ASTM D7000-19a

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Designation: D7000 − 19 D7000 − 19a
Standard Test Method for
Sweep Test of Emulsified Asphalt Surface Treatment
Samples
This standard is issued under the fixed designation D7000; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method measures the curing performance characteristics of emulsified asphalt and aggregates by simulating the
brooming of a surface treatment in the laboratory.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 A precision and bias statement for this standard has not been developed at this time. Therefore, this standard should not be
used for acceptance or rejection of a material for purchasing purposes. The text of this standard references notes and footnotes
which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as
requirements of the standard.
1.4 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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
C127 Test Method for Relative Density (Specific Gravity) and Absorption of Coarse Aggregate
D8 Terminology Relating to Materials for Roads and Pavements
D75/D75M Practice for Sampling Aggregates
D140/D140M Practice for Sampling Asphalt Materials
D226/D226M Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing
D977 Specification for Emulsified Asphalt
D2397/D2397M Specification for Cationic Emulsified Asphalt
D3666 Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
2.2 ISSA Document:
ISSA Technical Bulletin No. 100 Test Method for Wet Track Abrasion of Slurry Surfaces
3. Summary of Test Method
3.1 The sweep test is effective for defining the film formation stage of emulsified asphalt. A brush (designed to closely replicate
the sweeping action of a broom) exerts a force on the aggregate used on surface treatments. Emulsified asphalt is applied to an
asphalt felt disk. Aggregate is applied and embedded into the emulsified asphalt. The sample is then conditioned at a prescribed
temperature and time period before testing. A mixer abrades the surface of the sample using a nylon brush. After 1 min of abrasion,
the test is stopped, any loose aggregate is removed, and the percent mass loss is calculated.
This test method is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.24 on Asphalt
Surface Treatments.
Current edition approved Dec. 1, 2019Dec. 15, 2019. Published December 2019January 2020. Originally approved in 2004. Last previous edition approved in 20172019
as D7000 – 11 (2017).D7000 – 19. DOI: 10.1520/D7000-19.10.1520/D7000-19A.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Available from International Slurry Surfacing Association (ISSA), 3 Church Circle, PMB 250, Annapolis, MD 21401, http://www.slurry.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7000 − 19a
4. Significance and Use
4.1 This test method is useful for classifying rapid-setting emulsified asphalt and is applicable to surface treatments that require
a quick return to traffic. It has the capability to predict surface treatment performance in the formative stage using construction
components. This performance test is intended to evaluate the potential curing characteristics of a binder-aggregate combination
to ensure that the surface treatment is sufficiently cured before allowing traffic onto the seal.
NOTE 1—The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the
capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification D3666 are generally capable of competent
and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification D3666 alone does not completely
ensure reliable results. Reliable results depend on many factors; following the suggestions of Specification D3666 or some similar acceptable guideline
provides a means of evaluating and controlling some of those factors.
5. Apparatus
5.1 Mixer —Use to abrade the sample.
5.2 Quick-Clamp Mounting Base —This base must be an adequate and level support for clamping the sample in place. The test
sample should not move during abrasion.
5.3 Pan—An appropriate pan will contain the test sample on the mixer and hold dislodged aggregate.
5.4 Oven—The conditioning oven shall be a constant temperature forced-draft oven meeting the following requirements,
containing shelves with at least 65 % voids. The shelves shall be placed at least 120 mm apart and 100 mm away from the top
and floor.
Oven Type Forced-draft oven
Min Inside D × W × H 460 × 460 × 460 mm
Accuracy ±1.0 °C
5.5 Balance—A balance capable of weighing 800 g or more to within 60.1 g. A minimum platform length and width of 240 mm
is required.
5.6 Removable Brush Holder—The brush holder shall be attachable to the mixer and capable of a free-floating vertical
movement of 19 6 1 mm having the dimensions listed in Fig. 1. A drawing of this apparatus can be seen in Fig. 1. The total weight
of the brush head and the attached weight shall weigh 1500 6 15 g. The collar and nylon strip brush are not included in this weight.
The brush clamping system shall hold the nylon strip brush in place so that it will not move or dislodge during testing.
5.7 Nylon Strip Brush —The brush shall conform to the following specifications.
Overall Trim 25.4 mm
Overall Length 127 ± 1 mm
Backing Size #7
Fill Material Crimped black nylon
Nylon Type 6.0
Fill Diameter 0.254 mm
Weight 35 ± 2 g
5.8 Strike-Off Template—The template should consist of a flat, stainless steel metal plate. It shall include a 280 6 3 mm diameter
cut out 3-mm diameter cut-out with a flush edge. A 16-gage U.S. Standard (plate and sheet metal) will suffice in most cases.
NOTE 2—Emulsion mass may vary according to emulsion viscosity and applied strike-off pressure. Alternative gages may be necessary for emulsion
mass correction for varying aggregate sizes and shapes.
5.9 Strike-Off Rod—The 750 6 100 mm 100-mm rod shall be made of 17 to 20 mm 20-mm electrical conduit for striking off
emulsion from the template surface.
5.10 Sweep Test Compactor—A suitable compaction device with a minimum curved surface radius of 550 6 30 mm and shall
weigh 7500 6 500 g. A picture of this apparatus can be seen in Fig. 2.
6. Materials
6.1 Emulsified Asphalt—The emulsified asphalt should meet all applicable specifications for the surface treatment application.
The emulsified asphalt shall be equilibrated to a temperature of 60 °C for sample production.
4 1
The sole source of supply of the Hobart Mixer ⁄3 H.P. Fixed Speed Motor, model A 120, apparatus known to the committee at this time is Hobart Corporation, 701 S.
Ridge Ave., Troy, OH 45374, http://www.hobartcorp.com. If you are aware of alternative suppliers, please provide this information to ASTM International Headquarters. Your
comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
The sole source of supply of the Wet Track Abrasion Tester (ISSA TB100) apparatus known to the committee at this time is Mastrad Limited, Finch House, 25 Finch
Road, Douglas, United Kingdom IM1 2PS, http://www.mastrad.com. If you are aware of alternative suppliers, please provide this information to ASTM International
Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
The sole source of supply of the Nylon Strip Brush Part #MB7006 apparatus known to the committee at this time is Tanis Incorporated, 3660 Kettle Court E., Delafield,
WI 53018, http://www.tanisinc.com. If you are aware of alternative suppliers, please provide this information to ASTM International Headquarters. Your comments will
receive careful consideration at a meeting of the responsible technical committee, which you may attend.
D7000 − 19a
Dimensions
ID Name mm
A Collar diameter 36
B Collar height 76
C Brush head length 128
D Overall brush head height 19
E Groove height 17
F Groove
...