Abstract: A barrier cable coupler for coupling two lengths of barrier cable comprises a coupler body including a threaded inner surface, a first end, and a second end; a fixed retaining collar having an outer surface and being retained to the first end of the coupler body, the fixed retaining collar including a tapered inner surface; one or more fixed end wedges positioned within the tapered inner surface of the fixed retaining collar; a tensioning retaining collar having an outer surface, the tensioning retaining collar positioned at least partially within the second end of the coupler body and including a tapered inner surface; one or more tensioning end wedges positioned within the tapered inner surface of the tensioning retaining collar; and a tensioning nut including a threaded outer surface engaging the threaded inner surface of the second end of the coupler body and retaining the tensioning retaining collar therein.

Abstract: A closure assembly includes a section of duct, a duct coupler assembly, a closure load plug, and an end cap. The duct coupler assembly is fit against the section of duct. The closure load plug is mechanically connected to the duct coupler assembly. The end cap is mechanically connected to the closure load plug.

Abstract: A table shear may include a clamp and a shearing mechanism, the shearing mechanism supported by the clamp. The shearing mechanism may include a fixed lower shear blade, a lower shear blade backup plate supporting the fixed lower shear blade, a moveable upper shear blade and a shear compression cylinder. The shear compression cylinder abuts the movable upper shear blade.

Abstract: A rebar support chair having a chair body including a plurality of conjoined legs, the conjoined legs defining a receiving area and a foot affixed to at least one leg.

Abstract: An intermediate anchor assembly includes an encapsulated anchor having a front and rear encapsulation extensions. The assembly includes a cap with an outer surface and a front tube with an inside diameter that is greater than the outer diameter of a tension member. The assembly includes a front adapter that sealingly couples to the outer surface of the cap and sealingly couples to the outer surface of the front tube. The assembly includes a rear tube having an inside diameter that is greater than the outer diameter of the tension member. The assembly includes a rear adapter that sealingly couples to the rear encapsulation extension and sealingly couples to the outer surface of the rear tube. The assembly includes a first split seal sealingly fit between the tension member and the front tube and a second split seal sealingly fit between the tension member and the rear tube.

Abstract: A method and system for forming a post-tensioned concrete slab using a post-tensioning concrete anchor. The system may comprise a connector anchor including a bore that includes a first frustoconical portion, and the connector anchor may be adapted to bear on the post-tensioning concrete anchor. The system may also comprise a coupler comprising a connector and a coupler body that includes a second frustoconical portion that is oriented oppositely to the first frustoconical portion. The connector may have a bore therethrough and may be configured to receive the coupler body and to engage the connector anchor. A pocket-forming cap may releasably engage the post-tensioning concrete anchor; the pocket-forming cap may include a frustoconical wall, a gripping head, and a connector-receiving portion. The method may include using the system to form a second concrete section adjacent to a first concrete section before stressing the first concrete section.

Abstract: An anchor assembly for use on a tension member in a post-tensioning concrete application, the anchor assembly may comprise an encapsulated anchor body, the encapsulation defining front and rear encapsulation extensions, a rear nut engaging the rear encapsulation extension, a cap engaging the front encapsulation extension and having a cap extension, a front nut engaging the cap extension, wherein placement of a tension member in the anchor assembly results in definition of front and rear annular spaces, and front and rear seal positioned in the front and rear annular spaces, respectively. The seals may be split seals. A method includes positioning a tension member in the bore, decoupling the cap from the front encapsulation extension, positioning at least one wedge in the frustoconical inner chamber, recoupling the cap, decoupling the front and rear nuts; positioning a seal in each annular space, and recoupling the front and rear nuts.

Abstract: An assembly and method for repairing sheathing on a tension member of a post-tensioning tendon may include an outer tube having first and second end portions, a tubular long seal positioned inside the outer tube, the tubular long seal being shorter than the outer tube, first and second seals positioned in the first and second end portions of the outer tube, respectively, and first and second nuts retaining the first and second seals in the first and second end portions of the outer tube, respectively. The assembly may define a longitudinal passage adapted to receive the tension member and the presence of the assembly on the tension member seals the portion of the tension member that is within the assembly. An inner tube may be positioned between the outer tube and the tubular long seal and may radially compress the tubular long seal.

