Significance and Use
The function of this test method is to provide numerical instrumental results indicating the cohesive and/or adhesive bond strength of thermoplastic traffic marking to a specified cement brick substrate.
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 traffic marking product. Results from these tests also provide information helpful in researching and developing thermoplastic traffic marking materials.
The method has been revised to be more consistent to methodology in other ASTM bond methods for coatings in Test Methods D4541, D5179, and D7234.
Strict adherence to the procedures outlined is necessary for precision of the test method. Under no conditions should the bond strength be accepted unless there is conformance to the method.
1. Scope
1.1 This test method provides an instrumental means for the determination of thermoplastic traffic marking material bond strengths using cement bricks and loading fixtures.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
C109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)
D16 Terminology for Paint, Related Coatings, Materials, and Applications
D4541 Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers
D5179 Test Method for Measuring Adhesion of Organic Coatings to Plastic Substrates by Direct Tensile Testing
D7234 Test Method for Pull-Off Adhesion Strength of Coatings on Concrete Using Portable Pull-Off Adhesion Testers
D7307 Practice for Sampling of Thermoplastic Traffic Marking Materials
D7308 Practice for Sample Preparation of Thermoplastic Traffic Marking Materials
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
Keywords
bond strength; cement brick; thermoplastictraffic marking;: Adhesive bonds; Bond strength--paints/related coatings; Brick; Cement; Cohesive strength; Dillon dynamometer; Dynamometer testing; Epoxy resins; Instrumental measurement--paints/related coatings/materials; Pull testing; Steel; Steel cubes (for testing); Temperature (applications); Thermoplastics;
ICS Code
ICS Number Code 93.080.20 (Road construction materials)
DOI: 10.1520/D4796-10
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