General Technologies, Inc. - GTI USA

1 General technologies , Inc. is proud to present the most reliable Fully Encapsulated Corrosion Protection System available to the Post-Tensioning Industry today. The GTI Zero Void Encapsulation System is a proven method of providing corrosion protection for unbonded tendons. The Zero Void System eliminates the need to strip the plastic sheathing protecting the strand prior to stressing. GTI has perfected a special tool, the GTI Sheathing Stripper , to remove the sheathing from inside the anchor cavity immediately prior to stressing. There is no bare strand exposure. The Zero Void System eliminates the need to fill tubes with grease as required by ACI & the PTI Guide Specification. The Zero Void System uses seals to provide thermal tolerance for shrinkage of the sheathing. The Zero Void Fixed End, or Dead End, anchor can be push seated in the fabricator's plant or hand installed by using a Zero Void anchor with spring-loaded wedges in the field, thus eliminating pull seating of the fixed-end wedges and the need for a grease filled tube to protect the strand.

2 The Zero Void Nail-Less Pocket Former was designed to eliminate the use of nails to fasten the stressing anchor to the edge form, eliminating staining of the concrete surface. The Zero Void System utilizes the GTI Plasma Cutter to cut tendon tails after stressing. The GTI Plasma Cutter generates a minimal amount of heat during cutting and has no effect on the heat treatment of the strand and the wedges compared to oxy-acetylene torch cutting. The GTI Plasma Cutter quickly cuts the tendon tail to a precise length, unlike other methods, so that the Zero Void cap can be quickly and permanently locked in place. GTI's patented Zero Void Grease Cap was created especially for the Zero Void System. The cap is supplied as part of the Zero Void system and is pre-filled with grease that is held in place by our patented clear membrane. The clear membrane will be broken by the cut tail of the PT tendon when the cap is locked into place.

3 Once the clear membrane has been broken, the grease displaced by the tendon tail will fill the wedge cavity, further increasing the corrosion protection within the assembly. Our patented system consists of a cast anchor encapsulated in a thick (80 mil) polyethylene material with excellent chemical and cold temperature resistance. This hard coating makes the system more dependable than the ordinary epoxy coating that is currently available in the market today. GTI's Zero Void System meets or exceeds the latest PTI & ACI requirements for mono-strand corrosion protection systems. The GTI Zero Void System is a significant advancement in corrosion protection of unbonded tendons for post-tensioned concrete construction. US PATENT No. 4,896,470; 5,072,558; 5,436,425; 5,440,842; 5,755,065; 5,770,286;. 5,788,398; 5,839,235; 5,897,102; 6,017,165; 6,151,850; 6,176,051.

4 US AND FOREIGN PATENTS PENDING 5/10. 206314. 6" Zero Void . Seal Fixed End 206314 Spring-Loaded 6" Zero Void . Translucent Seal 201102 Fixed End Wedges 206302 206310. 206301 Zero Void Cap Zero Void Encapsulation Zero Void with Grease with Encapsulation Spring-Loaded Wedges 206314. 206314 6" Zero Void 206301. 6" Zero Void Translucent Zero Void . Translucent Seal Seal Encapsulation 206301. Zero Void 206358. Encapsulation Zero Void . 206350. Zero Void Pocket Former, Intermediate Coupler Intermediate Assembly 206314. 6" Zero Void . 206350. Translucent Seal Intermediate Anchorage Zero Void . Intermediate Coupler 206314. Assembly 6" Zero Void . Detail: 206314 Translucent Seal Metal Ring 6" Zero Void . with Groove Translucent Seal 206304. Zero Void . 206314 Pocket Former, 6" Zero Void Mandrel 206303. Translucent Seal 201102. 206301 Zero Void . Wedges Pocket Former, 2".

5 Zero Void . Encapsulation (Plasma). 207301. Zero Void Encapsulation w/Metal Ring (Oxyacetylene). 206109. Stressing End 204303. 2" Pocket Former Zero Void Clear 206305. Zero Void . Cap Pocket Former with Grease 206302. Nut Zero Void Cap with Grease . " Zero Void . Mono-Strand Corrosion Protection System with Zero Void Coupler US PATENT No. 4,896,470; 5,072,558; 5,436,425; 5,440,842; 5,755,065;. 5,770,286; 5,788,398; 5,839,235; 5,897,102; 6,017,165; 6,151,850; 6,176,051. US & FOREIGN PATENTS PENDING 8/10. 206414. 6" Zero Void . Seal Fixed End 206414 Spring-Loaded 6" Zero Void . Translucent Seal 201202 Fixed End Wedges 206209 206410. 206401 Zero Void Clear Zero Void Encapsulation Zero Void Cap with Encapsulation with Grease Spring-Loaded Wedges 206414 206414 206401. 6" Zero Void 6" Zero Void Zero Void . Translucent Seal Translucent Encapsulation Seal 206401 206458.

6 Zero Void Zero Void . Encapsulation Pocket Former, 206450 Intermediate Zero Void . Intermediate Coupler Assembly 206414. 6" Zero Void 206450. Translucent Seal Intermediate Anchorage Zero Void . Intermediate Coupler 206414. Assembly 6" Zero Void . 206414 Translucent Seal Detail: 6" Zero Void 206415. Metal Ring Translucent Zero Void . with Groove Seal Encapsulation (Plasma). (Tapped). 204212. Zero Void . 206414. Pocket Former, 6" Zero Void . 201202 Mandrel 206403. Translucent Seal Wedges Zero Void . Pocket Former, 2". 207401. Zero Void Encapsulation w/Metal Ring (Oxyacetylene). 206209. Zero Void Clear Stressing End 204401. 2" Pocket Former Cap 206305. with Grease Zero Void . Pocket Former Nut 206209. Zero Void Clear " Zero Void Cap with Grease Mono-Strand Corrosion Protection System with Zero Void Coupler US PATENT No. 4,896,470; 5,072,558; 5,436,425; 5,440,842; 5,755,065.

7 5,770,286; 5,788,398; 5,839,235; 5,897,102; 6,017,165; 6,151,850; 6,176,051. US & FOREIGN PATENTS PENDING 5/10.