ASTM D5361-00
(Practice)Standard Practice for Sampling Compacted Bituminous Mixtures for Laboratory Testing
Standard Practice for Sampling Compacted Bituminous Mixtures for Laboratory Testing
SCOPE
1.1 This practice describes a procedure for removal of a sample of compacted bituminous mixture from a pavement for laboratory testing.
1.2 The values given in inch-pound units are to be regarded as the standard. The SI units given in parentheses are 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:D5361–00
Standard Practice for
Sampling Compacted Bituminous Mixtures for Laboratory
Testing
This standard is issued under the fixed designation D 5361; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 4.4 A source of cooling water, dry ice, liquid nitrogen, or
other cooling material is normally required but in some cases
1.1 This practice describes a procedure for removal of a
may be omitted when only a single sample is to be secured.At
sample of compacted bituminous mixture from a pavement for
any time there is evidence of damage to the edge of the sample
laboratory testing.
due to the generation of heat caused by friction, a cooling
1.2 The values stated in SI units are to be regarded as the
material shall be applied to the cutting tool or to the pavement
standard. The values given in parentheses are for information
surface to minimize sample distortion or other damage.
only.
4.5 A device (core debonder) for separating core samples
1.3 This standard does not purport to address all of the
from underlying layers may be used. If such device is em-
safety concerns, if any, associated with its use. It is the
ployed, it shall be a metal semicircle with an inside radius
responsibility of the user of this standard to establish appro-
equal to the outside radius of the core and shall have a rigidly
priate safety and health practices and determine the applica-
attached handle.Asplit core barrel of the required radius cut in
bility of regulatory limitations prior to use.
half vertically and welded to a strap iron handle is suitable for
2. Referenced Documents this purpose. (See Fig. 1.)
2.1 ASTM Standards:
NOTE 1—Differences in manufacturers’ tolerances of core barrels’
D 979 Practice for Sampling Bituminous Paving Mixtures
diameters and thicknesses may result in a particular barrel not fitting into
the kerf. In such cases, other means may have to be used for debonding.
3. Significance and Use
4.6 A lifting device (core lifter) for removing core samples
3.1 Samples obtained in accordance with the procedure
from holes will preserve the integrity of the core. The device
given in this practice may be used to measure pavement
shall be a steel rod of suitable length and with a diameter that
thickness, density, resilient or dynamic modulus, tensile
will fit into the space between the core and the pavement
strength, Marshall or Hveem stability, or for extraction testing,
material. There shall be a 90° bend at the top to form a handle
to determine asphalt content, asphalt properties and mix
and a 90° bend at the bottom, approximately 50 mm (2 in.)
gradation.
long, to form the lifter.
4. Apparatus
5. Sampling
4.1 To minimize distortion of the compacted bituminous
5.1 Take samples in accordance with the provisions of
course(s), power equipment shall be used to secure the sample.
Practice D 979. Random sampling procedures must be fol-
The equipment may be either a core drill or power saw.
lowed when samples obtained will be used in conducting
4.2 Thecuttingedgeofthecoredrillbitshallbeofhardened
quality control/quality assurance tests.
steel or other suitable material with diamond chips embedded
5.2 The sampling plan must include a clear definition as to
in the metal cutting edge.
whether samples can be taken adjacent to the pavement edge or
4.3 Saw blades used in a power saw shall be either a
construction joints where density may be slightly lower than in
hardened metal blade with diamond chips embedded or an
the main portion of the paving lane.
abrasive blade such as carborundum or similar material.
5.3 Variations in the pavement condition that can be de-
tected by visual inspection may dictate that samples be taken
from areas so identified, apart from the random sampling plan.
This practice is under the jurisdiction of ASTM Committee D04 on Road and
However, non-random samples violate the principles behind
Paving Materials and is the direct responsibility of Subcommittee D04.30 on
Methods of Sampling. statistically based quality control/quality assurance testing
Current edition approved Jan. 10, 2000. Published April 2000. Originally
programs. Samples obtained using non-random procedures
published as D 5361 – 93. Last previous edition D 5361 – 95.
Annual Book of ASTM Standards, Vol 04.03.
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D5361
with the top and bottom perpendicular to the axis. T
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