ASTM-E2176:2001 Edition

$40.63

E2176-01 Standard Test Method for Measuring the Coefficient of Retroreflected Luminance (R_L) of Pavement Markings in a Standard Condition of Continuous Wetting

Published By	Publication Date	Number of Pages
ASTM	2001	5

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Categories: 93.080.20 - Road construction materials, ASTM

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Description

ASTM E2176-01

Historical Standard: Standard Test Method for Measuring the Coefficient of Retroreflected Luminance (R_L) of Pavement Markings in a Standard Condition of Continuous Wetting

ASTM E2176

Scope

1.1 This test method covers the measurement of the wet retroreflective (R_L) properties of horizontal pavement marking materials, such as traffic stripes and road surface symbols, using a portable or mobile retroreflectometer that can be placed on or before the road marking to measure the retroreflection at the prescribed geometry.

1.2 This method of measuring of the wet retroreflective properties (R_L) of pavement markings utilizes a method of continuously wetting the marking during measurement with the retroreflectometer (see Fig 1).

Note 1&#8212Test Method E 2177 may be used to describe the performance of pavement markings in conditions of wetness after a period of rain.

1.3 This test method specifies the use of portable or mobile reflectometers that can measure pavement markings per Test Method E 1710. The entrance and observation angles required of the retroreflectometer in this test method are commonly referred to as “30 meter geometry.”

1.4 This test method is intended to be used for field measurement of pavement markings but may be used to measure the performance of materials on sample panels before placing the marking material in the field.

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.

Keywords

continuous wetting; dry retroreflection; mobile retroreflectometers; pavement markings; portable retroreflectometer; wet retroreflection

ICS Code

ICS Number Code 93.080.20 (Road construction materials)

DOI: 10.1520/E2176-01

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology FIG. 1
2	Significance and Use Apparatus FIG. 2
3	Sampling Calibration General Procedure Test Report
4	Factors That May Influence Measurements Precision and Bias Keywords TABLE 1 TABLE 2
5	X1. EXAMPLES OF PAVEMENT MARKING MEASUREMENT SYSTEMS X1.1 FIG. X1.1

Additional information

Standard Title	E2176-01 Standard Test Method for Measuring the Coefficient of Retroreflected Luminance (R<sub>L</sub>) of Pavement Markings in a Standard Condition of Continuous Wetting
Published Code	ASTM
Publication Date	2001
Pages Count	5
ICS Codes	93.080.20 - Road construction materials