[Cob] RE: Coblist Digest, Vol 2, Issue 72
Ian Marcuse
dtebb at alternatives.com
Tue Aug 17 23:56:09 CDT 2004
Hi All,
I have a little cob guesthouse in Vancouver,
Canada. Cobbing visitors are welcome to stay
there. No charge.
Ian Marcuse
www.alternatives.com/cob-building
> Hi!
>
> I'm wondering who else is going to BC. What are people doing about
> beds and overnights? Are people camping, if so where?
>
> Also I read Dulane's request and if you still need help I don't have
> any experience buts lots of time. I live near Olympia.
> >From: coblist-request at deatech.com
> >Reply-To: coblist at deatech.com
> >To: coblist at deatech.com
> >Subject: Coblist Digest, Vol 2, Issue 72
> >Date: Tue, 17 Aug 2004 07:34:07 -0700
> >
> >Send Coblist mailing list submissions to
> > coblist at deatech.com
> >
> >To subscribe or unsubscribe via the World Wide Web, visit
> > http://www.deatech.com/mailman/listinfo/coblist
> >or, via email, send a message with subject or body 'help' to
> > coblist-request at deatech.com
> >
> >You can reach the person managing the list at
> > coblist-owner at deatech.com
> >
> >When replying, please edit your Subject line so it is more specific
> >than "Re: Contents of Coblist digest..."
> >
> >
> >Today's Topics:
> >
> > 1. Re: anybody need free labor? (who_dat at ephytol.com)
> > 2. Re: anybody need free labor? (Dorothy Bothne)
> > 3. Seattle Cobbing Project (Dulane)
> > 4. RE: anybody need free labor? (Abe Connally)
> > 5. Re: Cobbing in N. Seattle (Dulane)
> > 6. Stone in cob (Brent Flaco Wilson)
> > 7. Re: Clay&Bool- Stone in cob (dirtcheapbuilder-Charmaine
> Taylor)
> > 8. Re: Clay&Bool- Stone in cob (Joseph R Dupont)
> > 9. RE: clay& bool (Mary Lou McFarland)
> > 10. RE: Stone in cob (Amanda Peck)
> > 11. RE: RE: Stone in cob (Bonnie Morse)
> > 12. Re: RE: Stone in cob (otherfish)
> > 13. Re: RE: Stone in cob (phil)
> >
> >
> >---------------------------------------------------------------------
> -
> >
> >Message: 1
> >Date: Fri, 13 Aug 2004 17:31:12 -0500
> >From: <who_dat at ephytol.com>
> >Subject: Re: [Cob] anybody need free labor?
> >To: <abe at abeconnally.com>, <coblist at deatech.com>
> >Message-ID: <001d01c48185$3efd07e0$ed18fea9 at red>
> >Content-Type: text/plain; charset="iso-8859-1"
> >
> >Hello all! (first post here =)
> >
> >Abe do you have planned dates you intend to start cobbing? I live in
> the
> >Dallas area but would gladly make the drive to help and learn,
> especially
> >since I have yet to get my feet muddy ;)
> >
> >Eric
> >
> >
> >----- Original Message -----
> >From: "Abe Connally" <abe at abeconnally.com>
> >To: <coblist at deatech.com>
> >Sent: Friday, August 13, 2004 3:05 PM
> >Subject: RE: [Cob] anybody need free labor?
> >
> >
> > > We are building a cob house and would love some newbies to come
> out and
> >learn!
> > > We are located in the Big Bend Region of Texas.
> > >
> > > If anyone wants to cob, we have plenty!!!
> > >
> > > Abe
> > >
> >
> >
> >
> >
> >
> >------------------------------
> >
> >Message: 2
> >Date: Fri, 13 Aug 2004 16:51:40 -0700 (PDT)
> >From: Dorothy Bothne <dbothne54 at yahoo.com>
> >Subject: Re: [Cob] anybody need free labor?
