ASTM D6140-22

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Designation: D6140 − 00 (Reapproved 2014) D6140 − 22
Standard Test Method to
Determine Asphalt Retention of Paving Fabrics Used in
Asphalt Paving for Full-Width Applications
This standard is issued under the fixed designation D6140; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method is an index test that covers a procedure for determining the asphalt retention for paving fabrics. Paving fabrics
are used in a fabric membrane interlayer system in pavements before the placement of an asphaltic overlay.
1.2 This test method shows the values in both SI units and inch-pound units. SI Unitsunits is the name for the system of metric
units known as the International System of Units. Inch-pound units is the correct name for the customary units used in the United
States. The values in inch-pound units are provided for information only.
1.3 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
D123 Terminology Relating to Textiles
D3381/D3381M Specification for Viscosity-Graded Asphalt Binder for Use in Pavement Construction
D4439 Terminology for Geosynthetics
D4632/D4632M Test Method for Grab Breaking Load and Elongation of Geotextiles
3. Terminology
3.1 Definitions:
3.1.1 asphalt retention, n—the volume of asphalt cement retained by paving fabrics per unit area of specimen after submersion
in asphalt cement.
3.1.2 atmosphere for testing geotextiles, n—air maintained at a relative humidity of 50 to 70 % and a temperature of 21 6 2°C2 °C
(70 6 4°F).4 °F).
This test method is under the jurisdiction of ASTM Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.03 on Permeability and
Filtration.
Current edition approved Jan. 1, 2014Dec. 1, 2022. Published January 2014December 2022. Originally approved in 1997. Last previous edition approved in 20092014
as D6140–00(2009).D6140 – 00 (2014). DOI: 10.1520/D6140-00R14.10.1520/D6140-22.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
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D6140 − 22
3.1.3 paving fabrics, n—geotextile used for paving applications.
3.2 For definitions of other terms relating to geotextiles, refer to Terminology D4439. For definitions of other terms relating to
textiles, refer to Terminology D123.
4. Summary of Test Method
4.1 Test specimens are individually weighed prior to being submerged in an asphalt cement that will be used for the overlay. The
asphalt cement is maintained at a specified temperature. After submerging the specimens in the asphalt cement test, the specimens
are hung to drain in the oven for a specified period of time at the same oven temperature.
4.2 Upon completion of specimen submersion in asphalt, and draining, the individual specimens are weighed and asphalt retention
is determined.
5. Significance and Use
5.1 The asphalt retention is a test procedure for full-width paving fabrics. The use of this test method is to establish an index value
by providing standard criteria and a basis for uniform reporting.
5.2 This procedure is applicable for testing conditioned specimens (see 8.1). The results obtained may vary, depending on which
type of asphalt cement is used for the test. Unless stated otherwise, use A.C. 20 Grade PG 64-22 as defined in Specification
D3381/D3381M or equivalent asphalt cement.
5.3 This procedure is applicable whenever it is desired to determine an index asphalt retention of paving fabric.
5.4 If it becomes necessary for the purchaser and the seller to use this test method for acceptance testing, the statistical bias, if
any, between the purchaser’s and seller’s laboratories should be determined. Such comparison is to be based on specimens
randomly drawn from the sample of geotextile being evaluated.
6. Apparatus and Asphalt Cement
6.1 Scale or Balance, Scale or Balance,with a capacity and sensitivity sufficient to weigh the specimens to within 60.1 g. The
accuracy of the scale should be certified by a recognized authority.
6.2 Cutting Die or Cutting Template, Cutting Die or Cutting Template,measuring 100 by 200 mm 200 mm (4 by 8 in.) with a
tolerance of 61 mm ( ⁄16 in.) in each linear dimension.
6.3 Mechanical Convection Oven, Mechanical Convection Oven,capable of maintaining the required test temperature within
62°C (4°F).62 °C (4 °F).
6.4 Asphalt Cement, Asphalt Cement,viscosity Grade A.C.20, PG 64-22 or equivalent, as recommended by the specifying agency.
6.4.1 Asphalt cement should not be used for more than three series of tests. Repeated heating and cooling may change the test
results due to handling of the asphalt.
NOTE 1—Repeated heating and cooling of the asphalt can change the viscosity of the asphalt and lead to higher values of asphalt retention. If an increasing
trend in asphalt retention values is observed, the asphalt cement should be changed.
7. Sampling and Test Specimens
7.1 As a lot sample for acceptance testing, take at random the number of rolls of fabric directed in an applicable material
specification or other agreement between the purchaser and the supplier. Consider rolls of fabric to be the primary sampling units.
If the specification requires sampling during manufacture, select the rolls for the lot sample at uniformly spaced time intervals
throughout the production period.
D6140 − 22
7.2 Take for the laboratory sample, a sample extending the full width of the fabric of sufficient length along the selvage from each
sample roll such that the requirements of 8.1 are met. The sample shall exclude material from the outer wrap of the roll or the inner
wrap around the core unless the sample is taken at the production site, at w
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