ASTM C505-99a

Standard Specification for Nonreinforced Concrete Irrigation Pipe With Rubber Gasket Joints

SCOPE
1.1 This specification covers nonreinforced concrete pipe with rubber gasket joints to be used for the conveyance of irrigation water with working pressures, including hydraulic transients, as shown in Table 1.  
1.2 A complete metric companion to Specification C505 has been developed-C505M; therefore, no SI equivalents are presented in this specification.  Note-This specification is for manufacturing and purchase only and does not include requirements for bedding, backfill, installation, or field repairs. The owner is cautioned that he must correlate field conditions with the characteristics of the pipe specified and provide inspection during installation.

General Information

• Status: Historical
• Publication Date: 09-Aug-1999
• ICS: 23.040.50 - Pipes and fittings of other materials
• Technical Committee: C13 - Concrete Pipe
• Drafting Committee: C13.01 - Non-Reinforced Concrete Sewer, Drain and Irrigation Pipe

Relations

• Replaced By: ASTM C505-03 - Standard Specification for Nonreinforced Concrete Irrigation Pipe With Rubber Gasket Joints
• Effective Date: 10-Jul-2003
• Referred By: ASTM C1619-20 - Standard Specification for Elastomeric Seals for Joining Concrete Structures
• Effective Date: 10-Aug-1999

