SECTION 02612
NONREINFORCED CONCRETE SEWER PIPE
PART 1 GENERAL
1.1
SUMMARY
A.
Section Includes: Furnishing and installing nonreinforced concrete
sewer pipe. Provide concrete sewer pipe less than 12 inches in
diameter, and in other sizes when specifically called for, to be
nonreinforced concrete pipe.
B.
Related Work Specified in Other Sections Includes:
1.
2.
1.2
Section 02650 - Laying and Jointing Buried Pipelines
Section 02676 - Leakage Tests
REFERENCES
A.
Codes and standards referred to in this Section are:
1.
2.
3.
1.3
ASTM C 14
- Specification for Concrete Sewer, Storm Drain,
and Culvert Pipe
ASTM C 443 - Specification for Joints for Circular Concrete
Sewer and Culvert Pipe, Using Rubber Gaskets
ASTM C 497 - Test Methods for Concrete Pipe, Manhole
Sections, or Tile
SUBMITTALS
A.
General: Provide all submittals, including the following, as specified in
Division 1.
B.
Shop Drawings: Submit complete shop drawings of all plastic liner,
details of installation and joints between pipes and structures, between
other pipes and all other joints for approval.
C.
Samples: Submit samples of the type of sheet and strip plastic liner
plate for approval, together with a list of ingredients from which the
sheets and strips are to be compounded. Submit the list to show the
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percentage of each ingredient used in the formulation. No changes in
formulation are permitted without prior approval.
D.
1.4
Quality Control:
approval.
Submit certified test results of all shop tests for
QUALITY ASSURANCE
A.
General: Provide concrete sewer pipe that is precast or machine made
and of the product of a concern that can demonstrate by tests and
installation records satisfactory experience in manufacturing concrete
pipe of the quality and type specified.
B.
Provide nonreinforced concrete pipe meeting the requirements of ASTM
C 14 for Class 2 or Class 3 nonreinforced concrete pipe.
C.
Classes: Provide the classes of concrete sewer pipe for the various
pipelines as shown or specified.
1.5
DELIVERY, STORAGE AND HANDLING
A.
Deliver, store and handle all products and materials as specified in
Division 1 (and as follows:)
PART 2 PRODUCTS
2.1
MATERIALS
A.
Concrete Pipe: Manufacture all nonreinforced concrete pipe in the
longest lengths normally available except where shorter lengths are
required for pipeline curves or at junctions with structures whose
location cannot be adjusted.
1.
Design: Cure all pipe by steam or membrane curing.
curing is not permitted.
a.
B.
Water
Do not deliver pipe to the site of the work until it has attained
an age of at least 12 days.
Specials, Fittings and Accessories: Provide specials, fittings, and
accessories where shown, specified or required, and manufactured in
accordance with the applicable sections of the respective standard of
the adjoining pipe. Provide joints the same as in the adjoining pipe.
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Provide the interior surface of bends of the same smoothness and
diameter as the adjoining pipe. Provide the center line radius of
curvature to be equal, in dimension, to the inside diameter of the pipe.
1.
C.
Strength: Design all specials, fittings, and accessories to have the
same strength as the class of the adjoining pipe. Submit working
drawings in conjunction with those submitted for the entire
pipeline.
Joints: Have nonreinforced concrete pipe manufactured with bell and
spigot ends suitable for use with a rubber gasket joint.
1.
Gaskets: Provide pipe ends for use with rubber gaskets that are
suitably reinforced or of sufficient thickness to withstand the
stresses caused by the compression of the gasket without
cracking or fracturing, and provide surfaces that are smooth and
free from spalls, cracks, fractures, and imperfections that would
adversely affect the performance of the joint.
2.
Gasket Design: Provide rubber gaskets of the 0-ring type.
Provide the composition and physical requirements of the gasket
for joints not normally subjected to internal pressure meeting the
requirements of ASTM C 443. Do not stretch the gasket more
than 20 percent when placed on the spigot of the pipe. Provide
the gasket of such size that when the joint is off center sufficiently
to cause the outer surface of the spigot end of the pipe and the
inner surface of the bell end of the adjacent pipe to come into
contact at some portion of their periphery, the deformation of the
stretched rubber gasket is not more than 50 percent at the point of
contact nor less than 20 percent at any point of the normal
diameter or thickness of the gasket before deformation. Provide
the gasket to be the sole element depended upon to make the
joint watertight.
3.
Bell and Spigot: Provide inside surfaces of the bell and outside
surfaces of the spigot to be parallel with each other within one
degree and, unless otherwise permitted, with an angle of not more
than 2 degrees with the longitudinal axis of the pipe. Angles
greater than 2 degrees will be approved only if plant or field
hydrostatic tests show that the adjacent pipes can be properly
joined and that the joint will not leak under a deflection sufficient to
open one side of the joint 1/2-inch wider than the fully compressed
position. In no case are angles of greater than 5 degrees
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approved. Provide the spigot with a preformed groove of sufficient
depth to hold the gasket securely in place and produce the proper
compression in the gasket.
4.
2.2
Grout: Fill the interior annular space of each joint, for pipe sizes
30 inches and larger in diameter, with cement grout as specified in
Section 02650.
SOURCE QUALITY CONTROL
A.
Tests: Test concrete sewer pipe in accordance with the applicable
provisions of ASTM C 497 as required by the ASTM Specification for
the pipe. Test not less than three sections of each size and class of
pipe.
B.
Basis of Acceptance:
Conform the basis of acceptance for
nonreinforced concrete pipe with Section 5.1 of ASTM C 14.
C.
Results: Have the manufacturer submit certified test results of these
tests for approval. Provide the number of pipe tested equal to one
percent of the number of pipe manufactured in any one size and class,
except that not less than three pipes are to be tested unless otherwise
approved.
PART 3 EXECUTION
3.1
INSTALLATION
A.
General: Install all nonconcrete sewer pipe in accordance with the
manufacturer's recommendations and approved shop drawings and as
specified in Division 1.
B.
Install nonreinforced concrete sewer pipe in accordance with the
requirements of Section 02650.
3.2
FIELD QUALITY CONTROL
A.
Tests: After installation of the nonreinforced concrete pipe and all
appurtenances, subject the pipeline to a field running test, as specified
in Division 1, under actual operating conditions.
B.
Leakage Tests: Test the nonreinforced concrete pipelines for leakage
after completion in accordance with Section 02676.
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3.3
SCHEDULES
A.
Refer to the schedules contained in Section 02650 Laying and Jointing
Buried Pipelines for information on the piping that is to be constructed
using the pipe materials and methods specified herein.
END OF SECTION
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