Standard Practice for
Preparation of Bituminous Mixture Beam Specimens by
Means of the California Kneading Compactor1
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
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.
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.
2. Referenced Documents
2.1 ASTM Standards:D 1561 Practice for Preparation of Bituminous Mixture Test
Specimens by Means of California Kneading Compactor2
3. Significance and Use
3.1 This practice provides a standard method for compaction useful to practitioners and researchers engaged in testing
and evaluation of bituminous mixtures using beam form
specimens.
4. Apparatus
4.1 California Kneading Compactor, mechanical, in accordance with Practice D 1561.
4.2 Compactor Foot— A ram 2.0 by 3.0 in. (50.8 by 76.2
mm).
4.3 Rod—A round-nose steel rod, 3⁄8-in. (9.5-mm) in diameter by 16-in. (406.4-mm) long.
4.4 Mold—A beam mold with inside dimensions 15 in. (381
mm) long by 31⁄4 in. (82.6 mm) wide and 41⁄2 in. (114.3 mm)
high as shown in Fig. 1.
4.5 Leveling Bar— A steel bar 14.94 in. (379.5 mm) long by
3.19 in. (81.0 mm) wide by 1.00 in. (25.4 mm) deep, stiffened
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