Abstract: A system including an insert including a body defining an inner cavity at a first end thereof. The insert includes an anchor having an opening formed therein, and the opening of the anchor is positioned in the inner cavity of the insert. The system further includes a spacer having a first end that is couplable to a second end of the insert to thereby adjust a height of the insert. The spacer is configured to be coupled to another spacer at a second end of the spacer.

Abstract: A system including a reinforcement positioner having a body with a longitudinally-extending spine and a plurality of legs coupled to the spine along a length thereof and at least partially extending away from the spine. The positioner further includes an opening or recess positioned in the body, and a clip configured to be received and retained in the opening or recess.

Abstract: A system including a reinforcement positioner having a body with a longitudinally-extending spine and a plurality of legs coupled to the spine along a length thereof and at least partially extending away from the spine. The positioner further includes an opening or recess positioned in the body, and a clip configured to be received and retained in the opening or recess.

Abstract: A slab bolster including a longitudinally-extending spine and a plurality of legs coupled to the opposite sides of the spine and extending away from the spine. The slab bolster has a frangible portion along which the slab bolster is configured to be manually broken to allow the slab bolster to be manually separated into at least two parts.

Abstract: A construction hanger comprising a brace including a first elongated member; an arm extending from one end of the first elongated member at an angle thereto, the arm and the elongated member cooperating to engage the surface of a construction support member; a guide at the end of the elongated member opposite the one end, the guide being capable of receiving a hanger member, the guide being positioned on or formed within the brace and at an angle thereto; the guide tying the hanging member to the construction support member by means of the brace.

Abstract: A jump form system provided variously with an integral jump shoe lock mechanism, a reversible gang form shear platform, and a pinion lock mechanism for a roll back carriage. The jump shoe lock mechanism includes a lever pivotably mounted to the jump form system frame above a jump shoe bearing portion of a connecting member, a sleeve mounted to the jump form system frame below the jump shoe bearing portion of the connecting member, and a sleeve-mounted safety pin that is mechanically linked to the lever for engagement and disengagement with a jump shoe. The pinion lock mechanism includes a rack and pinion provided on inner and outer portions of a telescoping carriage assembly, respectively, and a lock arm pivotably mounted to the outer portion adjacent to the pinion, with the rack, pinion, and lock arm including complementary teeth which are locked into place upon pivoting engagement of the locking arm.

Abstract: A jump form system provided variously with an integral jump shoe lock mechanism, a reversible gang form shear platform, and a pinion lock mechanism for a roll back carriage. The jump shoe lock mechanism includes a lever pivotably mounted to the jump form system frame above a jump shoe bearing portion of a connecting member, a sleeve mounted to the jump form system frame below the jump shoe bearing portion of the connecting member, and a sleeve-mounted safety pin that is mechanically linked to the lever for engagement and disengagement with a jump shoe. The pinion lock mechanism includes a rack and pinion provided on inner and outer portions of a telescoping carriage assembly, respectively, and a lock arm pivotably mounted to the outer portion adjacent to the pinion, with the rack, pinion, and lock arm including complementary teeth which are locked into place upon pivoting engagement of the locking arm.

Abstract: A jump form system provided variously with an integral jump shoe lock mechanism, a reversible gang form shear platform, and a pinion lock mechanism for a roll back carriage. The jump shoe lock mechanism includes a lever pivotably mounted to the jump form system frame above a jump shoe bearing portion of a connecting member, a sleeve mounted to the jump form system frame below the jump shoe bearing portion of the connecting member, and a sleeve-mounted safety pin that is mechanically linked to the lever for engagement and disengagement with a jump shoe. The pinion lock mechanism includes a rack and pinion provided on inner and outer portions of a telescoping carriage assembly, respectively, and a lock arm pivotably mounted to the outer portion adjacent to the pinion, with the rack, pinion, and lock arm including complementary teeth which are locked into place upon pivoting engagement of the locking arm.

Abstract: A construction hanger comprising a brace including a first elongated member; an arm extending from one end of the first elongated member at an angle thereto, the arm and the elongated member cooperating to engage the surface of a construction support member; a guide at the end of the elongated member opposite the one end, the guide being capable of receiving a hanger member, the guide being positioned on or formed within the brace and at an angle thereto; the guide tying the hanging member to the construction support member by means of the brace.

Abstract: A chair for supporting and spacing post-tension cables having a generally tapered body with an upper receiving area for securing the cables and a planar base adapted to rest on a flat support surface. The body has inner and outer surfaces that are substantially complementary to one another to allow a plurality of chairs to be stacked together. The receiving area includes posts extending upwardly between notches. The posts define passageways for guiding the cables into the notches. Detents project inwardly from the tops of the posts and fixedly retain the bars within the passageways. The chair may be formed from a resilient polymeric material.

