Abstract: A shim assembly comprises a first shim piece having a generally planar body and a plurality of spaced apart projections extending upwardly therefrom. A second shim piece has a generally planar body and a plurality of spaced recesses. The recesses are slightly larger than the projections and spaced apart similar to the spacing of the projections to receive the projections and maintain the first and second shim pieces in an assembled condition.

Abstract: Broadly, there is disclosed herein in accordance with a first aspect of the invention a safety system for use with linearly arranged reinforcement bars. The safety system includes a plurality of safety covers and a plurality of adapters. Each safety cover includes a cover plate and a collar operatively associated with and extending downwardly from the cover plate for mounting to an upper end of a reinforcement bar. Each adapter has a center section and opposite upwardly turned side sections defining a channel. The center section is adapted to removably receive one of the safety covers to secure the adapter to the reinforcement bar. The channel receives an elongate body extending between two or more of the adapters on linearly arranged reinforcement bars.

Abstract: A safety system is provided for use with a concrete reinforcing bar or rebar. The system includes a cover having a cover base plate with a first, force-receiving surface and a second surface and a collar having a collar wall attached to the second surface of the cover base plate and having an inner surface defining a bore. A mechanism is attached to the collar wall for maintaining the system in an operative position relative to an end of a rebar. A plate is disposed in the bore spaced from the second surface of the cover to define an interior space and having an engagement surface abuttable against the rebar end. One of the plate and the collar is deformable to resist movement of the rebar end through the interior space and the cover.

Abstract: A protective assembly for an exposed end of a reinforcing bar is provided. The protective assembly includes a cover and an insert that is movable relative to the cover. First structure cooperates between the cover and an exposed end of a reinforcing bar for maintaining the cover in an operative position wherein the insert is captive between the cover and an exposed end of a reinforcing bar on which the cover is maintained.

Abstract: A protective assembly for an exposed end of a reinforcing bar is provided. The protective assembly includes a cover and an insert that is movable relative to the cover. First structure cooperates between the cover and an exposed end of a reinforcing bar for maintaining the cover in an operative position wherein the insert is captive between the cover and an exposed end of a reinforcing bar on which the cover is maintained.

Abstract: A concrete column form includes a plurality of half-round sections secured together by a plurality of bolts. Each section comprises a semi-cylindrical wall having a top edge, a bottom edge and opposite side edges. A semi-circular top flange is connected to and extends radially outwardly from the top edge, including a semi-circular raised ridge extending upwardly therefrom and a plurality of apertures therethrough. A semi-circular bottom flange is connected to and extends radially outwardly from the bottom edge and includes a semicircular indented notch opening downwardly therefrom for receiving the raised ridge from the top flange of a subjacent section for aligning the same and a plurality of apertures therethrough circumferentially aligned with the top flange apertures for receiving the bolts to fasten the same to the top flange of a subjacent section.

Abstract: A plastic slump cone includes a unitary frusto-conical mold formed of a synthetic resin defining an open base at one axial end and a smaller open top at an opposite axial end for receiving a sample of freshly mixed concrete, in use. A pair of foot pieces formed of synthetic resin are secured to the mold and extend radially outwardly therefrom at the base on opposite sides thereof for holding the mold firmly in place while filling with a sample of concrete. A pair of handles formed of synthetic resin are secured to the mold and extend radially outwardly therefrom intermediate the base and the top and opposite sides thereof for lifting the mold when filled with a sample of concrete.

Abstract: A packaging assembly is provided for facilitating shipment and use of articles contained therein. The packaging assembly includes a pair of identical cartons, one positioned atop the other, and suitable connectors for maintaining the cartons in assembled relation. The connector elements may comprise staples, an adhesive strap, or connector elements disposed partially within each container for maintaining the cartons in assembled relation during shipment. When in use, the connector elements can be removed to separate the containers.