Abstract: A strand cutter includes a drive assembly and a clamp assembly. The strand cutter includes a nose piece. The nose piece includes a nose piece body, a shoulder, a fixed blade receptacle and a rotating blade receptacle. The strand cutter includes a fixed blade received in the fixed blade receptacle and a rotating blade assembly. The rotating blade assembly includes a cylindrical cutting body, a replaceable shear blade or a cutting edge, and a drive gear engagement coupled to or integrated with the cutting body. The drive gear engagement engages the drive assembly so as to allow the transmission of torque from the drive assembly to the blade mount, the blade mount coupled to or integrally formed with the cutting body. The strand cutter also includes a flange plate, wherein the flange plate receives the shoulder. The flange plate retains the nose piece in engagement to the drive assembly.

Abstract: An assembly for use with a post-tensioning tension member may comprise an anchor body; an anchor encapsulation including rear and front encapsulation extensions; a rear nut coupled to the rear encapsulation extension; a cap coupled to the front encapsulation extension and including a cap extension; a cover extending around a portion of the tension member, the cover being tubular and having proximal and remote end portions; a coupler coupled to both the cap extension and the proximal end portion; and a remote nut coupled to the remote end portion. The assembly may further include a rear seal positioned between the rear encapsulation extension and the tension member; a front seal positioned between the cap extension and the tension member; a proximal seal positioned between the proximal end portion and the tension member; and a remote seal positioned between the remote end portion and the tension member.

Abstract: A method and system for forming a post-tensioned concrete slab using a post-tensioning concrete anchor. The system may comprise a connector anchor including a bore that includes a first frustoconical portion, and the connector anchor may be adapted to bear on the post-tensioning concrete anchor. The system may also comprise a coupler comprising a connector and a coupler body that includes a second frustoconical portion that is oriented oppositely to the first frustoconical portion. The connector may have a bore therethrough and may be configured to receive the coupler body and to engage the connector anchor. A pocket-forming cap may releasably engage the post-tensioning concrete anchor; the pocket-forming cap may include a frustoconical wall, a gripping head, and a connector-receiving portion. The method may include using the system to form a second concrete section adjacent to a first concrete section before stressing the first concrete section.

Abstract: A sheathing repair assembly for a tension member of a post-tensioning tendon, the tension member including a strand and a sheathing layer is disclosed. The sheathing repair assembly includes a repair tube having first and second end portions and a first sealing assembly. The first sealing assembly includes a first nut having a first frustoconical surface and a first forcing element adapted to cooperate with the first frustoconical surface so as to compress the first end portion of the repair tube. The sheathing repair assembly also includes a second sealing assembly having a second nut having a second frustoconical surface and a second forcing element adapted to cooperate with the second frustoconical surface so as to compress the second end portion of the repair tube.

Abstract: A barrier cable anchor may include an anchor body including an inner surface, a retainer having a retainer body and the retainer body being retained to the anchor body, a collar having an outer surface and an inner surface and being at least partially within the anchor body, one or more wedges positioned within the tapered inner surface of the collar, and a nut engaging the collar and retained to the anchor body. The retainer may include a pin end retained to the inner surface of the anchor body and the nut may include a threaded outer surface so that rotating the nut within the anchor body advances the retaining collar and thereby tensions the barrier cable.

Abstract: A duct coupling system has a first concrete segment, a first duct positioned in the first concrete segment so as to have an end extending outwardly therefrom, a second concrete segment, a second duct positioned in the second concrete segment so as to have an end extending outwardly therefrom in a direction toward the end of the first duct, and a tubular member slidably positioned over the ends of the first and second ducts so as to join the first and second ducts together in a liquid-tight relationship. The first concrete segment is positioned in spaced relation to the second concrete segment. A wet joint is formed in the space between the first concrete segment and the second concrete segment. The tubular member is embedded in the wet joint.

