ASTM D4125-05

Standard Test Methods for Asphalt Content of Bituminous Mixtures by the Nuclear Method

SIGNIFICANCE AND USE
These test methods are useful as a rapid, nondestructive technique for determination of asphalt content of bituminous mixtures.
These test methods are suitable for quality control and acceptance testing for construction and for research and development applications. The test method is used for determination of asphalt content only as it does not provide extracted aggregate for gradation analysis.
The non-destructive nature of the test allows repetitive measurements to be made on a single test sample for statistical analysis of test data.
These test methods determine the asphalt content of a test sample by comparing the measured asphalt content with previously established calibration data.
3.4.1 The asphalt content of a material expressed as a percentage, is the ratio of the mass of asphalt in a given mass of material to the total mass of the sample or to the mass of the solid material particles.
SCOPE
1.1 These test methods cover the procedures for determining the asphalt content of samples of uncompacted bituminous mixtures (Test Method A), and of laboratory compacted specimens of bituminous mixtures (Test Method B) by examining a test sample with an apparatus that utilizes neutron thermalization techniques.
1.2 The values expressed in SI units are regarded as the standard. The inch-pounds equivalents may be approximate.
1.3 A precision and bias statement for Method B in this standard has not been developed at this time. Therefore, Method B should not be used for acceptance or rejection of a material for purchasing purposes.
1.4 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. See Section 6 and 8.4.2, 8.5.6, and Note 4, for specific hazards.

General Information

• Status: Historical
• Publication Date: 31-May-2005
• ICS: 93.080.20 - Road construction materials
• Technical Committee: D04 - Road and Paving Materials
• Drafting Committee: D04.25 - Analysis of Asphalt Mixtures

Relations

• Replaces: ASTM D4125-94(2000) - Standard Test Methods for Asphalt Content of Bituminous Mixtures by the Nuclear Method
• Effective Date: 01-Jun-2005
• Replaced By: ASTM D4125/D4125M-10 - Standard Test Methods for Asphalt Content of Bituminous Mixtures by the Nuclear Method
• Effective Date: 01-Dec-2010
• Referred By: ASTM D4469-17 - Standard Practice for Calculating Percent Asphalt Absorption by the Aggregate in Asphalt Mixtures
• Effective Date: 01-Jun-2005

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D4125–05
Standard Test Methods for
Asphalt Content of Bituminous Mixtures by the Nuclear
1
Method
This standard is issued under the fixed designation D4125; 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.
3
1. Scope Bituminous Mixtures Using Marshall Apparatus
D1561 Practice for Preparation of Bituminous Mixture Test
1.1 These test methods cover the procedures for determin-
Specimens by Means of California Kneading Compactor
ing the asphalt content of samples of uncompacted bituminous
D3387 TestMethodforCompactionandShearPropertiesof
mixtures (Test Method A), and of laboratory compacted
Bituminous Mixtures by Means of the U.S. Corps of
specimens of bituminous mixtures (Test Method B) by exam-
Engineers Gyratory Testing Machine (GTM)
ining a test sample with an apparatus that utilizes neutron
D4013 Practice for Preparation of Test Specimens of Bitu-
thermalization techniques.
minous Mixtures by Means of Gyratory Shear Compactor
1.2 The values expressed in SI units are regarded as the
standard. The inch-pounds equivalents may be approximate.
3. Significance and Use
1.3 A precision and bias statement for Method B in this
3.1 These test methods are useful as a rapid, nondestructive
standard has not been developed at this time. Therefore,
technique for determination of asphalt content of bituminous
Method B should not be used for acceptance or rejection of a
mixtures.
material for purchasing purposes.
3.2 These test methods are suitable for quality control and
1.4 This standard does not purport to address all of the
acceptance testing for construction and for research and
safety concerns, if any, associated with its use. It is the
development applications. The test method is used for deter-
responsibility of the user of this standard to establish appro-
mination of asphalt content only as it does not provide
priate safety and health practices and determine the applica-
extracted aggregate for gradation analysis.
bility of regulatory limitations prior to use. See Section 6 and
3.3 The non-destructive nature of the test allows repetitive
8.4.2, 8.5.6, and Note 4, for specific hazards.
measurements to be made on a single test sample for statistical
2. Referenced Documents analysis of test data.
2 3.4 These test methods determine the asphalt content of a
2.1 ASTM Standards:
test sample by comparing the measured asphalt content with
C670 Practice for Preparing Precision and Bias Statements
previously established calibration data.
for Test Methods for Construction Materials
3.4.1 The asphalt content of a material expressed as a
D75 Practice for Sampling Aggregates
percentage, is the ratio of the mass of asphalt in a given mass
D140 Practice for Sampling Bituminous Materials
of material to the total mass of the sample or to the mass of the
D979 Practice for Sampling Bituminous Paving Mixtures
solid material particles.
D1461 Test Method for Moisture or Volatile Distillates in
Bituminous Paving Mixtures
4. Interferences
D1559 Test Method for Resistance to Plastic Flow of
4.1 The fundamental assumptions inherent in this test
method are that the material under test is homogeneous and
that hydrogen present is in the form of asphalt or has been
1
These test methods are under the jurisdiction of ASTM Committee D04 on
otherwise accounted for in the calibration process.
Road and Paving Materials and is the direct responsibility of Subcommittee D04.25
4.2 Accurate results will be dependent upon proper calibra-
on Analysis of Bituminous Mixtures.
tion of the apparatus to the material being tested.
CurrenteditionapprovedJune1,2005.PublishedJuly2005.Originallyapproved
in 1983. Last previous edition approved in 2000 as D4125 – 94 (2000). DOI: 4.3 Thisapparatusmeasuresthetotalamountofhydrogenin
10.1520/D4125-05.
the sample including hydrogen present in the form of water.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
3
the ASTM website. Withdrawn.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D4125–05
Unlessthetestsampleisfreeofwater,suchpercentagemustbe
determined in accordance with the provisions of Test Method
D1461 and the percentage determined subtracted from the
asphalt percentage as measured by the apparatus.
4.3.1 Alternatively, the sample may be dried to a constant
mass in an oven at 110 6 5°C (230 6
...