Abstract: An article for connecting couplers during formation of matchcast concrete segments with an annular member with an outer surface, a first edge and a second edge opposite the first edge. A first slot formed in the outer surface opens to the first edge and extends angularly inwardly therefrom. A second slot is formed in the outer surface in spaced relation to the first slot and opens to the second edge and extends angularly inwardly therefrom. The first slot has a rectangular portion with a side opening to the first side of the annular member and a groove extending angularly from an opposite side of the rectangular portion. The second slot has a rectangular portion with a side opening to the second side of the annular member and a groove extending angularly from an opposite side of the rectangular portion.

Abstract: A duct coupler has a body with an inner wall with a first channel and a second channel formed in the inner wall, a first seal received in the first channel, and a second seal received in the second channel. The body has a first open end suitable for receiving a first duct therein and a second open end at an opposite end thereof suitable for receiving the second duct therein in longitudinal alignment with the first duct. The first seal is suitable for bearing on an outer surface of the first duct. The second seal is suitable for bearing on the outer surface of the second duct. The body fixedly locks the first and second ducts therein such that the ends of the ducts are adjacent to each other and such that the body forms a liquid-tight seal with outer surfaces of the ducts.

Abstract: A support apparatus for installing a pipeline into a trench has a first pipeline-receiving section, a second pipeline-receiving section, and a fastener removably affixed to at least one of the first and second pipeline receiving sections. The fastener is connected to the first and second pipeline-receiving sections so as to be in a pipeline-supporting position. The fastener is removable from at least one of the first and second pipeline-receiving sections so as to allow the first and second pipeline-receiving sections to separate from each other. Each of the pipeline-receiving sections includes a pipeline-receiving surface and a support affixed to the pipeline-receiving surface and extending downwardly therefrom so as to allow the pipeline-receiving surface to be positioned at a desired location above a bottom of the trench.

Abstract: A support apparatus for installing a pipeline into a trench has a first pipeline-receiving section, a second pipeline-receiving section, and a fastener removably affixed to at least one of the first and second pipeline receiving sections. The fastener is connected to the first and second pipeline-receiving sections so as to be in a pipeline-supporting position. The fastener is removable from at least one of the first and second pipeline-receiving sections so as to allow the first and second pipeline-receiving sections to separate from each other. Each of the pipeline-receiving sections includes a pipeline-receiving surface and a support affixed to the pipeline-receiving surface and extending downwardly therefrom so as to allow the pipeline-receiving surface to be positioned at a desired location above a bottom of the trench.

Abstract: A coupler apparatus for use with concrete segments has a first duct having an end and an exterior surface, a first coupler member having a connector, a second duct having an end and an exterior surface, a second coupler member having a connector, and a gasket received in the connectors of the first and second coupler members for forming a liquid-tight seal between the first and second ducts. The first duct and first coupler member are embedded in a first concrete segment. The second duct and second coupler member are embedded in a second concrete segment. The gasket has a generally annular shape. The gasket has a bulge portion positioned between a first end and a second end. Each concrete segment has an end surface. The bulge portion fits between the end surfaces of the concrete segments.

Abstract: A bolster for use in construction has a pair of spaced apart frame members and a plurality of rung members in spaced relationship extending between the pair of spaced apart frame members. The pair of spaced apart frame members have a generally rectangular configuration and a plurality of openings formed therethrough. The pair of spaced apart frame members and the plurality of rung members are formed integrally together of a polymeric material. The openings of the pair of spaced apart frame members have a generally rectangular shape.

Abstract: A cartridge for retaining a sheathing of a tendon within an anchor assembly has a generally tubular body with outer and inner surfaces, and at least one wedge positioned within the tubular body and against the inner surface thereof. The wedge has a surface opposite the inner wall that engages with the sheathing of the tendon. A seal is affixed to an end of the tubular body which is suitable for sealing against an anchor of the anchor assembly and an inner surface suitable for sealing against the sheathing. The inner wall of the tubular body tapers so as to narrow in inner diameter from one end thereof. The wedge has a surface bearing against the tapered portion of the inner wall of the tubular body. A protrusion extends outwardly of the tubular body so as to be received within a slot of a tubular extension of the anchor assembly.

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 deviator apparatus for use in segmental concrete construction has a duct and a pipe extending through an interior of the duct. The duct has a first end and a second end and a central portion. The first end has a diameter substantially greater than a diameter of the central portion. The pipe has a diameter substantially less than a diameter of a duct at the first end. The pipe has a length substantially greater than a length of the duct. A plurality of tendons extend through the pipe. The duct increases constantly in diameter from the central portion to the first end. The duct has ribs formed on an exterior surface thereof.

Abstract: A duct coupling system has a first duct with and end having a threads thereon, a second duct having an end with threads thereon, and a coupler having a first end threadedly engaged with the threads of the first duct and a second end threadedly engaged with the threads of the second duct. The ducts and the coupler are each integrally formed of a polymeric material. A plurality of tendons extend through the interior passageways of the ducts of the coupler.