Abstract: A spark absorbing system for use with a cutting torch, comprises a cap having at least one spark opening therethrough and a spark capture unit coupled to the cap and positioned to capture sparks passing through the spark opening. The spark capture unit may comprise a tube extending from the cap and may include an outlet and a flow-reduction element positioned between the cap and the outlet and/or a spark accumulator between the cap and the spark capture unit. The flow-reduction element may comprise at least one baffle, screen or mesh. The spark absorbing system may further include a spark ramp extending from the cap opposite the spark capture unit and/or a shield, which may define a cutting space between the shield and the cap.

Abstract: An assembly for use with a post-tensioning tension member may comprise an anchor body; an anchor encapsulation including rear and front encapsulation extensions; a rear nut coupled to the rear encapsulation extension; a cap coupled to the front encapsulation extension and including a cap extension; a cover extending around a portion of the tension member, the cover being tubular and having proximal and remote end portions; a coupler coupled to both the cap extension and the proximal end portion; and a remote nut coupled to the remote end portion. The assembly may further include a rear seal positioned between the rear encapsulation extension and the tension member; a front seal positioned between the cap extension and the tension member; a proximal seal positioned between the proximal end portion and the tension member; and a remote seal positioned between the remote end portion and the tension member.

Abstract: An assembly and method for repairing sheathing on a tension member of a post-tensioning tendon may include an outer tube having first and second end portions, a tubular long seal positioned inside the outer tube, the tubular long seal being shorter than the outer tube, first and second seals positioned in the first and second end portions of the outer tube, respectively, and first and second nuts retaining the first and second seals in the first and second end portions of the outer tube, respectively. The assembly may define a longitudinal passage adapted to receive the tension member and the presence of the assembly on the tension member seals the portion of the tension member that is within the assembly. An inner tube may be positioned between the outer tube and the tubular long seal and may radially compress the tubular long seal.

Abstract: A sheathing repair assembly for a tension member of a post-tensioning tendon, the tension member including a strand and a sheathing layer is disclosed. The sheathing repair assembly includes a repair tube having first and second end portions and a first sealing assembly. The first sealing assembly includes a first nut having a first frustoconical surface and a first forcing element adapted to cooperate with the first frustoconical surface so as to compress the first end portion of the repair tube. The sheathing repair assembly also includes a second sealing assembly having a second nut having a second frustoconical surface and a second forcing element adapted to cooperate with the second frustoconical surface so as to compress the second end portion of the repair tube.

Abstract: An anchor assembly for use on a tension member in a post-tensioning concrete application, the anchor assembly may comprise an encapsulated anchor body, the encapsulation defining front and rear encapsulation extensions, a rear nut engaging the rear encapsulation extension, a cap engaging the front encapsulation extension and having a cap extension, a front nut engaging the cap extension, wherein placement of a tension member in the anchor assembly results in definition of front and rear annular spaces, and front and rear seal positioned in the front and rear annular spaces, respectively. The seals may be split seals. A method includes positioning a tension member in the bore, decoupling the cap from the front encapsulation extension, positioning at least one wedge in the frustoconical inner chamber, recoupling the cap, decoupling the front and rear nuts; positioning a seal in each annular space, and recoupling the front and rear nuts.

Abstract: A system for use with a post-tensioning concrete anchor may comprise a connector anchor including a bore therethrough, the bore including a first frustoconical portion, the connector anchor adapted to bear on the post-tensioning concrete anchor, and a coupler. The coupler may comprise a coupler body including a bore therethrough, the bore including a second frustoconical portion that is oriented oppositely to the first frustoconical portion, and a connector having a bore therethrough and configured to receive the coupler body therein, the connector adapted to mechanically engage the connector anchor such that a tensioning force can be transmitted from the coupler body to the connector anchor via the connector. A method of using the system may allow a second concrete section to be poured adjacent to a first concrete section before the first concrete section has been stressed.