> >To: coblist at deatech.com
> >Message-ID: <20040813235140.73939.qmail at web41808.mail.yahoo.com>
> >Content-Type: text/plain; charset=us-ascii
> >
> >Eric,
> >we're a couple of hours south of you (just north of
> >austin) and we're cobbing every weekend. we always
> >welcome the help too.
> >Dorothy
> >
> >
> >--- who_dat at ephytol.com wrote:
> >
> > > Hello all! (first post here =)
> > >
> > > Abe do you have planned dates you intend to start
> > > cobbing? I live in the
> > > Dallas area but would gladly make the drive to help
> > > and learn, especially
> > > since I have yet to get my feet muddy ;)
> > >
> > > Eric
> > >
> > >
> >
> >
> >
> >__________________________________
> >Do you Yahoo!?
> >Yahoo! Mail - 50x more storage than other providers!
> >http://promotions.yahoo.com/new_mail
> >
> >
> >
> >------------------------------
> >
> >Message: 3
> >Date: Sat, 14 Aug 2004 10:32:26 -0700
> >From: "Dulane" <silkworm at spiderhollow.com>
> >Subject: [Cob] Seattle Cobbing Project
> >To: "Cob" <coblist at deatech.com>
> >Message-ID: <003301c48224$ab20bee0$6501a8c0 at attbi.com>
> >Content-Type: text/plain; charset="iso-8859-1"
> >
> >Hello,
> >I have a small garden project and am looking for help in the north
> Seattle
> >area. I will pay $10 per hour for several days work. I am hoping for
> someone
> >with experience. There is room here for camping if that helps.
> >Dulane
> >
> >There are solutions to the major problems of our time, some of them
> even
> >simple. But they require a radical shift in our perceptions, our
> thinking,
> >and our values.
> >
> >
> >
> >
> >------------------------------
> >
> >Message: 4
> >Date: Sun, 15 Aug 2004 11:25:07 -0500
> >From: "Abe Connally" <abe at abeconnally.com>
> >Subject: RE: [Cob] anybody need free labor?
> >To: <who_dat at ephytol.com>, "Coblist" <coblist at deatech.com>
> >Message-ID: <MBBBIFEBNJKOPBJIMPHKCEAAELAA.abe at abeconnally.com>
> >Content-Type: text/plain; charset="iso-8859-1"
> >
> >Eric,
> >
> >We are cobbing right now. We should be cobbing through October, and
> then we
> >will be cobbing again in March through June of next year. Come on
> down anytime!
> >We have plenty of cob!
> >
> >Abe
> >
> >-----Original Message-----
> >From: who_dat at ephytol.com [mailto:who_dat at ephytol.com]
> >Sent: Friday, August 13, 2004 5:31 PM
> >To: abe at abeconnally.com; coblist at deatech.com
> >Subject: Re: [Cob] anybody need free labor?
> >
> >
> >Hello all! (first post here =)
> >
> >Abe do you have planned dates you intend to start cobbing? I live in
> the
> >Dallas area but would gladly make the drive to help and learn,
> especially
> >since I have yet to get my feet muddy ;)
> >
> >Eric
> >
> >
> >----- Original Message -----
> >From: "Abe Connally" <abe at abeconnally.com>
> >To: <coblist at deatech.com>
> >Sent: Friday, August 13, 2004 3:05 PM
> >Subject: RE: [Cob] anybody need free labor?
> >
> >
> > > We are building a cob house and would love some newbies to come
> out and
> >learn!
> > > We are located in the Big Bend Region of Texas.
> > >
> > > If anyone wants to cob, we have plenty!!!
> > >
> > > Abe
> > >
> >
> >
> >
> >
> >---
> >
> >Checked by AVG anti-virus system (http://www.grisoft.com).
