2.1.6
Polyethylene Tubing
2.1.6.1
Smooth Polyethylene Tubing
[ASTM D 3350] [ASTM D 1248, Type III].
2.1.6.2
Corrugated Polyethylene Tubing
AASHTO M 252, with average minimum wall thickness of 1.5 mm 0.06 inch.
2.1.7
Smooth Polypropylene Tubing
ASTM D 4101, designation PP 210 B5542-11.
2.1.8
Polyvinyl Chloride (PVC) Pipe
ASTM D 1785, Schedule 40.
2.1.9
Polyvinyl Chloride (PVC) Tubing
2.1.9.1
Smooth Polyvinyl Chloride (PVC) Tubing
ASTM D 1784.
2.1.9.2
Corrugated Polyvinyl Chloride (PVC) Tubing
Manufactured from rigid PVC compounds conforming to ASTM D 1784, Class
13464-8 with average minimum wall thickness of 1.0 mm 0.04 inch.
2.1.10
Heat Shrinkable Sleeve
Radiation crosslinked polyolefin tube internally coated with and adhesive
sealant.
2.1.11
The corrosion inhibiting compound shall conform to the requirements of
Section 3.2.5 of PTI 8.
2.2
MANUFACTURED ITEMS
2.2.1
Anchor Head
Anchor head shall consist of [steel bearing plate with wedge plate and
wedges for strand anchors] [or] [steel bearing plate with nut for bar
anchors], trumpet and corrosion protection. Anchorage devices shall be
capable of developing 95 percent of the guaranteed ultimate strength of
prestressing steel. The anchorage devices shall conform to the static
strength requirements of Section 3.1.6 (1) and Section 3.1.8 (1) and (2) of
PTI A. [Wedges shall be designed to not cause premature failure of the
prestressing steel due to notching or pinching. Special wedges shall be
provided as required for epoxy coated strand. Removal of epoxy coating to
permit use of standard wedges will not be permitted.] [Threaded anchorage
items for epoxy coated bars shall be designed to fit over the epoxy coating
and maintain the capacity of the prestressing steel.] The trumpet used to
provide a transition from the anchorage to the unbonded length corrosion
protection shall be fabricated from steel pipe or steel tube. The minimum
wall thickness shall be 3.0 mm for diameters up to 100 mm and 5.0 mm for
larger diameters 0.125 inch for diameters up to 4 inches and 0.20 inch for
SECTION 02490
Page 22