ASTM D5148-10

Standard Test Method for Centrifuge Kerosine Equivalent (Withdrawn 2018)

SIGNIFICANCE AND USE
The CKE furnishes an index, designated as the K factor, that indicates the aggregate particle roughness and surface capacity based on porosity.
The CKE is used as part of the Hveem mix design procedure to determine the approximate bitumen ratio (ABR), as shown in Appendix X1. However, there are other applications such as determining the coarse aggregate fraction constant (Kc) for use as an aid in selecting a bitumen content for open-graded friction courses.
Note 2—The quality of the results produced by this standard are dependant upon the competence of the personnel performing the procedure and the capability, calibration, and the maintenance of the equipment used. Agencies that meet the criteria of Standard Practice are generally considered capable of competent and objective testing / sampling / inspection / etc. Users of this standard are cautioned that compliance with alone does not completely assure reliable results. Reliable results depend on many factors: following the suggestions of or similar acceptable guideline provides a means of evaluating and controlling some of those factors.
SCOPE
1.1 This test method determines the centrifuge kerosine equivalent (CKE) of aggregate used in bituminous mixtures.
1.2 Units of Measure:  
1.2.1 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. An exception is made in the values used for mass because this standard was originally developed using even values of grams, and use of ounces as a standard would make those measures cumbersome.
1.2.2 Regarding sieves, per ASTM Specification E11 Section 1.2, “the values stated in SI units shall be considered standard for the dimensions of the wire cloth openings and the diameter of the wires used in the wire cloth. The values stated in inchpound units shall be considered standard with regard to the sieve frames.” When sieve mesh sizes are referenced, the alternate inch-pound designations are provided for information purposes and enclosed in parentheses.
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. For specific hazard statements, see 7.1.
WITHDRAWN RATIONALE
This test method determined the centrifuge kerosine equivalent (CKE) of aggregate used in bituminous mixtures.
Formerly under the jurisdiction of Committee D04 on Road and Paving Materials, this test method was withdrawn in July 2018. This standard is being withdrawn without replacement due to its limited use by industry.

General Information

• Status: Withdrawn
• Publication Date: 30-Nov-2010
• Withdrawal Date: 04-Jul-2018
• ICS: 75.160.20 - Liquid fuels
• Technical Committee: D04 - Road and Paving Materials
• Drafting Committee: D04.51 - Aggregate Tests

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: D5148 − 10
Standard Test Method for
1
Centrifuge Kerosine Equivalent
This standard is issued under the fixed designation D5148; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope C702PracticeforReducingSamplesofAggregatetoTesting
Size
1.1 This test method determines the centrifuge kerosine
D75Practice for Sampling Aggregates
equivalent (CKE) of aggregate used in bituminous mixtures.
D3666Specification for Minimum Requirements for Agen-
1.2 Units of Measure:
cies Testing and Inspecting Road and Paving Materials
1.2.1 The values stated in inch-pound units are to be
D4753Guide for Evaluating, Selecting, and Specifying Bal-
regarded as standard. The values given in parentheses are
ances and Standard Masses for Use in Soil, Rock, and
mathematical conversions to SI units that are provided for
Construction Materials Testing
information only and are not considered standard. An excep-
E11Specification forWovenWireTest Sieve Cloth andTest
tion is made in the values used for mass because this standard
Sieves
was originally developed using even values of grams, and use
E832Specification for Laboratory Filter Papers
of ounces as a standard would make those measures cumber-
some.
3. Terminology
1.2.2 Regarding sieves, per ASTM Specification E11 Sec-
tion 1.2, “the values stated in SI units shall be considered
3.1 Symbols:
standard for the dimensions of the wire cloth openings and the
3.1.1 C—coarse aggregate fraction, that portion of the
diameter of the wires used in the wire cloth. The values stated
3
sample which passes the 9.5 mm ( ⁄8 in.) sieve and is retained
in inchpound units shall be considered standard with regard to
on the 4.75 mm (No. 4) sieve.
the sieve frames.” When sieve mesh sizes are referenced, the
3.1.2 F—fine aggregate fraction, that portion of the sample
alternateinch-pounddesignationsareprovidedforinformation
which passes the 4.75 mm (No. 4) sieve.
purposes and enclosed in parentheses.
2 2
1.3 This standard does not purport to address all of the
3.1.3 SA—surfacearea.Thesum,ft /lb(m /kg),obtainedby
safety concerns, if any, associated with its use. It is the
adding the products of the percent passing each sieve and its
responsibility of the user of this standard to establish appro-
corresponding factor, (see 11.1) and dividing by 100.
priate safety and health practices and determine the applica-
3.1.4 K factors—values determined as described in 3.1.5
bility of regulatory limitations prior to use. For specific hazard
through 3.1.8 and identified as K , K,or K .
c f m
statements, see 7.1.
3.1.5 K —determined from the percent of SAE No. 10 oil
c
2. Referenced Documents
retained, which represents the total effect of the aggregate’s
2
2.1 ASTM Standards: absorptive properties and surface roughness of the aggregates
C127Test Method for Relative Density (Specific Gravity) coarse fraction.
and Absorption of Coarse Aggregate
NOTE 1—Based on comparative testing in California, the same results
C128Test Method for Relative Density (Specific Gravity)
can be obtained substituting Shell Tellus No. 100 oil for SAE No. 10 oil.
and Absorption of Fine Aggregate
3.1.6 K —determined from the following factors:
f
3.1.7 Percentofkerosineretained,whichrepresentsthetotal
1
This test method is under the jurisdiction of ASTM Committee D04 on Road
effect of superficial area, the aggregate’s absorptive properties
and Paving Materials and is the direct responsibility of Subcommittee D04.51 on
and surface roughness of the aggregate’s fine fraction.
Aggregate Tests.
Current edition approved Dec. 1, 2010. Published March 2011. Originally
3.1.7.1 Computed surface area, based on particle size.
published as D5148 – 90. Last previous edition published 2002 as
3.1.7.2 Percentofaggregatepassing4.75mm(No.4)sieve.
D5148–95(2002). DOI: 10.1520/D5148-10.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.1.8 K —the “mean” or composite value of K for a given
m
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
combination of coarse and fine materials on which K and K
Standards volume information, refer to the standard’s Document Summary page on c f
the ASTM website. have already been determined independently.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D5148 − 10
4. Significance and Use
Therequiredr/min 610 ofthecentrifugehead 5 = 14,000,000/r
~ ! ~ !
r 5 radiustocenterofgravityofsample,in.
4.1 TheCKEfurnishesanindex,designatedasthe Kfactor,
r 5 radiustoce
...