> >Version: 6.0.548 / Virus Database: 341 - Release Date: 12/5/2003
> >
> >
> >
> >
> >------------------------------
> >
> >Message: 5
> >Date: Sun, 15 Aug 2004 18:50:25 -0700
> >From: "Dulane" <silkworm at spiderhollow.com>
> >Subject: [Cob] Re: Cobbing in N. Seattle
> >To: "Cob" <coblist at deatech.com>
> >Message-ID: <003801c48333$665f2a20$6501a8c0 at attbi.com>
> >Content-Type: text/plain; charset="iso-8859-1"
> >
> >I've had a wonderful response to my request for help. I will respond
> to
> >folks right away. I probably will not need anyone else, judging by
> the
> >emails already received.
> >This is a great email forum. Active and full of good tips and
> knowledge.
> >Thanks,
> >Dulane
> >
> >There are solutions to the major problems of our time, some of them
> even
> >simple. But they require a radical shift in our perceptions, our
> thinking,
> >and our values.
> >
> >
> >
> >
> >------------------------------
> >
> >Message: 6
> >Date: Mon, 16 Aug 2004 19:41:39 +0000
> >From: "Brent Flaco Wilson" <realm_fitness at hotmail.com>
> >Subject: [Cob] Stone in cob
> >To: ap615 at hotmail.com, coblist.to.theq at xoxy.net, coblist at deatech.com
> >Message-ID: <BAY9-F30CdUxX42U53j00012fa5 at hotmail.com>
> >Content-Type: text/plain; format=flowed
> >
> >Has anyone ever built a home using stones with cob as mortar? Given
> you
> >have a rubble trench footing. Also interested in "plastering a cob
> home on
> >the south facing sidewith stone, perhaps like veneer stones, flag
> stones, or
> >mayb embedding smooth flat stones gatherd from the coast. The stones
> will
> >be great for insulation-radiation purposes. I guess one could do a
> whole
> >room on the interior that way with stones, coral, shells, and
> starfish for
> >the bathroom beach effect. I have seen cob benches in portland with
> mosaic
> >work so this idea of stones seems reasonable?
> >
> >
> > >From: "Amanda Peck" <ap615 at hotmail.com>
> > >To: coblist.to.theq at xoxy.net, coblist at deatech.com
> > >Subject: RE: [Cob] Re: Cob in British Columbia
> > >Date: Thu, 12 Aug 2004 13:31:04 -0500
> > >
> > >
> > >As far as I can tell, the big thing with cob (among many other
> styles of
> > >building, including conventional) is moisture control. You don't
> want
> > >hydraulic pressure on it--or its foundation, let alone streams of
> water
> > >washing down the hill onto it. Cob tempers indoor humidity pretty
> well,
> > >but does it do well in the rain forest (tropical or
> temperate)? Ask
> > >somebody, keep your eyes open. (how humid is the area with cob
> houses in
> > >New Zealand? how do those old old old cob houses in Britain
> do) You could
> > >report back.
> > >
> > >If you can keep moisture out/off of it, and are able to put a
> really solid
> > >base down, I'd think that most anything would take an earthen
> floor. Not
> > >for your second story condo, especially if it was the one in
> Nashville TN
> > >that was rumored to sway before the brick facing was put up.
> > >
> > >Actually, maybe not for second stories period. I'm not planning
> it.
> > >
> > >............
> > >Patrick and Chris wrote:
> > >
> > >----------
> > >Thanks to all (especially Ian for the enjoyable phone
> conversation!) for
> > >the links, information, and inspiration.
> > >
> > >We're packing to head up into BC shortly, so will be in pondering
> mode for
> > >a bit. A couple of things I'll be pondering (and would welcome
> comment
> > >upon).
> > >- Earthen floors for thermal mass in a more conventional structure
> > >- Covering strawbales with cob (does the cob share the
> load-bearing?)
> > >- Has anyone ever considered interior walls of cob in a
> conventional
> > >structure (if cob is not feasible wherever we end up)?
