Method and apparatus for sealing an intermediate anchorage of a post-tension system

A post-tension anchor system comprising:

• an anchor body;
• a tendon affixed to said anchor body, said tendon having an unsheathed portion extending outwardly from said anchor body, said tendon having a sheathed portion at an end of said unsheathed portion opposite said anchor body;
• and
• a cap affixed to said anchor body, said cap having an integral tubular member extending outwardly from said anchor body, said tubular member of said cap extending entirely over said unsheathed portion, said tubular member having an open end opposite said anchor body, said open end positioned over said sheathed portion of said tendon, said tubular member having a grease fitting formed thereon, said grease fitting adapted so as to allow grease to be placed within said tubular member and over said unsheathed portion.

A method of encapsulating an unsheathed portion of a tendon in an intermediate anchorage of a post-tension anchor system comprising:

• forming the intermediate anchorage with a polymeric encapsulation surrounding a steel anchor member, said anchor member having a tapered wedge-receiving cavity formed therein, said cavity having a wide end at one end of said anchor member, said polymeric encapsulation having a cylindrical opening extending outwardly of said one end from said anchor member;
• affixing the tendon within said wedge-receiving cavity of the intermediate anchorage such that the unsheathed portion extends outwardly of said one end of said anchor member;
• attaching a cap to said cylindrical opening such that the cap has a tubular member extending over the unsheathed portion, said tubular member having an open end opposite said cylindrical opening, said tendon having a sheathed portion extending through said open end;
• sealing said open end onto said sheathed portion of the tendon;
• and
• injecting grease into said cap through a wall of said tubular member to fill a space between said wall of said tubular member and an exterior surface of said unsheathed portion of the tendon.