1.  Composition and Materials
   The Wilson Anchor Bolt Sleeve is manufactured of high impact plastic.  It is non-rusting, non-conductive and lightweight.  Single unit construction provides for reduction in installation labor because no welding, threading or cleaning is required.  The configuration is such that the grout and concrete “lock” it in place, providing greater pullout strength than with straight pipes.
2. Technical Data
   See Table 1 for material test data.  Each Sleeve is approximately twice the bolt diameter with a depth of 8 bolt diameters, minimum. Tests by a state Department of Transportation laboratory indicates that the Wilson Anchor Bolt Sleeve provided greater pullout strength than the regular grout pocket.

The grout pocket was formed in a concrete mass and the sleeve of the same size was cast into the mass.  After curing the concrete, #5 reinforcing bars were set in each pocket, using expanding grout. When cured, both bars were given a tensile load.  The standard pocket failed when the bar with the grout attached pulled out.  The Wilson Anchor Bolt Sleeve retained the grout and failure occurred around the bar. The sleeve remained intact.

When used as a sleeve for anchor bolts the product in in an in-place form and not considered a structural member.

The bottom of the sleeve is passed over the top of the bolt until the threaded portion engages the self-threading top of the sleeve.  The sleeve is turned until the proper projection is obtained.  The entire assembly is cast into the concrete, with the top of the sleeve at foundation level.  When the anchor bolt is ready to adjust, the top of the sleeve is cut off, the top is discarded.  The bolt may now be adjusted within the sleeve.  Expansion or non-shrinking grout is cast into the sleeve around the bolt when equipment is set.  Other applications are done in a similar fashion.