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 505 – 99a
Standard Specification for
Nonreinforced Concrete Irrigation Pipe with Rubber Gasket
Joints
This standard is issued under the fixed designation C 505; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
TABLE 1 Standard Dimensions, Working Pressures, and Test
1. Scope
Requirements
1.1 This specification covers nonreinforced concrete pipe
Required Minimum
Internal
with rubber gasket joints to be used for the conveyance of
Wall Working Hydrostatic Three-Edge-
Designated
A B
irrigation water with working pressures, including hydraulic
Thickness, Pressure, Test Bearing
Diameter,
C
in. ft Pressure, Load,
transients, as shown in Table 1.
in.
psi lbf/linear ft
1.2 A complete metric companion to Specification C 505
6 ⁄4 30 40 1300
has been developed—C 505M; therefore, no SI equivalents are
8 1 30 40 1350
presented in this specification. 1
10 1 ⁄4 30 40 1400
12 1 ⁄2 30 40 1500
NOTE 1—This specification is for manufacturing and purchase only and
15 1 ⁄8 30 40 1650
does not include requirements for bedding, backfill, installation, or field 1
18 2 ⁄4 30 40 1800
repairs. The owner is cautioned that he must correlate field conditions with 21 2 ⁄8 30 40 1900
24 3 30 40 2000
the characteristics of the pipe specified and provide inspection during
A
installation.
Thinner walls may be used on pipe units not over 4 ft in length, but the
thickness of such walls shall not be less than the internal diameter divided by 10.
B
With the exception of 21 and 24-in. pipe, higher pressures may be used up to
2. Referenced Documents
a maximum of 50 ft for 6 through 12-in. diameters, and 40 ft for 15 through 18-in.
2.1 ASTM Standards:
diameters. In these cases the strength of the pipe shall be increased to give
minimum internal hydrostatic test pressures of at least three times the design
C 33 Specification for Concrete Aggregates
working pressure when tested as specified in 10.4.
C 150 Specification for Portland Cement
C
For hydrostatic test requirements, refer to 10.4.
C 497 Test Methods for Concrete Pipe, Manhole Sections,
or Tile
3 D 573 Test Method for Rubber—Deterioration in an Air
C 595 Specification for Blended Hydraulic Cements
Oven
C 618 Specification for Fly Ash and Raw or Calcined
D 1149 Test Method for Rubber Deterioration—Surface
Natural Pozzolan for Use as a Mineral Admixture in
2 Ozone Cracking in a Chamber
Concrete
D 1415 Test Method for Rubber Property—International
C 822 Terminology Relating to Concrete Pipe and Related
4 Hardness
Products
D 2240 Test Method for Rubber Property—Durometer
C 1116 Specification for Fiber-Reinforced Concrete and
2 Hardness
Shotcrete
D 395 Test Methods for Rubber Property—Compression
3. Terminology
Set
3.1 Definitions—For definitions of terms relating to con-
D 412 Test Methods for Vulcanized Rubber and Thermo-
crete pipe, see Terminology C 822.
plastic Rubbers and Thermoplastic Elastomers—Tension
D 471 Test Method for Rubber Property—Effect of Liq-
4. Classification
uids
4.1 Pipe manufactured in accordance with this specification
shall be known as “Standard Nonreinforced Concrete Irrigation
Pipe with Rubber Gasket Joints.”
This specification is under the jurisdiction of ASTM Committee C-13 on
Concrete Pipe and is the direct responsibility of Subcommittee C13.01 on
5. Basis of Acceptance
Reinforced Concrete Sewer, Drain, and Irrigation Pipe.
5.1 The acceptability of the pipe, joint design, and gaskets
Current edition approved Aug. 10, 1999. Published October 1999. Originally
published as C 505–63T. Last previous edition C 505–99.
shall be determined by the results of the tests prescribed in this
Annual Book of ASTM Standards, Vol 04.02.
specification, if and when required, and by inspection to
Annual Book of ASTM Standards, Vol 04.01.
4 determine whether the pipe and gaskets conform to the
Annual Book of ASTM Standards, Vol 04.05.
Annual Book of ASTM Standards, Vol 09.01. specification as to design and freedom from defects.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C 505
6. Materials and Manufacture While in the stretched position, the gasket shall be rotated in
the spliced area a minimum of 180° in each direction in order
6.1 Concrete—The concrete shall consist of cementitious
to inspect for separation. Any portion of the splice shall be
materials.
capable of passing a bend test without visible separation. The
6.2 Cementitious Materials:
bend test for circular gaskets is defined as wrapping the portion
6.2.1 Cement—Cement shall conform to the requirements
of the unstretched gasket containing the splice a minimum of
for portland cement of Specification C 150 or shall be portland
180° and a maximum of 270° around a rod of a diameter equal
blast-furnace slag cement or portland-pozzolan cement con-
to the cross section diameter of the gasket.
forming to the requirements of Specification C 595, except that
6.5.6 Storage—The gaskets shall be stored in a cool, clean,
the pozzolan constituent in the Type IP portland–pozzolan
and shaded place, preferably at 70°F or less and in no case shall
cement shall be fly ash.
the gaskets be exposed to the direct rays of the sun for more
6.2.2 Fly Ash—Fly ash shall conform to the requirements of
than 72 h.
Specification C 618, Class F or Class C.
6.6 Synthetic Fibers—Collated fibrillated virgin polypropy-
6.2.3 Allowable Combinations of Cementitious Materials—
lene fibers may be used, at the manufacturer’s option, in
The combination of cementitious materials used in the concrete
concrete pipe as a nonstructural manufacturing material. Only
shall be one of the following:
Type III synthetic fibers designed and manufactured specifi-
6.2.3.1 Portland cement only,
cally for use in concrete and conforming to the requirements of
6.2.3.2 Portland blast furnace slag cement only,
Specification C 1116 shall be accepted.
6.2.3.3 Portland pozzolan cement only, or
6.2.3.4 A combination of portland cement and fly ash.
7. Design
6.3 Aggregates—Aggregates shall conform to Specification
7.1 Design Tables—The standard dimensions shall be as
C 33, except that the requirements for gradation shall not
given in Table 1. Wall thicknesses furnished may be more but
apply.
not less than those given in Table 1, except as affected by the
6.4 Admixtures and Blends—Admixtures and blends may be
tolerance specified in Section 12.
used with the approval of the owner.
7.2 Modified Design—Manufacturers may submit to the
6.5 Gaskets:
owner for approval prior to manufacture, wall thicknesses
6.5.1 Composition—The rubber compound used in the
other than those shown in Table 1. Such pipe shall meet all of
manufacture of the gasket shall be compounded from natural
the test and performance requirements specified by the owner
rubber, synthetic rubber, or a mixture of the two fabricated as
in accordance with 5.1.
prescribed in 6.5.2 to 6.5.6, inclusive.
6.5.2 Fabrication—Gaskets shall be extruded or molded
8. Joints
and cured in such a manner that they will be dense and
8.1 Pipe units shall be manufactured with male- and female-
homogeneous at any cross section, and have uniform dimen-
