ASTM D3202-94(2004)
(Practice)Standard Practice for Preparation of Bituminous Mixture Beam Specimens by Means of the California Kneading Compactor
Standard Practice for Preparation of Bituminous Mixture Beam Specimens by Means of the California Kneading Compactor
SCOPE
1.1 This practice covers the preparation of beams of bituminous paving mixtures by means of a mechanical compactor that imparts a kneading action compacting the beam by a series of individual impressions made with a ram.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information 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.
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Designation:D3202–94 (Reapproved 2004)
Standard Practice for
Preparation of Bituminous Mixture Beam Specimens by
Means of the California Kneading Compactor
This standard is issued under the fixed designation D 3202; 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 Mold—Abeam mold with inside dimensions 15 in. (381
1 1
mm) long by 3 ⁄4 in. (82.6 mm) wide and 4 ⁄2 in. (114.3 mm)
1.1 This practice covers the preparation of beams of bitu-
high as shown in Fig. 1.
minous paving mixtures by means of a mechanical compactor
4.5 LevelingBar—Asteelbar14.94in.(379.5mm)longby
that imparts a kneading action compacting the beam by a series
3.19 in. (81.0 mm) wide by 1.00 in. (25.4 mm) deep, stiffened
of individual impressions made with a ram.
by a beveled-ended spline 12.94 in. (328.6 mm) long by 1.00
1.2 The values stated in inch-pound units are to be regarded
in. wide by 1.00 in. deep, centered on and welded to the top of
as the standard. The values given in parentheses are for
the bar; or a solid steel bar of equal length and width having
information only.
depth sufficient to provide at least equal stiffness as determined
1.3 This standard does not purport to address all of the
by the moment of inertia about the neutral axis.
safety concerns, if any, associated with its use. It is the
4.6 Sliding Base Assembly—An assembly attached to the
responsibility of the user of this standard to establish appro-
kneading compactor with a hand wheel or other means for
priate safety and health practices and determine the applica-
moving the mold laterally during compaction.
bility of regulatory limitations prior to use.
4.7 Extraction Assembly—A beam specimen extraction as-
2. Referenced Documents
sembly as shown in Fig. 2.
2.1 ASTM Standards:
NOTE 1—Copies of working drawing of the mold, sliding base assem-
D 1561 PracticeforPreparationofBituminousMixtureTest
bly, leveling bar and extraction assembly suitable for construction of these
pieces of apparatus are available as adjunct material.
Specimens by Means of California Kneading Compactor
4.8 Paper, heavy sheets, 3.25 by 15 in. (82.6 by 381 mm).
3. Significance and Use
4.9 Ovens, electric, capable of maintaining temperatures of
3.1 This practice provides a standard method for compac-
200 to 325 6 5°F (93.3 to 162.8 6 2.8°C).
tion useful to practitioners and researchers engaged in testing
4.10 Testing Machine, compression, having a minimum
and evaluation of bituminous mixtures using beam form
capacity of 50 000 lbf (222 kN).
specimens.
4.11 Balance, having a capacity of 5 kg or more and
sensitive to 1.0 g or less.
4. Apparatus
4.12 Miscellaneous Apparatus—Thermometer, spatulas,
4.1 California Kneading Compactor, mechanical, in accor-
spoons, gloves, metal pans, and mechanical mixer.
dance with Practice D 1561.
4.2 Compactor Foot—A ram 2.0 by 3.0 in. (50.8 by 76.2 5. Test Specimens
mm).
5.1 Preparation of Mixture—Prepare approximately 6800 g
4.3 Rod—A round-nose steel rod, ⁄8-in. (9.5-mm) in diam-
of the bituminous mixture in accordance with 5.1 and 5.2 of
eter by 16-in. (406.4-mm) long.
Practice D 1561 except for specific requirements given in 5.2
and 6 of this practice.
5.2 Size of Specimens—The beam test specimens shall have
This recommended practice is under the jurisdiction ofASTM Committee D04
1 1
arectangularcrosssectionof3 ⁄4in.(82.6mm)inwidthby3 ⁄2
on Road and Paving Materials and is the direct responsibility of Subcommittee
D04.20 on Mechanical Tests of Bituminous Mixtures.
in. (88.9 mm) in depth and a length of 15 in. (381 mm).
Current edition approved Dec. 1, 2004. Published December 2004. Originally
approved in 1973. Last previous edition approved in 2000 as D 3202 – 94 (2000).
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 Drawings are available at a nominal charge from ASTM Headquarters, 100
the ASTM website. Barr Harbor Drive, West Conshohocken. Request Adjunct No. ADJD3202.
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D3202–94 (2004)
6. Procedure further increase the number of tamps at 300 psi (2070 kPa).
The exact number of increased tamps depends on
...
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