> > >
> > >I imagine we'll be in brainstorming mode for some time. Thanks for
> your
> > >help and thoughts - this list is fascinating!
> > >
> > >Cheers!
> > > - Patrick & Chris
> > >_______________________________________________
> > >Coblist mailing list
> > >Coblist at deatech.com
> > >http://www.deatech.com/mailman/listinfo/coblist
> > >
> > >_________________________________________________________________
> > >Dont just search. Find. Check out the new MSN Search!
> > >http://search.msn.click-url.com/go/onm00200636ave/direct/01/
> > >
> > >
> > >_______________________________________________
> > >Coblist mailing list
> > >Coblist at deatech.com
> > >http://www.deatech.com/mailman/listinfo/coblist
> >
> >_________________________________________________________________
> >On the road to retirement? Check out MSN Life Events for advice on
> how to
> >get there! http://lifeevents.msn.com/category.aspx?cid=Retirement
> >
> >
> >
> >
> >------------------------------
> >
> >Message: 7
> >Date: Mon, 16 Aug 2004 13:03:54 -0700
> >From: dirtcheapbuilder-Charmaine Taylor <tms at northcoast.com>
> >Subject: Re: [Cob] Clay&Bool- Stone in cob
> >To: "Brent Flaco Wilson" <realm_fitness at hotmail.com>
> >Cc: coblist at deatech.com, coblist.to.theq at xoxy.net
> >Message-ID: <66CC2C82-EFBF-11D8-8EBB-000D93C26BB0 at northcoast.com>
> >Content-Type: text/plain; charset=US-ASCII; format=flowed
> >
> >This is an old Scottish method called "Clay & Bool" where stones
> are
> >embedded in a clay-cob mix.
> >It will be very very rustic, and there may be air gaps after some
> >shrinkage...but you could try it.
> >
> >below is an image of a riverstone and clay wall done in 1800's in
> >Placerville CA..it is now a trendy art cafe', and they put in a brick
> >surround, with an entry door.
> >
> >I can srcatch the clay out with a fingernail but it is very durable
> as
> >evidenced by it's current use the temp is very comfortable inside,
> >cool, whern it is 105 deg, outside..
> >
> >http://www.northcoast.com/~tms/PLACER~1.JPG
> >
> > > Charmaine Taylor Publishing books at dirtcheapbuilder.com
> >PO Box 375 Cutten CA 95534 USA -- 707-441-1632
> >www.dirtcheapbuilder.com & www.papercrete.com
> >NEW! dirtcheapbuilder CD Info- 4,000+ Pdf pages- $7.
> >
> >
> >On Aug 16, 2004, at 12:41 PM, Brent Flaco Wilson wrote:
> >
> > > Has anyone ever built a home using stones with cob as
> mortar? Given
> > > you have a rubble trench footing. Also interested in "plastering
> a
> > > cob home on the south facing sidewith stone, perhaps like veneer
> > > stones, flag stones, or mayb embedding smooth flat stones gatherd
> from
> > > the coast. The stones will be great for insulation-radiation
> > > purposes. I guess one could do a whole room on the interior that
> way
> > > with stones, coral, shells, and starfish for the bathroom beach
> > > effect. I have seen cob benches in portland with mosaic work so
> this
> > > idea of stones seems reasonable?
> > >
> >
> >
> >
> >
> >------------------------------
> >
> >Message: 8
> >Date: Mon, 16 Aug 2004 16:09:47 -0400
> >From: Joseph R Dupont <joedupont at juno.com>
> >Subject: Re: [Cob] Clay&Bool- Stone in cob
> >To: tms at northcoast.com
> >Cc: realm_fitness at hotmail.com, coblist at deatech.com,
> > coblist.to.theq at xoxy.net
> >Message-ID: <20040816.160956.-1991625.8.joedupont at juno.com>
> >Content-Type: text/plain; charset=us-ascii
> >
> >has anyone mixed in paperpulp to COB as a reinforcer?