Abstract: A pocketformer for use with an anchor body in post-tensioning concrete has a body having a first side and a second side and a first end and a second end and an interior, a front face formed adjacent the first end, and a tubular member formed in the interior of the body. The first side tapers from the second end to the first end. The second side tapers from the second end to the first end. The first side has an angle of taper greater than an angle of taper of the second side. The body has a generally hollow interior. The tubular member extends from the first end to the second end within the interior of the body. The angle of taper of the first side is approximately 45°.

Abstract: A sealing cap for an anchor of a post-tension anchorage system has a tubular body, a flange formed on an end of the tubular body, and a seal positioned adjacent an interior wall of the tubular body. The flange has a connector formed on a circumferential surface thereof for detachably engaging the flange with a tubular section of the anchor. The seal is positioned against the interior wall of the tubular body. The seal has a tubular shape so as to extend entirely around the interior wall. The seal is positioned in liquid-tight relation between the interior wall of the tubular body and a sheathed portion of a tendon extending from the anchor. The seal is inserted between the sheathed portion and the interior wall of the tubular body.

Abstract: A pocketformer apparatus for post-tension construction has an anchor member with an interior passageway, a tubular member extending into the interior passageway, a cup member with an interior opening in which the tubular member extends through the interior opening, and a securement member affixed adjacent the opposite end of the tubular member from the anchor body. The interior passageway has a threaded portion. The tubular member has a first end retained in the threaded portion. The tubular member has the second end extending outwardly of a side of the anchor body opposite the threaded portion. The cup member is interposed between the securement member and the anchor member. A form board is interposed between the cup member and the securement member. The threaded portion is an internal thread formed on an non-tapered portion of the interior passageway.

Abstract: A post-tension apparatus has an anchor member having a cavity formed in an interior thereof, a tendon extending through the cavity of the anchor member the has an unsheathed portion and a sheathed portion, an encapsulation affixed to the anchor member and extending thereover that has a trumpet formed at one end of the anchor member, a sheathing lock positioned in the cavity and engaged with the sheathed portion of the tendon, a seal affixed within the trumpet so as to reside in liquid-tight sealing relation with the sheathed portion of the tendon, and wedges recessed in the cavity of the anchor member. The pair of wedges is engaged with the unsheathed portion of the tendon. The sheathing lock is positioned adjacent an end of the pair of wedges.

Abstract: An apparatus for fixing an orientation of a duct in concrete segmental construction has an elongated body, a frame having an inner surface facing the elongated body, and an angle adjusting means connecting the inner surface of the frame to the elongated body. The elongated body is orientable relative to the frame about the ball joint. The angle adjusting means includes a pin extending through the frame, a ball mounted on the pin, and a flange mounted to the ball so as to be in surface-to-surface contact with an end of the elongated body. The pin is operably connected to the ball so as to fix an orientation of the flange.

Abstract: A method for forming a sheathing retaining anchor of a post-tension anchor system includes the steps of: forming an anchor having a bore where the bore has a tapered portion and a constant diameter portion, inserting an end of a tendon through the bore of the anchor so that the end of the tendon extends outwardly of tapered portion of the bore of the anchor, positioning a sheathing lock on the end of the sheathed portion or a tendon, placing a pair of wedges on the unsheathed portion of the tendon, and moving the sheathing lock and the pair of wedges into the bore of the anchor so that the sheathing lock affixes the end of the sheathed portion within the bore and so that the pair of wedges affixes the unsheathed portion within the bore.

Abstract: A cap for an anchorage of a post-tension anchor system has an outer tubular portion having an inner wall and an outer wall, an inner tubular portion having an inner wall and an outer wall, an end wall extending between the outer tubular portion and the inner tubular portion, and a sheathing lock affixed to the inner wall of the inner tubular portion. The inner wall of the outer tubular portion is in spaced relation to the outer wall of the inner tubular portion. The outer tubular portion and the inner tubular portion are concentric with each other. The sheathing lock has a body having locking ribs extending radially inwardly therefrom. The locking ribs extend in parallel relationship to each other. The outer tubular portion and the inner tubular portion and the end wall are integrally formed of a polymeric material.

Abstract: An anchorage for post-tension system has an anchor body with an interior passageway, a polymeric encapsulation extending over the anchor body so as to define a trumpet extending outwardly on one side of the anchor body, and an annular seal formed so as to extend inwardly relative to a wall of the trumpet. The annular seal is in liquid-tight sealing relation with an outer surface of a tendon extending through the interior passageway. A fixing element is formed within the interior passageway so as to fix a position of the sheathing on the tendon.

Abstract: An apparatus for fixing the sheathing of an end of a tendon within an anchor body of a post-tension anchor system has an anchor body that has a cavity formed in an interior thereof, a tendon extending into the cavity that has a sheathing extending at least partially thereover and has a sheathed portion and an unsheathed portion, a pair of wedges in engagement with the unsheathed portion of the tendon in the cavity of the anchor body, and at least one wedge member engaged with the sheathed portion. The wedge member has a first portion and a second portion. The first portion is of a generally constant thickness and has an end adjacent the pair of wedges. The second portion has a first end and a second end, the second portion being of a decreasing thickness from the first end to the second end.