ASTM D3549/D3549M-11

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of the standard as published by ASTM is to be considered the official document.
Designation:D3549–03 Designation:D3549/D3549M–11
Standard Test Method for
Thickness or Height of Compacted Bituminous Paving
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Mixture Specimens
This standard is issued under the fixed designation D3549/D3549M; 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 covers determination of the thickness (or height) of compacted bituminous paving mixture specimens.
1.2 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated
in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values
from the two systems may result in non-conformance with the standard.
1.2.1 Section 6.4 specifies SI units because they are the units used in the equations forASTM D 1188 and D 2726. Performing
calculations without first converting any measurements made in inch-pound units to SI units in Section 6.4 will result in
non-conformance with the standard.
1.3 This standard does not purport to address all of the safety problems, 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
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2.1 ASTM Standards:
D1188 Test Method for Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Coated Samples
D2726 Test Method for Bulk Specific Gravity and Density of Non-Absorptive Compacted Bituminous Mixtures
D3203Test Method for Percent Air Voids in Compacted Dense and Open Bituminous Paving Mixtures
D3666 Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
3. Significance and Use
3.1 The thickness of a compacted bituminous paving mixture is often used as a construction check to insureensure that the
properquantityofmaterialshasbeenplacedonaprojectandtocorrectstrengthmeasurementonconstantdiameterspecimenswith
varying heights.
NOTE1—The equipment and personnel performing this test method can be evaluated by Practice 1—The text of this test method references notes and
footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements
of the test method.
NOTE 2—The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the
capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Standard Practice D3666 . are generally considered
capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Practice D3666 alone does
not completely assure reliable results. Reliable results depend on many factors; following the suggestions of Practice D3666 or some similar acceptable
guideline provides a means of evaluating and controlling some of those factors.
4. Apparatus
4.1 Anyofthefollowingapparatusmaybeusedtomeasurethethicknessoftestspecimens:Anyofthefollowingapparatusmay
be used to measure the dimensions of test specimens to the nearest 0.1 cm [1/16 in.]:
NOTE2—In addition to direct measurement, the thickness of test specimens may be determined as described in 6.3. 3—The specifying agency may
establish alternate unit requirements for measurement.
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This test method is under the jurisdiction ofASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.21 on Specific
Gravity and Density of Bituminous Mixtures.
Current edition approved July 10, 2003. Published September 2003. Originally approved in 1977. Last previous edition approved in 2000 as D3549–93a(2000). DOI:
10.1520/D3549-03.
Current edition approved Dec. 1, 2011. Published December 2011. Originally approved in 1977. Last previous edition approved in 2003 as D3549 – 93a 03. DOI:
10.1520/D3549_D3459M-11.
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