1. Crack Monitor

• The Avongard Crack Monitor consists of two overlapping acrylic plates. One plate is white with a black millimeter grid, while the other is transparent with red crosshairs centered over the grid.
• Once the Crack Monitor is in position across a crack, the crosshairs shift vertically or horizontally on the grid if movement occurs,so that anyone can easily see and track crack movement .
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2. Abatron 5 minute Epoxy System

• Abatron 5-Minute Epoxy System features a one-ounce, dual syringe of epoxy gel which is sufficient to install an average of 10 Crack Monitors.
• More Epoxy will be needed for installation on rough brick or masonry surfaces than on smooth concrete.
• Material Safety Sheets: HTML version / PDF version
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3. Thomas J. Glover's "Engineers Pocket Reference

• This 496 page volume contains engineering tables, conversion charts, math formulas and much more, making it a must have for every engineer, manager, student or traveler.
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