type joints of such design that the rubber gasket applied thereto
sions. They shall be free from porosity, blisters, pitting, and
shall be the sole element depended upon to make the joints
other defects, which may affect their serviceability.
flexible and watertight.
6.5.3 Tolerances—Commercial tolerances A3-F3, T.032 for
8.2 The slope on the conic surfaces of the gasket seat on the
molded gaskets and A3-F3 for extruded gaskets in accordance
inside of the female portion and on the outside of the male
with the Rubber Handbook shall be permitted. The tolerances
portion shall be not more than 3.5° measured from a longitu-
in gasket and joint dimensions shall be such as not to exceed
dinal trace on the inside surface of the pipe. The female or the
permissible deformations prescribed in Section 8.
male portions, or both, shall form a proper gasket positioning
6.5.4 Physical Properties of Gaskets—The rubber from
area or “seat.” The joint design shall be such that, when the
which the gaskets are fabricated shall have the following
joint has been fully closed and is off center sufficiently to cause
physical properties:
the outer concrete surface of the male portion and the inner
Ultimate elongation at break, min, % 350
concrete surface of the female portion to come into contact at
Ultimate elongation at break after aging, 80
min, % of elongation before aging some place in the joint periphery, the deformation of the gasket
Hardness, International Rubber Hardness 40 to 60
adjacent to that point shall not exceed 50 % of the stretched
A
Degrees or Durometer
diameter for O-ring gaskets, or 75 % of the uncompressed
Compression set, max, % 25
Water absorption, % 10 radial thickness for all other types. At the diametrically
Ozone resistance no cracks in accordance
opposite side, the gasket deformation shall be not less than
with Test Method D 1149
15 % of the stretched diameter for O-ring gaskets, or 25 % of
A
Allowable variation 65 from manufacturer’s specified hardness.
the uncompressed radial thickness for all other types. O-ring
6.5.4.1 Testing shall be in accordance with Section 9.
gaskets are defined as solid gaskets of circular cross section.
6.5.5 Strength of Splice—If a splice is used in the manufac-
Stretched gasket diameters shall be calculated as being
ture of the gasket, the strength shall be such that the gasket
1/ 1 1 x! times the original gasket diameter where x equals
= ~
shall withstand 100 % elongation over the part of the gasket
the percent of gasket stretch divided by 100.
that includes the splice with no visible separation of the splice.
8.3 The joint design shall provide for the deflection of each
pipe unit by opening one side of the outside perimeter of the
6 joint, wider than the fully closed position, a distance no less
Available from the Rubber Manufacturers Assn., Inc., 444 Madison Ave., New
York, NY 10022. than ⁄2 in. or 25 % of the wall thickness, whichever is less,
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C 505
without reducing its watertightness. mutually agreed upon between the manufacturer and the
8.4 The joint shall be of such design that it will withstand, owner, other types of bearings such as hard rubber blocks or
without cracking or fracturing, the forces caused by the sand-filled, high-pressure hose may be used.
compression of the gasket, and the required hydrostatic test
10.3.1 Sand or other loose fine material may be spread along
pressure.
the length of the crown of the pipe to equalize the upper
8.5 All surfaces of the joint upon or against which the
bearing. Pipe having exterior surface irregularities may have
gasket may bear shall be smooth, free of spall, cracks, or
the depressions filled with plaster of paris to equalize the
fractures, and imperfections that would adversely affect per-
bearing surfaces.
formance.
10.3.2 The load shall be applied continuously until the
8.6 Alternative Joint Designs—If permitted by the owner,
strength specified in Table 1 is reached. The pipe shall not be
manufacturers may submit to the owner, detailed designs for
allowed to stand under load longer than is required to apply the
joints and gaskets other than those described in 8.2, 8.3, 8.4,
load and to observe and record it. The pipe shall be surface dry
and 8.5. Design submissions shall include joint geometry
when tested. Tests shall not be made on frozen pipe.
tolerances, gasket characteristics, proposed plant tests, gasket
10.4 Hydrostatic Test Requirements—Maximum hydrostatic
splice bend tests, and such other information as required by the
test pressures shall be as given in Table 1, and shall be made in
owner to evaluate the joint design for field performance. Joints
accordance with 10.7. There shall be no leakage of pipe or
and gaskets of alternative joint designs shall meet all test
joints at one third of this pressure when pipes are in straight
requirements of this specification unless waived by the owner.
alignment or in maximum deflected position. Moisture appear-
Alternative joint designs shall be acceptable provided the
ing on the surface of the pipe in the form of patches, or beads,
designs are approved by the owner prior to manufacture and
adhering to the surface, will not be considered as leakage. In
provided the test pipe comply with the specified test.
event the pipe is tested dry, slow-forming beads of water that
result in minor dripping, and slight pinhole spurts that can be
9. Concrete Mixture
proven to seal and dry up within 1 week when kept continu-
9.1 The aggregates shall be sized, graded, proportioned, and
ously under the prescribed 10-min test pressure will be
thoroughly mixed with such proportions of cementitious ma-
considered acceptable.
terials and water as will produce a homogeneous concrete
10.5 Rubber Gasket Compound Tests:
mixture of such quality that the pipe will conform to the test
10.5.1 General—Laboratory tests to determine the physical
and design requirements of this specification. Cementitious
properties of the rubber gaskets to be furnished under this
materials shall be as specified in 6.2 and shall be added to the
specification shall be performed on test specimens taken from
mix in a proportion not less than 470 lb/yd , unless mix designs
the finished rubber product, except that at the option of the pipe
with a lower cementitious materials content demonstrate that
manufacturer specimens may be furnished in accordance with
the quality and performance of the pipe meet the requirements
the appropriate ASTM method or specification.
of this specification.
10.5.2 Tensile Strength and Elongation—Test Methods
D 412.
10. Physical Requirements
10.5.3 Aging—Test Method D 573, aged for 96 h at 158°F.
10.1 Test Specimens:
10.5.4 Hardness—Test Method D 1415 or Test Method
10.1.1 Specimens for test shall be full-size pipe units and
D 2240.
gaskets that conform in every respect to the inspection require-
10.5.5 Compression Set—Method B of Test Methods D 395,
ments of this specification, shall be selected at random by the
22hat158 6 2°F.
owner at the place of manufacture of the pipe, and
...