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RE: seaoc

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Title: FW: seaoc
The FL and LL method for floor flatness as shown in ACI was "invented" by the FACE Company.  I believe they sale the laser equipment to measure slabs.  In my area, Central Alabama, this type of testing is typically done by the materials people.  Most of them already own the equipment and are trained to use it.
Hope this helps
John Jones
Pell City, AL
-----Original Message-----
From: Robert Rollo [mailto:rrollo(--nospam--at)]
Sent: Tuesday, September 01, 1998 1:45 PM
To: 'seaint(--nospam--at)'
Subject: FW: seaoc

we have a client who desires to evaluate the flatness of an existing concrete slab on grade floor and to measure any variations periodically

i have seen reports that provided "micro-elevation" study that provides a contour type mapping 

for any evaluation it seems the tolerance should be tighter than conventional survey practice

i am looking for information and equipment required regarding how to conduct a slab elevation study with close tolerances. I am of the understanding that a data collector is available that meets this description.