Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: AASHTO MP 7:2001
• Năm ban hành / Publication date: 2001
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Specification for Corrugated Polyethylene Pipe, 1350 and 1500 mm Diameter
• Thay thế cho / Replace: AASHTO MP 7:1999
• Số trang / Page: 7

Phạm vi áp dụng / Scope of standard

This specification covers the requirements and methods of tests for
corrugated polyethylene (PE)
pipe, couplings, and fittings for use in surface and subsurface
drainage applications. Nominal
sizes of 1350 and 1500 mm are included. Materials, workmanship,
dimensions, pipe stiffness,
environmental stress crack resistance, joining systems, brittleness,
and form of markings are
specified.

Corrugated polyethylene pipe is intended for surface and subsurface
drainage applications where
soil provides support to its flexible walls. Its major use is to
collect or convey drainage water
by open gravity flow, as culverts, storm drains, etc.

Note 1 - When polyethylene pipe is to be used in locations where the
ends may be exposed,
consideration should be given to combustibility of the polyethylene
and the deteriorating effects
of prolonged exposure to ultraviolet radiation.

This specification does not include requirements for bedding,
backfill, or earth cover load.
Successful performance of this product depends upon proper type of
bedding and backfill, and care
in installation. A structural design of corrugated polyethylene pipe
and installation procedures
are given in the AASHTO Standard Specification for Highway Bridges.
Upon request of the purchaser
or engineer, the manufacturer shall provide profile wall section
detail required for a full
engineering evaluation.