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ASTM D8161-17

(Test Method)

Standard Test Method for Impact Resistance of Thermoplastic Pavement Marking Materials over a Highway Substrate by Means of a Striker Impacted by a Falling Weight

Standard Test Method for Impact Resistance of Thermoplastic Pavement Marking Materials over a Highway Substrate by Means of a Striker Impacted by a Falling Weight

SIGNIFICANCE AND USE
5.1 The significance of this test is to determine the thermoplastic pavement marking material’s resistance to impact over a simulated pavement substrate, under laboratory conditions, and is expressed as pass/fail or numerically. The test result can be used as a quality test or to differentiate marking materials.  
5.2 Anyone attempting to perform this test should initially review Test Methods D5420 and D2794, specifically the equipment setup.  
5.3 Sample preparation and equipment set-up should be followed precisely to minimize variability in the test result.
SCOPE
1.1 This test method covers the sample preparation over a road-type substrate and test methodology of thermoplastic pavement marking materials similar to the “Gardner Impact” method as listed in Test Method D5420.  
1.2 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.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

General Information

Status
Historical
Publication Date
30-Nov-2017
ICS
93.080.20 - Road construction materials
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.44 - Traffic Coatings
Current Stage
Ref Project

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ASTM D8161-17 - Standard Test Method for Impact Resistance of Thermoplastic Pavement Marking Materials over a Highway Substrate by Means of a Striker Impacted by a Falling WeightASTM D8161-17 - Standard Test Method for Impact Resistance of Thermoplastic Pavement Marking Materials over a Highway Substrate by Means of a Striker Impacted by a Falling Weight
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ASTM D8161-17 - Standard Test Method for Impact Resistance of Thermoplastic Pavement Marking Materials over a Highway Substrate by Means of a Striker Impacted by a Falling Weight
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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: D8161 − 17
Standard Test Method for
Impact Resistance of Thermoplastic Pavement Marking
Materials over a Highway Substrate by Means of a Striker
1
Impacted by a Falling Weight
This standard is issued under the fixed designation D8161; 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 D5628 Test Method for Impact Resistance of Flat, Rigid
Plastic Specimens by Means of a Falling Dart (Tup or
1.1 This test method covers the sample preparation over a
Falling Mass)
road-type substrate and test methodology of thermoplastic
D7307 PracticeforSamplingofThermoplasticTrafficMark-
pavement marking materials similar to the “Gardner Impact”
ing Materials
method as listed in Test Method D5420.
D7308 Practice for Sample Preparation of Thermoplastic
1.2 The values stated in inch-pound units are to be regarded
Pavement Marking Materials
as standard. The values given in parentheses are mathematical
E177 Practice for Use of the Terms Precision and Bias in
conversions to SI units that are provided for information only
ASTM Test Methods
and are not considered standard.
E284 Terminology of Appearance
1.3 This standard does not purport to address all of the
E691 Practice for Conducting an Interlaboratory Study to
safety concerns, if any, associated with its use. It is the Determine the Precision of a Test Method
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
3. Terminology
mine the applicability of regulatory limitations prior to use.
3.1 Definitions:
1.4 This international standard was developed in accor-
3.1.1 The terms and definitions in Terminology D883 and
dance with internationally recognized principles on standard-
E284 apply to this method.
ization established in the Decision on Principles for the
3.2 Definitions of Terms Specific to This Standard:
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
3.2.1 failure(oftestspecimen),n—thepresenceofanycrack
Barriers to Trade (TBT) Committee. or split created by the impact of the falling weight that can be
seen by the naked eye under normal laboratory lighting
2. Referenced Documents
conditions.
2
2.1 ASTM Standards: 3.2.2 Falling Weight (Gardner) Impact Tester, n—impact
D883 Terminology Relating to Plastics
tester designed as described in Test Method D5420.
D2794 Test Method for Resistance of Organic Coatings to
3.2.3 thermoplastic pavement marking, n—a highly filled
the Effects of Rapid Deformation (Impact)
100 % total solids highway marking system that when heated
D4796 Test Method for Bond Strength of Thermoplastic
toamoltenstatecanbeextrudedorsprayedontoaroadsurface
Pavement Marking Materials
and when cooled forms a solid durable delineator or marking.
D5420 Test Method for Impact Resistance of Flat, Rigid
Plastic Specimen by Means of a Striker Impacted by a
4. Summary of Test Method
Falling Weight (Gardner Impact)
4.1 In this test method, a weight falls through a guide tube
and impacts a striker resting on top of a supported specimen.
1 This test method is similar to Test Methods D5420 and D2794
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
except the impact occurs on thermoplastic pavement marking
Subcommittee D01.44 on Traffic Coatings.
material applied over a solid road-type substrate with minimal
Current edition approved Dec. 1, 2017. Published April 2018. DOI: 10.1520/
deformation.
D8161-17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.2 The test result is typically pass/fail, however maximum
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
impacttocausematerialfailurecanbedeterminedasshownby
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. cracking, chipping, delaminating, etc.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D8161 − 17
5. Significance and Use
5.1 The significance of this test is to determine the thermo-
plastic pavement marking material’s resistance to impact over
a simulated pavement substrate, under laboratory conditions,
and is expressed as pass/fail or numerically. The test result can
be used as a quality test or to differentiate marking materials.
5.2 Anyone attempting to perform this test should initially
review Test Methods D5420 and D2794,
...

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5.1 The function of this test method is to provide numerical instrumental results indicating the cohesive and/or adhesive bond strength of thermoplastic pavement marking to a specified cement brick substrate.  
5.2 The use of this test method allows the user and manufacturer to control the quality of the product and make inferences about the performance of the thermoplastic pavement marking product. Results from these tests also provide information helpful in researching and developing thermoplastic pavement marking materials.  
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SIGNIFICANCE AND USE
5.1 The significance of this test is to determine the thermoplastic pavement marking material’s resistance to impact over a simulated pavement substrate, under laboratory conditions, and is expressed as pass/fail or numerically. The test result can be used as a quality test or to differentiate marking materials.  
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5.1 The gradation (size distribution) of glass beads has a significant influence on the retroreflective efficiency of a pavement marking system.  
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5.1 This test method is used to measure the apparent viscosity of thermoplastic pavement marking at elevated temperatures. Elevated temperature viscosities of thermoplastic pavement marking may be related to the properties of coatings, adhesives, and composite thermoplastics. This method is helpful in determining the flow properties which can be used in determining processability when applied to the road surface.  
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This specification covers asphalt plank used for bridge decks as well as for industrial floors. Asphalt planks shall be classified according to usage: Type Ia; Type Ib; and Type II. Asphalt plank shall be formed from a mixture of asphalt, fibers, modifiers, or a combination thereof, and mineral filler in such a manner as to produce a uniformly dense mass. The following test methods shall be intended to measure those attributes necessary to measure the ability of asphalt plank to provide a reasonably long and satisfactory service: absorption; brittleness; dimensions; and hardness.
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