ASTM D6449-99

Standard Test Method for Flow of Fine Aggregate Concrete for Fabric Formed Concrete (Flow Cone Method)

SIGNIFICANCE AND USE
This test method is applicable to the determination of the fluidity of various fluid fine aggregate concrete mixtures.
SCOPE
1.1 This test method covers a procedure, used both in the laboratory and in the field, for determining the time of efflux of a specified volume of the fine aggregate concrete through a standardized flow cone and used for fabric formed concrete (FFC); however, the test method may also be used for other fluid concrete.
1.2 It is for use with fine aggregate concrete containing fine aggregate as define in Specification C 33.
1.3 This test method is intended for use with fine aggregate concrete having an efflux time 9 to 15 s.
1.4 The values stated in SI units are to be regarded as the standard.
1.5 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.

General Information

• Status: Historical
• Publication Date: 09-Jul-1999
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: D18 - Soil and Rock
• Drafting Committee: D18.25 - Erosion and Sediment Control Technology

Relations

• Replaced By: ASTM D6449-99(2008) - Standard Test Method for Flow of Fine Aggregate Concrete for Fabric Formed Concrete (Flow Cone Method)
• Effective Date: 01-Jan-2008

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D6449–99
Standard Test Method for
Flow of Fine Aggregate Concrete for Fabric Formed
Concrete (Flow Cone Method)
This standard is issued under the fixed designation D 6449; 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. Significance and Use
1.1 This test method covers a procedure, used both in the 4.1 This test method is applicable to the determination of
laboratoryandinthefield,fordeterminingthetimeofeffluxof the fluidity of various fluid fine aggregate concrete mixtures.
a specified volume of the fine aggregate concrete through a
5. Interferences
standardized flow cone and used for fabric formed concrete
(FFC); however, the test method may also be used for other 5.1 The presence of solid particles retained on the 9.53 mm
( ⁄8 in.) sieve or lumps of unmixed material in the fine
fluid concrete.
1.2 It is for use with fine aggregate concrete containing fine aggregate may cause the fine aggregate concrete to flow
unevenly through the discharge tube of the flow cone or stop
aggregate as define in Specification C 33.
1.3 This test method is intended for use with fine aggregate the flow completely. Uneven flow will result in slower transit
of the fine aggregate concrete, thereby indicating a false
concrete having an efflux time 9 to 15 s.
1.4 The values stated in SI units are to be regarded as the consistency.
standard.
6. Apparatus
1.5 This standard does not purport to address all of the
6.1 FlowCone,thedimensionsasshowninFig.1.Thebody
safety concerns, if any, associated with its use. It is the
and discharge tube can be stainless steel, cast aluminum, or
responsibility of the user of this standard to establish appro-
other essentially noncorroding metal.
priate safety and health practices and determine the applica-
6.2 Receiving Container, capacity 2000 mL (2.114 qt),
bility of regulatory limitations prior to use.
minimum.
2. Referenced Documents
6.3 Ring Stand or other devise, capable of supporting the
flow cone in a vertical, steady position over the received
2.1 ASTM Standards:
C 33 Specification for Concrete Aggregates container.
6.4 Level, carpenter’s or similar.
C 39 Test Method for Compressive Strength of Cylindrial
Concrete Specimens 6.5 Stop Watch, least reading of not more than 0.2 s.
6.6 Thermometer, having a range from [−18 to 49°C (0 to
C 94 Specification for Ready-Mixed Concrete
C 109/C 109M Test Method for Compressive Strength of 120°F)] and conforming to the requirements for ASTM ther-
mometerNo.36degreesC.Otherthermometersoftherequired
Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube
Specimens) accuracy, including the metal immersion type, are acceptable.
C 1064 Test Method for Temperature of Freshly Mixed
7. Test Sample
Portland Concrete Cement
7.1 The fine aggregate concrete test sample shall be in
3. Summary of Test Method
excess of 1725 mL(1.823 qt) and shall be representative of the
3.1 The time of efflux of a specified volume of fine fine aggregate concrete in the mixer.
7.2 When sampling and testing is being done for the
aggregate concrete from a standardized flow cone is measured.
purpose of proportioning or comparing mixes or for qualifying
materials, the temperature of the fine aggregate concrete shall
This test method is under the jurisdiction of ASTM Committee D-18 on Soil
be in accordance with Specification C 94, unless otherwise
and Rock and is the direct responsibility of Subcommittee D18.25 on Erosion and
Sediment Control Technology. specified.
Current edition approved July 10, 1999. Published October 1999.
Annual Book of ASTM Standards, Vol 04.02.
Annual Book of ASTM Standards, Vol 04.01.
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D6449
NOTE 1—Othermeansofindicatingfineaggregateconcretelevelmaybeusedaslongasaccurateindicationoffineaggregateconcretelevelonvolume
is obtained.
FIG. 1 Cross Section of Flow Cone
8. C
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