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Significance and Use
5.1 The performance under bending and compression load of a thermoplastic plastic pipe wall design obtained by this method can be used for the following:
5.1.1 To determine the stiffness of the pipe wall section. This is a function of the pipe dimensions, the wall design, the arc length tested, and the physical properties of the material of which the pipe is made.
5.1.2 To compare the characteristics of various thermoplastic pipe wall designs.
5.1.3 To compare the characteristics of various plastics in pipe form.
5.1.4 To study the interrelations of dimensions, materials, and deformation properties of thermoplastic pipe designs.
5.1.5 To measure the deformation and load-resistance at any of several significant events which may occur during the test.
5.1.6 To provide a reasonable quality control/quality assurance test for very large diameter plastic pipes.
5.2 The time-dependent pipe wall stiffness of a thermoplastic pipe obtained by this test method may used for the following:
5.2.1 To predict the residual stiffness of the pipe wall in bending and compression at all times after initial loading.
5.2.2 For purposes of design, to determine a modulus of relaxation under sustained loads.
5.2.3 To quantify the influence of material formulations of thermoplastics on the modulus of relaxation.
5.2.4 To study the influence of geometric patterns of wall profiles on the modulus of relaxation.
5.3 The time-independent reduction of wall thickness at springline may be used for the following:
5.3.1 For pipe wall stiffness, to quantify the efficiency of all wall profiles of any material composition and a given geometry with that of a solid uniform thickness wall.
1.1 This test method covers the determination of the load-deflection behavior of thermoplastic pipe wall sections under parallel plate loading conditions.
1.2 This test method covers a loading test for determining the wall stiffness of a thermoplastic-pipe wall under a combined load of bending and compression. Changes in pipe wall profile geometry under load may also be determined.
1.3 This test method covers thermoplastic pipe.
1.4 The characteristics determined by this test method are wall stiffness and changes in profile wall dimensions at specific deformations.
1.5 The characteristics determined by this test method are wall stiffness, profile wall efficiency, and for some wall elements stability at specific Strain levels.
1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.7 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.
1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D618 Practice for Conditioning Plastics for Testing
D695 Test Method for Compressive Properties of Rigid Plastics
D883 Terminology Relating to Plastics
D1600 Terminology for Abbreviated Terms Relating to Plastics
D2122 Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
D2412 Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading
F412 Terminology Relating to Plastic Piping Systems
AASHTO StandardsM 252 Standard Specification for Corrugated Polyethylene Drainage Pipe Available from American Association of State Highway and Transportation Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001, http://www.transportation.org. M 294 Standard Specification for Corrugated Polyethylene Pipe, 300- to 1500-mm Diameter
ICS Number Code 23.040.20 (Plastic pipes)
UNSPSC Code 40171500(Commercial pipe and piping)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM F2433-05(2013), Standard Test Method for Determining Thermoplastic Pipe Wall Stiffness, ASTM International, West Conshohocken, PA, 2013, www.astm.orgBack to Top