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Re: Slump Block

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Thor,

I haven't got the project yet, and not sure I want it since it is an
addition to an existing structure, and not in good shape to boot.

Actually, I've been most of 20 yrs. in the west, it's just that except for
the last couple of months has been in the northern Rocky Mountains and not
in the desert southwest.

I guess I will have to do some more research and find some manufacturers
etc. to get some more specifics.

Thanks,

Joe


----- Original Message ----- 
From: "Thor Matteson, SE" <matteson(--nospam--at)yosemite.net>
To: "SEAINT" <seaint(--nospam--at)seaint.org>
Sent: Friday, April 30, 2004 9:45 PM
Subject: Slump Block


> Joe,
>
> I haven't dealt with slump block (or "slumpstone") for many years--here's
> what I remember.
>
> They are concrete masonry units intended to mimic adobe.  This could
explain
> why you didn't see them until moving "out west".
>
> The following is what my previous employer beat into me, so this is
> second-hand expertise.
>
> The blocks are manufactured by casting a taller-than-normal blocks,
ejecting
> them from the mold, and squishing (technical term) them down to the
modular
> height--usually 3-5/8", as 8-inch high blocks wouldn't look much like
adobe
> bricks.
>
> The squishing does two things:  It makes the block more dense than
standard
> blocks, and it makes the cavities smaller and more irregular.
>
> My previous employer required that all slumpstone units be bond-beam units
> to facilitate grout flow throughout the smaller, more irregular cavities.
> He also specified slightly drier grout, since the more dense masonry would
> not absorb as much excess water from the grout.
>
> Essentially you're dealing with CMU construction, just not smooth
surfaces.
>
> Thor
> www.shearwalls.com
>
>
>
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