ASTM D979-01(2006)e1
(Practice)Standard Practice for Sampling Bituminous Paving Mixtures
Standard Practice for Sampling Bituminous Paving Mixtures
SIGNIFICANCE AND USE
General:
4.1.1 Sampling is equally as important as the testing, and the sampler shall take every precaution to obtain samples that will yield an acceptable estimate of the nature and conditions of the materials which they represent.
4.1.2 Samples for the development of preliminary data are obtained by the party responsible for the development of the data. Samples for control of the product at the source of manufacture or storage, or at the site of use, are obtained by the manufacturer, contractor, or other parties responsible for accomplishing the work. Samples for tests to be used in acceptance or rejection decisions by the purchaser are obtained by the purchaser or his authorized representative.
SCOPE
1.1 This practice covers sampling of bituminous paving mixtures at points of manufacture, storage, delivery, or in place.
1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are provided for information purposes only.
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.
General Information
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Standards Content (Sample)
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Designation:D979–01 (Reapproved 2006)
Standard Practice for
Sampling Bituminous Paving Mixtures
This standard is issued under the fixed designation D979; 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.
This standard has been approved for use by agencies of the Department of Defense.
´ NOTE—Changes were made editorially throughout the text in July 2006.
1. Scope 3.1.1 field sample, n—a quantity of the material to be tested
of sufficient size to provide an acceptable estimate of the
1.1 This practice covers sampling of bituminous paving
average quality of a unit.
mixtures at points of manufacture, storage, delivery, or in
3.1.2 increment, n—part of a sample.
place.
3.1.3 lot, n—a sizable isolated quantity of bulk material
1.2 The values stated in SI units are to be regarded as the
from a single source, assumed to have been produced by the
standard. The values in parentheses are provided for informa-
same process (for example, a day’s production or a specific
tion purposes only.
mass or volume).
1.3 This standard does not purport to address all of the
3.1.4 test portion, n—a quantity of the material of sufficient
safety concerns, if any, associated with its use. It is the
size extracted from the larger field sample by a procedure
responsibility of the user of this standard to establish appro-
designed to ensure accurate representation of the field sample,
priate safety and health practices and determine the applica-
and thus of the unit sampled.
bility of regulatory limitations prior to use.
3.1.5 unit, n—a batch or finite subdivision of a lot of bulk
2. Referenced Documents material (for example, a truck load or a specific area covered).
2.1 ASTM Standards:
4. Significance and Use
C702 Practice for Reducing Samples of Aggregate to Test-
4.1 General:
ing Size
4.1.1 Sampling is equally as important as the testing, and
D2234/D2234M Practice for Collection of a Gross Sample
the sampler shall take every precaution to obtain samples that
of Coal
will yield an acceptable estimate of the nature and conditions
D3665 Practice for Random Sampling of Construction Ma-
of the materials which they represent.
terials
4.1.2 Samples for the development of preliminary data are
E105 Practice for Probability Sampling Of Materials
obtained by the party responsible for the development of the
E122 Practice for Calculating Sample Size to Estimate,
data. Samples for control of the product at the source of
With Specified Precision, the Average for a Characteristic
manufactureorstorage,oratthesiteofuse,areobtainedbythe
of a Lot or Process
manufacturer, contractor, or other parties responsible for ac-
E141 Practice for Acceptance of Evidence Based on the
complishing the work. Samples for tests to be used in accep-
Results of Probability Sampling
tance or rejection decisions by the purchaser are obtained by
3. Terminology
the purchaser or his authorized representative.
3.1 Definitions of Terms Specific to This Standard:
5. Procedure
5.1 Inspection—The material shall be inspected to deter-
This practice is under the jurisdiction of ASTM Committee D04 on Road and mine discernible variations.The seller shall provide equipment
Paving Materials and are the direct responsibility of Subcommittee D04.30 on
needed for safe and appropriate inspection and sampling.
Methods of Sampling.
5.2 Sampling—The procedures for selecting locations or
Current edition approved July 1, 2006. Published July 2006. Originally approved
times for sampling are described in Practice D3665.
in 1948. Last previous edition approved in 2001 as D979 – 01. DOI: 10.1520/
D0979-01R06E01.
5.2.1 Sampling from a Conveyor Belt—Stop the conveyor
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
belt. Randomly select at least three areas of approximately
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
equal size on the belt for sampling. In each of the locations to
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. besampled,inserttemplates,theshapeofwhichconformtothe
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D979–01 (2006)
shape of the belt. From the selected areas obtain approximately sample and average the test results to determine the accept-
equal increments of material which will form a sample whose ability. Take all samples from the roadway for the full depth of
quantity equals or exceeds the minimum recommended in the material, taking care to exclude any underlying material.
5.3.2. Carefully scoop all material between templates into a Each increment shall be obtained by coring, sawing, or other
suitable container. methods in such a manner as to ensure a minimum disturbance
of the material.
5.2.2 Sampling from Truck Transports—By a random
5.2.7 Sampling from Bituminous Cold Mix Stockpiles—
method, select the units to be sampled from the production of
Cold mixes that are in a stockpile for some time may develop
materials delivered. Obtain at least three approximately equal
a crust on the surface of the pile. This crust should be removed
increments. Avoid sampling the extreme top surface. Select at
to a depth of 100 mm, over an area of one square meter, to
random from the unit being sampled and combine to form a
expose the unweathered mix. Stir the exposed stockpile and
field sample whose quantity equals or exceeds the minimum
obtain three approximately equal samples selected at random
recommended in 5.3.2. The sample may be obtained by
from the unit being sampled, and combine to form a field
collecting the increments with a scoop or shovel.
sample whose quantity equals or exceeds the minimum recom-
5.2.3 Sampling from the Roadway Prior to Compaction—
mended in 5.3.2.
When only one sample is to be taken, obtain at least three
5.2.7.1 When three or more samples are to be taken, sample
approximately equal increments, selected at random from the
in accordance with 5.2.3.1.
unit being sampled, and combine to form a field sample whose
5.3 Number and Quantities of Field Samples:
quantity equals or exceeds the minimum recommended in
5.3.1 The number of field samples (obtained by one of the
5.3.2.
methods described in 5.2) required depends on the criticality
5.2.3.1 When three or more samples are to be taken in order
of, and variation in, the properties to be measured. Designate
to evaluate a lot of material, utilize a random method to
each unit from which a field sample is to be obtained prior to
determine the locations to be sampled. Select a sample,
sampling. The number of field samples f
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