From: "Sprague, Harold O." <SpragueHO(--nospam--at)bv.com>
Date: Thu, 27 Jan 2000 18:18:03 -0600
Roger's test is the most economical, but if the guys in the pin stripe suits
show up call Olson Engineering http://www.olsonengineering.com/ for some NDT
using impact echo.
> -----Original Message-----
> From: Roger Turk [SMTP:73527.1356(--nospam--at)compuserve.com]
> Sent: Thursday, January 27, 2000 5:02 PM
> To: seaint(--nospam--at)seaint.org; David Hall; Roger Turk
> Subject: Non destructive testing
> Spray water on the wall or wait until after a rain. The cells with grout
> will be wet and stand out like a sore thumb --- the cells without grout
> be dry and match the color of dry block.
> If there is a big argument, drill some 1/4-inch diameter holes where you
> suspect there isn't grout. If there isn't grout in the cell, you will
> your head against the wall after drilling 1-1/4 inches (for 8-inch cmu).
> Hope this helps.
> A. Roger Turk, P.E.(Structural)
> Tucson, Arizona
> David Hall wrote:
> >>Does anyone know of a non-destructive method to determine if grout has
> placed in voids of a recently constructed small masonry building.
> We suspect shenanigans in Texas.<<