love and respect the whole series of CMHC research papers and test
>> reports. But how can anything be 300% moisture content?
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