ASTM D139-95(2001)e1

Standard Test Method for Float Test for Bituminous Materials

SIGNIFICANCE AND USE
The float test characterizes the flow behavior or consistency of certain bituminous materials.
This test method is useful in determining the consistency of bitumen as one element in establishing the uniformity of certain shipments or sources of supply.
SCOPE
1.1 This test method covers the float test for bituminous materials.
1.2 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 a specific precaution statement, see 6.1
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

General Information

• Status: Historical
• Publication Date: 14-Feb-1995
• ICS: 91.100.50 - Binders. Sealing materials
• ICS: 93.080.20 - Road construction materials
• Technical Committee: D04 - Road and Paving Materials
• Drafting Committee: D04.44 - Rheological Tests

Relations

• Replaces: ASTM D139-95 - Standard Test Method for Float Test for Bituminous Materials
• Effective Date: 15-Feb-1995
• Replaced By: ASTM D139-07 - Standard Test Method for Float Test for Bituminous Materials
• Effective Date: 01-Dec-2007
• Referred By: ASTM D977-20 - Standard Specification for Emulsified Asphalt
• Effective Date: 15-Feb-1995
• Referred By: ASTM D244-09(2017) - Standard Test Methods and Practices for Emulsified Asphalts
• Effective Date: 15-Feb-1995
• Referred By: ASTM D3666-16 - Standard Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
• Effective Date: 15-Feb-1995

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
e1
Designation:D139–95 (Reapproved 2001)
Standard Test Method for
Float Test for Bituminous Materials
This standard is issued under the fixed designation D139; 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 (e) indicates an editorial change since the last revision or reapproval.
e NOTE—Editorial changes were made to Sections 2, 5.4.1, 7.4, and 7.7 January 2002.
1. Scope
1.1 This test method covers the float test for bituminous
materials.
1.2 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 appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For a specific
precaution statement, see 6.1.
1.3 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
only.
2. Referenced Documents
2.1 ASTM Standards:
C670 Practice for Preparing Precision and Bias Statements
for Test Methods for Construction Materials
D140 Practice for Sampling Bituminous Materials
D244 Test Methods and Practices for EmulsifiedAsphalts
D2170 Test Method for Kinematic Viscosity of Asphalts
(Bitumens)
E1 Specification for ASTM Thermometers
2.2 IEC Standard:
FIG. 1 Float Test Apparatus
IEC 60854 Methods of Measuring the Performance of
Ultrasonic Pulse-Echo Diagnostic Equipment
3. Summary of Test Method
4. Significance and Use
3.1 A plug of bitumen is cast in a tapered collar. The
4.1 The float test characterizes the flow behavior or consis-
assembled float and collar is then floated in the testing bath at
tency of certain bituminous materials.
the specified temperature. The time, in seconds, between
4.2 This test method is useful in determining the consis-
placing the apparatus on the water and the water breaking
tency of bitumen as one element in establishing the uniformity
through the material shall be taken as a measure of the
of certain shipments or sources of supply.
consistency of the material under examination.
5. Apparatus
5.1 Float—The float (Fig. 1) shall be made of aluminum or
This test method is under the jurisdiction of ASTM Committee D04 on Road
aluminum alloy and shall be in accordance with the following
and Paving Materials and is the direct responsibility of Subcommittee D04.44 on
requirements:
Rheological Tests.
Current edition approved Feb. 15, 1995. Published April 1995. Originally Min Normal Max
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Mass of float, g 37.70 37.90 38.10
published as D139–22T. Last previous edition D139–90 .
Total height of float, mm 34.0 35.0 36.0
Annual Book of ASTM Standards, Vol 04.02.
Height of rim above lower 26.5 27.0 27.5
Annual Book of ASTM Standards, Vol 04.03.
side of shoulder, mm
Annual Book of ASTM Standards, Vol 14.03.
Thickness of shoulder, mm 1.3 1.4 1.5
Available from American National Standards Institute, 11 W 42nd St., New
Diameter of opening, mm 11.0 11.1 11.2
York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D139–95 (2001)
5.2 Collar—The collar (Fig. 1) shall be made of brass and easy pouring, excepting creosote-oil residues, which shall be
shall be in accordance with the following requirements: mixed and poured at a temperature of 100 to 125°C. Stir the
sample thoroughly until it is homogeneous and free from air
Min Normal Max
Mass of collar, g 9.60 9.80 10.00
bubbles.Then pour it into the collar in any convenient manner
Over-all height of collar, mm 22.3 22.5 22.7
until slightly more than level with the top.
Inside diameter at bottom, mm 12.72 12.82 12.92
Inside diameter at top, mm 9.65 9.70 9.75
7.3 Emulsified Asphalts—Test the distillation residue in
accordance with Section 96.1, FloatTest,Test Methods D244.
The top of the collar shall screw up tightly against the lower
The pouring temperature for high float emulsion residues can
side of the shoulder.
be critical. If a high float residue sample fails or appears to be
5.3 Calibration of Assembly—The assembled float and col-
poured at a cooler than specified temperature, the specified
lar, with the collar filled flush with the bottom and weighted to
pouring temperature shall be confirmed in a referee sample by
a total mass of 53.2 g, shall float upon water with the rim 8.5
use of a 30-gage thermocouple probe and instrument. Position
6 1.5 mm above the surface of the water. This adjustment of
the thermocouple probe into the top center of the collar from
the total mass of the assembly is for the purpose only of
above. Record the maximum temperature measured while the
calibrating the depth of immersion in the testing bath.
residue is being poured into the collar. Fill the collar until
5.4 Thermometer—An ASTM Low Softening Point Ther-
slightly more than level with the top, and quickly remove the
mometer, graduated in either Celsius or Fahrenheit degrees as
thermocouple.
specified, having a range from −2 to +80°C or +30 to +180°F
and conforming to the requirements for Thermometer 15°C or
7.3.1 Samples for which the minimum temperature reading
15°F, respectively, as prescribed in Specification E1.
of 218°C (425°F) was not attained shall not be tested for float.
5.4.1 A thermometer consisting of K type 30 AWG gage
7.4 Asphalt and Asphalt Products—Cool asphalt and as-
thermocouple and a meter capable of reading 25°C (77°F) to
phaltproductstoroomtemperaturefor15to60min,thenplace
260°C (500°F). The thermocouple shall be 61 to 76 cm (24 to
them for 5 min in the water bath at 5°C, after which trim the
30 in.) in length. This thermometer sha
...