> >On Mon, 16 Aug 2004 13:03:54 -0700 dirtcheapbuilder-Charmaine Taylor
> ><tms at northcoast.com> writes:
> > > This is an old Scottish method called "Clay & Bool" where
> stones
> > > are
> > > embedded in a clay-cob mix.
> > > It will be very very rustic, and there may be air gaps after some
> > > shrinkage...but you could try it.
> > >
> > > below is an image of a riverstone and clay wall done in 1800's in
> > > Placerville CA..it is now a trendy art cafe', and they put in a
> > > brick
> > > surround, with an entry door.
> > >
> > > I can srcatch the clay out with a fingernail but it is very
> durable
> > > as
> > > evidenced by it's current use the temp is very comfortable inside,
> > > cool, whern it is 105 deg, outside..
> > >
> > > http://www.northcoast.com/~tms/PLACER~1.JPG
> > >
> > > > Charmaine Taylor Publishing books at dirtcheapbuilder.com
> > > PO Box 375 Cutten CA 95534 USA -- 707-441-1632
> > > www.dirtcheapbuilder.com & www.papercrete.com
> > > NEW! dirtcheapbuilder CD Info- 4,000+ Pdf pages- $7.
> > >
> > >
> > > On Aug 16, 2004, at 12:41 PM, Brent Flaco Wilson wrote:
> > >
> > > > Has anyone ever built a home using stones with cob as mortar?
> > > Given
> > > > you have a rubble trench footing. Also interested in
> "plastering
> > > a
> > > > cob home on the south facing sidewith stone, perhaps like veneer
> > > > stones, flag stones, or mayb embedding smooth flat stones
> gatherd
> > > from
> > > > the coast. The stones will be great for insulation-radiation
> > > > purposes. I guess one could do a whole room on the interior
> that
> > > way
> > > > with stones, coral, shells, and starfish for the bathroom beach
> > > > effect. I have seen cob benches in portland with mosaic work so
> > > this
> > > > idea of stones seems reasonable?
> > > >
> > >
> > >
> > > _______________________________________________
> > > Coblist mailing list
> > > Coblist at deatech.com
> > > http://www.deatech.com/mailman/listinfo/coblist
> > >
> > >
> >
> >
> >
> >------------------------------
> >
> >Message: 9
> >Date: Mon, 16 Aug 2004 16:03:14 -0500
> >From: "Mary Lou McFarland" <louiethefifth at hotmail.com>
> >Subject: [Cob] RE: clay& bool
> >To: Coblist at deatech.com
> >Message-ID: <BAY18-F10mIz0ucTxhH00041f48 at hotmail.com>
> >Content-Type: text/plain; format=flowed
> >
> >When using this method ,is there any effort to plaster over the
> mortar area?
> >or with so little cob showing is any protection redundent? IAre the
> stones
> >embedded during construction or is this added later as a siding? In
> the
> >area where the building sits ( from your attachment) is the
> weather severe
> >with driving winds and rain or is it just a temporate climate?
> >
> >_________________________________________________________________
> >Express yourself instantly with MSN Messenger! Download today - it's
> FREE!
> >http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/
> >
> >
> >
> >
> >------------------------------
> >
> >Message: 10
> >Date: Mon, 16 Aug 2004 17:26:48 -0500
> >From: "Amanda Peck" <ap615 at hotmail.com>
> >Subject: [Cob] RE: Stone in cob
> >To: coblist at deatech.com
> >Message-ID: <BAY8-F19Anv2Ew2wDeW000070af at hotmail.com>
> >Content-Type: text/plain; format=flowed
> >
> >
> >Probably.
> >
> >For sure Rob Roy and Ianto Evans did some cordwood masonry with cob
> as
> >mortar.
