ASTM D139-95

Standard Test Method for Float Test for Bituminous Materials

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
• Technical Committee: D04 - Road and Paving Materials
• Drafting Committee: D04.44 - Rheological Tests

Relations

• Replaced By: ASTM D139-95(2001)e1 - Standard Test Method for Float Test for Bituminous 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NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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.
Designation: D 139 – 95
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
1
Float Test for Bituminous Materials
This standard is issued under the fixed designation D 139; 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 5. Apparatus
1.1 This test method covers the float test for bituminous 5.1 Float—The float (Fig. 1) shall be made of aluminum or
materials. aluminum alloy and shall be in accordance with the following
1.2 This standard does not purport to address all of the requirements:
safety concerns, if any, associated with its use. It is the
Min Nor- Max
mal
responsibility of the user of this standard to establish appro-
Mass of float, g 37.70 37.90 38.10
priate safety and health practices and determine the applica-
Total height of float, mm 34.0 35.0 36.0
bility of regulatory limitations prior to use. For a specific Height of rim above lower 26.5 27.0 27.5
side of shoulder, mm
precaution statement, see 6.1.
Thickness of shoulder, mm 1.3 1.4 1.5
1.3 The values stated in SI units are to be regarded as the
Diameter of opening, mm 11.0 11.1 11.2
standard. The values given in parentheses are for information
5.2 Collar—The collar (Fig. 1) shall be made of brass and
only.
shall be in accordance with the following requirements:
2. Referenced Documents Min Normal Max
Mass of collar, g 9.60 9.80 10.00
2.1 ASTM Standards:
Over-all height of collar, mm 22.3 22.5 22.7
Inside diameter at bottom, mm 12.72 12.82 12.92
C 670 Practice for Preparing Precision and Bias Statements
2 Inside diameter at top, mm 9.65 9.70 9.75
for Test Methods for Construction Materials
3
D 140 Practice for Sampling Bituminous Materials
The top of the collar shall screw up tightly against the lower
3
D 244 Test Methods for Emulsified Asphalts
side of the shoulder.
D 2170 Test Method for Kinematic Viscosity of Asphalts
5.3 Calibration of Assembly—The assembled float and col-
3
(Bitumens)
lar, with the collar filled flush with the bottom and weighted to
4
E 1 Specification for ASTM Thermometers a total mass of 53.2 g, shall float upon water with the rim 8.5
6 1.5 mm above the surface of the water. This adjustment of
3. Summary of Test Method
the total mass of the assembly is for the purpose only of
3.1 A plug of bitumen is cast in a tapered collar. The calibrating the depth of immersion in the testing bath.
assembled float and collar is then floated in the testing bath at 5.4 Thermometer—An ASTM Low Softening Point Ther-
the specified temperature. The time, in seconds, between mometer, graduated in either Celsius or Fahrenheit degrees as
placing the apparatus on the water and the water breaking specified, having a range from −2 to +80°C or +30 to +180°F
through the material shall be taken as a measure of the and conforming to the requirements for Thermometer 15°C or
consistency of the material under examination. 15°F, respectively, as prescribed in Specification E 1.
5.4.1 A thermometer consisting of K type 30 AWG gage
4. Significance and Use
thermocouple and a meter capable of reading 25°C (77°F) to
4.1 The float test characterizes the flow behavior or consis- 260°C (500°F). The thermocouple shall be 61 to 76 cm (24 to
30 in.) in length. This thermometer shall conform to the
tency of certain bituminous materials.
4.2 This test method is useful in determining the consis- temperature/voltage tables of the National Institute of Stan-
dards and Technology and to the IEC 584 standards for K-, J-,
tency of bitumen as one element in establishing the uniformity
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of certain shipments or sources of supply. and T-type thermocouples.
5.5 Testing Bath—A circular bath of at least 185 mm in
internal diameter and containing water at least 185 mm in
1
This test method is under the jurisdiction of ASTM Committee D-4 on Road depth; or a rectangular bath with minimum internal dimensions
and Paving Materials and is the direct responsibility of Subcommittee D04.44 on
of 150 mm width and 300 mm length, and containing water at
Rheological Tests.
least 110 mm in depth. The height of the surface of the
Current edition approved Feb. 15, 1995. Published April 1995. Originally
e1
container above the water shall be at least 40 mm. The bath
published as D 139 – 22 T. Last previous edition D 139 – 90 .
2
Annual Book of ASTM Standards, Vol 04.02.
3
Annual Book of ASTM Standards, Vol 04.03.
4 5
Annual Book of ASTM Standards, Vol 14.03. Tegam Model 819 meter is an appropriate meter for this purpose.
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