RE: [papercreters] Re: Recipe Ratios

Pumice is mined wherever there has been volcanic activity. I do not know where it is available outside of my area but suppose you could go to google and look it up. I did that with perlite, which I will be switching to soon. My pumice supplier has gone out of business but perlite is also mined around here. It is volcanic as well. If you google it you will find a site that shows where it is available. I think there is more of it around than pumice.

Sincerely, Judith
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To: papercreters@yahoogroups.com
From: empiremtn@yahoo.com
Date: Thu, 25 Jun 2009 13:07:56 -0700
Subject: RE: [papercreters] Re: Recipe Ratios

Where does one obtain pumice fines from, and how much do they cost per lb., ton,etc? --- On Thu, 6/25/09, JUDITH WILLIAMS <williams_judith@hotmail.com> wrote: From: JUDITH WILLIAMS <williams_judith@hotmail.com> Subject: RE: [papercreters] Re: Recipe Ratios To: "papercreters papercreters" <papercreters@yahoogroups.com> Date: Thursday, June 25, 2009, 8:45 AM I'm going to take a chance and throw an orange into your bushel of apples. Since I do not have access to a fish scale or any other weighing instrument I will have to just say that I do add a considerable quantity of mineral in the form of pumice - 10 gallons (2 five gallon buckets). I use the pumice fines, about the texture of coarse sand. I am upping the amount and finding no ill effect. The blocks are strong and light. Sincerely, Judith Visit my new website at http://www.papercre tebyjudith. com More info at www.judith-l- williams. com http://www.productc reationlabs. com/cmd.php? af=980303 http://www.productc reationlabs. com/cmd.php? Clk=3034152    If you can't explain it simply, you don't know it well enough.          If we knew what we were doing it wouldn't be called research, would it?                                                                                                                                            Albert Einstein EMAILING FOR THE GREATER GOOD Join me To: papercreters@ yahoogroups. com From: slurryguy@yahoo. com Date: Thu, 25 Jun 2009 13:07:27 +0000 Subject: [papercreters] Re: Recipe Ratios I'm sure Judith is already aware of this, but I'll comment for the benefit of those that may be newer members. I'd guess that Judith uses approx 60-75lbs of dry newspaper per 200 gallon mixer batch of papercrete. Using a half bag of cement would be around 47lbs of cement. If those were the ONLY ingredients Judith was using, her final cured/dried papercrete would likely burn ... or at least continue to smolder... if it were exposed to flame. This is especially true if the slurry does not get compressed. Adding clay or flyash, or other fine mineral content can make up for the cement reduction when it comes to fire retardancy of papercrete. Adding Borax can also retard smolderability, but I've never heard Judith mention borax. I'm all in favor of reducing the amount of cement required in papercrete, but I encourage everyone to add in enough other things to inhibit flamability/ smolderability. If you have the natural clay already in the ground on your site, it sure makes sense to use it. Food for thought. --- In papercreters@ yahoogroups. com, JUDITH WILLIAMS <williams_judith@ ...> wrote: > > > If you have added cement tot he mix it will not break down and mulch into another mix. Cement is actually made stronger by being in water. if you had used clay soil in stead of cement you could re-use the finished stuff in the next batch. > > I use pumice in place of sand in my mix. It is lighter and adds R value, but it may not be available where you are. I just found out the pumice plant near me closed down so I am going to switch to perlite when it's time to get more. I looked it up on google and it seems to be found in more areas than pumice. They are both volcanic rocks but perlite is actually glass. You can get it in the raw state when it looks like crushed rock or in the processed state like what you see in plant pots. > > I don't use much cement in my mix. I started out with 2 bags per 200 gal mix but am now down to 1/2 bag or less. The blocks are every bit as strong but so much lighter. I recently moved a bunch of old blocks and was astounded at how heavy my original blocks were. My whole motive for using this stuff is to keep things light and manageable for myself, not being a bodybuilder or anything close to it. > > Sincerely, Judith > Visit my new website at http://www.papercre tebyjudith. com >

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