> >
> >A propos of not a whole lot, I've been reading a mystery story
> involving an
> >earthquake. Author gives lots of information about earthquakes. Her
> point
> >is that the sizes and shapes of particles in mortar are what is
> important,
> >not all the same, and for sure not all rounded. (Sarah Andrews,
> Fault Line)
> >..................
> >Brent Flaco Wilson writes:
> >
> >Has anyone ever built a home using stones with cob as mortar? Given
> you
> >have a rubble trench footing. Also interested in "plastering a cob
> home on
> >the south facing sidewith stone, perhaps like veneer stones, flag
> stones, or
> >mayb embedding smooth flat stones gatherd from the coast. The stones
> will
> >be great for insulation-radiation purposes. I guess one could do a
> whole
> >room on the interior that way with stones, coral, shells, and
> starfish for
> >the bathroom beach effect. I have seen cob benches in portland with
> mosaic
> >work so this idea of stones seems reasonable?
> >
> >_________________________________________________________________
> >On the road to retirement? Check out MSN Life Events for advice on
> how to
> >get there! http://lifeevents.msn.com/category.aspx?cid=Retirement
> >
> >
> >
> >
> >------------------------------
> >
> >Message: 11
> >Date: Mon, 16 Aug 2004 15:51:59 -0700
> >From: "Bonnie Morse" <bonnie.morse at content-mgmt.com>
> >Subject: RE: [Cob] RE: Stone in cob
> >To: <coblist at deatech.com>
> >Message-ID:
> > <NOEJLLELMNNFELDCMLHKCEHCCGAA.bonnie.morse at content-mgmt.com>
> >Content-Type: text/plain; charset="iso-8859-1"
> >
> >My old Materials Science book from college said that gravel with
> sharp edges
> >makes stronger concrete than gravel with smooth edges. I guess the
> same
> >would apply to sand particles in mortar or cob.
> >
> >Bonnie in OR
> >
> >-----Original Message-----
> >From: coblist-bounces at deatech.com
> [mailto:coblist-bounces at deatech.com]On
> >Behalf Of Amanda Peck
> >
> ><snipped>
> >
> >A propos of not a whole lot, I've been reading a mystery story
> involving an
> >earthquake. Author gives lots of information about earthquakes. Her
> point
> >is that the sizes and shapes of particles in mortar are what is
> important,
> >not all the same, and for sure not all rounded. (Sarah Andrews,
> Fault Line)
> >
> >
> >
> >
> >------------------------------
> >
> >Message: 12
> >Date: Mon, 16 Aug 2004 17:20:41 -0700
> >From: otherfish <otherfish at comcast.net>
> >Subject: Re: [Cob] RE: Stone in cob
> >To: Bonnie Morse <bonnie.morse at content-mgmt.com>,
> > <coblist at deatech.com>
> >Message-ID: <BD469D68.552C%otherfish at comcast.net>
> >Content-Type: text/plain; charset="US-ASCII"
> >
> >Cob gets it's strength from being built massivly as COB, not
> something else.
> >Cob bonds well with cob, but poorly with other materials. Cob as
> mortar
> >will do little more than simply fill the spaces between whatever you
> are
> >mortating. The compressice strength of cob is low comparred to
> cordwood or
> >stone. Using cob as a mortar in a stone or cordwood construction
> will make
> >the mortar the weakest link in the wall system.
> >Not something I'd do.
> >If you want a mortar that doesn't use portland cement, go for lime
> sand
> >mortar. It haS a long history of successful use as mortar.
> >
> >john fordice
> >
> >
> >on 8/16/04 3:51 PM, Bonnie Morse at bonnie.morse at content-mgmt.com
> wrote:
> >
> > > My old Materials Science book from college said that gravel with
> sharp edges
> > > makes stronger concrete than gravel with smooth edges. I guess
> the same
> > > would apply to sand particles in mortar or cob.