Abstract: A brace for use in tilt-up construction is disclosed. The brace includes a bottom surface and a vertical side surface. The bottom surface of the brace is affixed to a permanent horizontal surface (e.g., a slab) in a manner that allows the brace to be removed without damaging the permanent horizontal surface. The vertical side surface of the brace is attached to a concrete pour form. The bottom surface of the brace is affixed to the permanent horizontal surface using an adhesive. Alternatively, a shoe is attached to the permanent horizontal surface and the brace sits in the shoe. A flange is releasably securable with the brace to batter the form when the flange is place in contact therewith. Alternatively, the shoe has an upwardly extending inclined ramp that is operable to orient the brace so that the vertical side surface of the brace is disposed at a battering angle to batter the form.

Abstract: A locking system 24 for securing adjacent concrete form panels 20a, 20b together during assembly of a concrete form 22 is disclosed. The locking system 24 includes a mounting block 50 which is removably attachable to one of the adjacent panels 20a, 20b. A slide member 52 is mounted for sliding movement relative to the mounting block 50 between a first position retracted from aligned apertures 48 in side members 30 of the adjacent panels 20a, 20b and a second position extending through the aligned apertures 48. The slide member 30 includes a bolt member 92 mounted to rotate within the mounting block 50 in its extended position between locked and unlocked positions to secure the adjacent panels 20a, 20b together. Alternatively, the bolt member 206 is configured to receive a wedge member 204 at its projecting end or has a clamping member 304 mounted to rotate on the bolt member 306 for securing the adjacent panels 20a, 20b together.

Abstract: A void former or dowel sleeve adapted to be encapsulated in a hardened mass of concrete, which is collapsible upon the application of a tensile force longitudinally thereof to remove the void former from the concrete and provide a void for a load transferring dowel.

Abstract: A form release composition including a plant oil, an emulsifying agent and water, wherein the plant oil, the emulsifying agent and the water are blended to form an emulsion.

Abstract: A brace for securing concrete forms to a base has first and second triangularly-shaped sidewalls and a back wall extending between corresponding side edges of the sidewalls. A peripheral flange extends outwardly from the side edges of the sidewalls and the ends of the back wall and has apertures for facilitating fastening of the brace to the concrete forms and a casting surface. Advantageously, the brace can be formed as a unitary, molded component. A battering wedge is selectively attachable to the side edges of the sidewalls and cooperates with the brace to facilitate tilting the concrete form at an angle to the casting surface. The battering wedge is selectively frangible to permit use with braces of varying size.

Abstract: In a first aspect, a plurality of slab bolster elements, each including a bolster frame member having a male connector disposed on a first end and a female connector disposed on an opposite end, with the male connector including first and second outer prongs for engaging a complementary female connector and the female connector including first and second opposing side walls with first and second transverse slats extending between the side walls so as to form a socket, the male connector further including a flexible prong extending inwardly between the outer prongs, with the flexible prong including a free inward end and a wedge element configured to resiliently contact and lockingly engage the first transverse slat of another of the plurality of slab bolster elements. In a second aspect, a continuous slab bolster assembly.

Abstract: A jump form system provided variously with an integral jump shoe lock mechanism, a reversible gang form shear platform, and a pinion lock mechanism for a roll back carriage. The jump shoe lock mechanism includes a lever pivotably mounted to the jump form system frame above a jump shoe bearing portion of a connecting member, a sleeve mounted to the jump form system frame below the jump shoe bearing portion of the connecting member, and a sleeve-mounted safety pin that is mechanically linked to the lever for engagement and disengagement with a jump shoe. The pinion lock mechanism includes a rack and pinion provided on inner and outer portions of a telescoping carriage assembly, respectively, and a lock arm pivotably mounted to the outer portion adjacent to the pinion, with the rack, pinion, and lock arm including complementary teeth which are locked into place upon pivoting engagement of the locking arm.

Abstract: A void former or dowel sleeve adapted to be encapsulated in a hardened mass of concrete, which is collapsible upon the application of a tensile force longitudinally thereof to remove the void former from the concrete and provide a void for a load transferring dowel.

Abstract: A multi-level chair for supporting a concrete reinforcement cable at a fixed height from the bottom of a concrete form is provided. The multi-level chair comprises a body having a plurality of receptacles at different heights. Each of the receptacles is adapted to retain a concrete post-tension reinforcement cable. In one embodiment, the body of the chair assumes an inverted V-shape including a pair of legs extending downwardly from an apex. Each of said legs has multiple receptacles to support a cable at a predetermined height from the bottom of the concrete form.

Abstract: A void former or dowel sleeve adapted to be encapsulated in a hardened mass of concrete, which is collapsible upon the application of a tensile force longitudinally thereof to remove the void former from the concrete and provide a void for a load transferring dowel.