This specification provides performance criteria for materials and detailed recommendations for the fabrication and installation of unbonded single strand tendons
This specification provides performance criteria for materials and detailed recommendations for the fabrication and installation of unbonded single strand tendons specifically used in any application of slab-on-ground construction using unbonded post-tensioned reinforcement. Specifications are presented for both “standard” and “encapsulated” unbonded single-strand tendon systems.
TABLE OF CONTENTS
1.0 — General
1.1 — Scope
1.2 — Definitions
1.3 — References
1.3.1 — Referenced standards and organizations 4
1.3.2 — Cited publications
1.4 — System description
1.5 — Submittals
1.5.1 — Prestressing steel
1.5.2 — Anchorages and couplers
1.5.3 — Sheathing
1.5.4 — PT coating
1.5.5 — Fabrication plant
1.5.6 — Stressing records
1.6 — Fabrication
1.6.1 — General
1.6.1.1 — PTI certified plants
1.6.1.2 — Non-PTI certified plants
1.6.2 — Handling, storage, and shipping
1.6.2.1 — Handling prior to shipping
1.6.2.2 — Storage prior to shipping
1.6.2.3 — Shipping
1.7 — Delivery, handling, and storage
1.7.1 — Delivery
1.7.2 — Handling and storage
1.7.2.1 — Handling
1.7.2.2 — Storage
1.7.2.3 — Exposure
1.7.2.4 — Wedges and anchors
2.0 — Products
2.1 — Prestressing steel
2.1.1 — Mechanical properties
2.1.2 — Thermomechanical treatment
2.1.3 — Traceability
2.1.4 — Testing
2.1.5 — Strand producer records
2.1.6 — Identification
2.1.7 — Packaging, marking, storage,and protection
2.1.8 — Acceptance criteria for surface condition
2.1.9 — Compliance requirements
2.2 — Anchorages and couplers
2.2.1 — Anchorages
2.2.1.1 — Static tests
2.2.1.2 — Fatigue tests
2.2.1.3 — Bearing stresses
2.2.2 — Castings
2.2.3 — Wedges used in anchorages
2.2.4 — Couplers
2.2.5 — Compliance requirements
2.2.5.1 — Conformance testing
2.2.5.2 — Compliance
2.2.6 — Anchorages and couplers in aggressive environments
2.2.6.1 — Anchorages
2.2.6.2 — Encapsulated tendons
2.3 — Sheathing
2.3.1 — General properties
2.3.2 — Minimum thickness and diameter
2.3.2.1 — Minimum thickness
2.3.2.2 — Inside diameter
2.3.2.3 — Appearance
2.3.3 — Fabrication process
2.3.4 — Sheathing coverage
2.3.5 — Encapsulated tendons
2.4 — PT coating
2.4.1 — General properties
2.4.2 — Type of PT coating
2.4.3 — Minimum quantity
2.4.4 — Performance criteria
3.0 — Execution
3.1 — General
3.1.1 — Qualifications and inspection
3.1.2 — Recommended procedures
3.1.3 — Handling
3.1.4 — Protection
3.2 — Tendon installation
3.2.1 — General
3.2.1.1 — Support intervals
3.2.1.2 — Support system
3.2.1.3 — Tendon tolerances
3.2.1.4 — Lateral deviations
3.2.1.5 — Protection
3.2.1.6 — Protection from water
3.2.1.7 — Encapsulated tendons
3.2.2 — Stressing anchorages
3.2.2.1 — Installation
3.2.2.2 — Attachment requirements
3.2.2.3 — Cover requirements
3.2.2.4 — Pocket formers
3.2.2.5 — Encapsulated tendons
3.2.2.6 — Strand tail cover
3.2.3 — Intermediate anchorages
3.2.3.1 — Installation
3.2.3.2 — Placement
3.2.3.3 — Cover requirements
3.2.3.4 — Pocket formers
3.2.3.5 — Encapsulated tendons
3.2.4 — Fixed anchorages
3.2.4.1 — Installation
3.2.4.2 — Wedge seating methodsfor fixed anchorages
3.2.4.3 — Placement
3.2.4.4 — Encapsulated tendons
3.2.5 — Sheathing inspection
3.2.5.1 — Sheathing damage
3.2.5.2 — Repair procedure
3.3 — Concrete placement
3.3.1 — General
3.3.2 — Placement
3.3.3 — Protection of tendons
3.3.4 — Sheathing repairs
3.4 — Tendon stressing
3.4.1 — General
3.4.1.1 — Protection from water
3.4.1.2 — Stressing procedures
3.4.1.3 — Stressing jacks
3.4.2 — Jack calibration
3.4.3 — Elongation measurements
3.5 — Tendon finishing
3.5.1 — General
3.5.1.1 — Cutting of tendon tails
3.5.1.2 — Cutting methods
3.5.2 — Encapsulated tendons
3.5.3 — Stressing pockets
3.5.3.1 — Preparation
3.5.3.2 — Timing