> > >
> > > Bonnie in OR
> > >
> > > -----Original Message-----
> > > From: coblist-bounces at deatech.com
> [mailto:coblist-bounces at deatech.com]On
> > > Behalf Of Amanda Peck
> > >
> > > <snipped>
> > >
> > > A propos of not a whole lot, I've been reading a mystery story
> involving an
> > > earthquake. Author gives lots of information about
> earthquakes. Her point
> > > is that the sizes and shapes of particles in mortar are what is
> important,
> > > not all the same, and for sure not all rounded. (Sarah Andrews,
> Fault Line)
> > >
> > >
> > > _______________________________________________
> > > Coblist mailing list
> > > Coblist at deatech.com
> > > http://www.deatech.com/mailman/listinfo/coblist
> >
> >
> >
> >
> >------------------------------
> >
> >Message: 13
> >Date: Tue, 17 Aug 2004 10:32:59 -0400 (EDT)
> >From: "phil" <phawn1 at excite.com>
> >Subject: Re: [Cob] RE: Stone in cob
> >To: otherfish at comcast.net, bonnie.morse at content-mgmt.com,
> > coblist at deatech.com
> >Message-ID: <20040817143259.66C3F3DF3 at xprdmailfe12.nwk.excite.com>
> >Content-Type: text/plain; charset="us-ascii"
> >
> >
> >
> >We are currently working on a cob-cordwood home here in NC. We have
> added about 5% lime to the cob for extra strength and short of taking
> a sledge hammer to the wall (I dare anyone to do that to their home)
> it has bonded well witht he wood. VERY hard and quick setting as a
> mortar. We also haven't had a lot of shrinkage. Time will tell as to
> durabilty.
> >
> >Phil Hawn, President
> >The North Carolina Natural Building Coalition
> >http://naturalbuilder.org
> >cob, strawbale, cordwood and other sustainable earthbuilding
> techniques
> >
> > --- On Mon 08/16, otherfish < otherfish at comcast.net > wrote:
> >From: otherfish [mailto: otherfish at comcast.net]
> >To: bonnie.morse at content-mgmt.com, coblist at deatech.com
> >Date: Mon, 16 Aug 2004 17:20:41 -0700
> >Subject: Re: [Cob] RE: Stone in cob
> >
> >Cob gets it's strength from being built massivly as COB, not
> something else.<br>Cob bonds well with cob, but poorly with other
> materials. Cob as mortar<br>will do little more than simply fill the
> spaces between whatever you are<br>mortating. The compressice
> strength of cob is low comparred to cordwood or<br>stone. Using cob
> as a mortar in a stone or cordwood construction will make<br>the
> mortar the weakest link in the wall system.<br>Not something I'd
> do.<br>If you want a mortar that doesn't use portland cement, go for
> lime sand<br>mortar. It haS a long history of successful use as
> mortar.<br><br>john fordice<br><br><br>on 8/16/04 3:51 PM, Bonnie
> Morse at bonnie.morse at content-mgmt.com wrote:<br><br>> My old
> Materials Science book from college said that gravel with sharp
> edges<br>> makes stronger concrete than gravel with smooth edges. I
> guess the same<br>> would apply to sand particles in mortar or
> cob.<br>> <br>> Bonnie in OR<br>> <br>> -----Original
> Message-----<br>> From: coblist-bounces at deatech.com
> [mailto:coblist-bounces at deatech.com]On<br>> Behalf Of Amanda Peck<br>>
> <br>> <snipped><br>> <br>> A propos of not a whole lot, I've been
> reading a mystery story involving an<br>> earthquake. Author gives
> lots of information about earthquakes. Her point<br>> is that the
> sizes and shapes of particles in mortar are what is important,<br>>
> not all the same, and for sure not all rounded. (Sarah Andrews, Fault
> Line)<br>> <br>> <br>>
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> >End of Coblist Digest, Vol 2, Issue 72
> >**************************************
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>References
>
> 1. http://g.msn.com/8HMAESUS/2755??PS=47575
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