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Re: Fiber Reinforced Masonry Grout

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If you check ICC Evaluation Reports for fiber reinforced concrete, you will find that fiber reinforcement is not allowed to replace "structural reinforcement."  Why would it be any different for fiber reinforced grout. Sounds kind of "dicey" to me.
Bill Cain, S.E.
Berkeley CA
-----Original Message-----
From: Christopher Haffner <chaffner(--nospam--at)>
To: seaint(--nospam--at)
Sent: Wed, 4 Jan 2006 11:01:29 -0800
Subject: Fiber Reinforced Masonry Grout

Two questions:

I have a client that has requested the use of fiber reinforced grout to
reinforce an un-reinforced hollow core masonry wall in lieu of using normal
grout and mild steel reinforcing.  Has anyone used this type of grout and if
so what was your experience?  

We are reinforcing an existing un-reinforced masonry concrete block wall
(not normal CMU block but somewhat similar characteristics) building and
need to get some reinforcing inside the voids and grout the reinforced cells

Does anyone have a suggestion (trick) on how to physically get mild
reinforcing bars inside the 7.5"x12" voids (yes - they are a weird size in a
weird system) prior to grouting?  This is why the fiber grout is being

Haffner Consulting Engineering
Office & Fax:  541-478-3052

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