ASTM D7681-11 (R2016)e1 PDF Download
Standard EN
Standard Test Method for Measuring Gradation of Glass Spheres Using a Flowing Stream Digital Image Analyzer
Also Known As:
ASTM D7681-11 (R2016)e1 is a standard test method for measuring the gradation or size distribution of glass spheres used in pavement marking systems. The purpose of this test method is to ensure compliance with the standard specifications for glass beads in pavement marking applications.
The gradation of glass beads is important as it affects the retroreflective efficiency of a pavement marking system. This test method provides a way to characterize the gradation of glass beads and present the size data in various formats as required by the agency pavement marking material specification.
It should be noted that this test method is specifically designed for measuring the gradation of glass spheres for pavement marking applications and may not be applicable for other industrial applications. The standard defines typical gradations for pavement marking systems in ranges from Type 0 to 5, according to AASHTO M247-08.
| Descriptors | sieve size, size distribution, gradation, flowing stream digital image analyzers, pavement markings,Glass Beads,Pavement Marking Materials,Physical Process,Process Stream Analyzers,Size |
| ICS Codes | 93.080.20 - Road construction materials |
| Language(s) | English |
| File Size | 92.2 KB |
