Perpendicularity Verification Devices

The Perpendicularity Verification Device (PVD) is a new tool to verify the proper alignment of concrete cylinders during compressive strength testing. The latest revisions to ASTM C39/39M require verification that alignment is within ±0.5° of vertical for each specimen tested when Unbonded Caps are used. After specimen, loading has commenced, but before reaching 10% of the total load, the PVD is held on the bottom machine platen and manually positioned against the cylinder. The included Gap Measurement Tool is used to check the gap between the device and the cylinder. If the Tool will not pass through the gap, the test can continue. The PVD's feature unique designs for use with 4x8in (102x203mm) or 6x12in (152x305mm) cylinders and are simple, lightweight, and easy to use. A recess cut at the bottom eliminates interference from Retaining Rings and spacers during use. Sturdy Machined aluminum construction.

Features:

• Sturdy, precision machined aluminum
• Notched bases prevent contact with Retaining Rings and Spacers
• Meets new ASTM C39 requirements

Included Items:

• Perpendicularity Verification Device (PVD) for 4in or 6in concrete cylinders
• PVD Gap Measurement Tool