Standard Active Last Updated: Jun 09, 2020 Track Document
ASTM E670-09(2020)

Standard Test Method for Testing Side Force Friction on Paved Surfaces Using the Mu-Meter

Standard Test Method for Testing Side Force Friction on Paved Surfaces Using the Mu-Meter E0670-09R20 ASTM|E0670-09R20|en-US Standard Test Method for Testing Side Force Friction on Paved Surfaces Using the Mu-Meter Standard new BOS Vol. 04.03 Committee E17
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Significance and Use

4.1 The knowledge of side force friction serves as an additional tool in characterizing pavement surfaces. Side force friction data alone may be of limited value in determining the suitability of paving materials or finishing techniques. However, when used in conjunction with other physical and chemical tests, the side force friction may contribute to characterization of pavement surfaces.

4.2 The values measured with the equipment and procedures stated herein do not necessarily agree or correlate directly with those obtained by other paved surface friction measuring methods.


1.1 This test method covers the measurement of the side force friction of paved surfaces utilizing a device commonly called a Mu-Meter.2

1.2 This test method utilizes a measurement obtained by pulling the Mu-Meter, containing two freely rotating test wheels angled to the direction of motion, over a pavement surface at a constant speed while the test wheels are under a constant static load. This method provides data of the side force friction (and other data) along the whole length of the test surface being tested which is applied to a variety of computerized algorithms enabling the production of results, including (but not limited to) rolling averages, numeric and graphical representations, friction mapping, and reports formatted in the layout approved by a wide variety of national airport regulators.

1.3 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.

1.4 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. See also Section 6.

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.

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Book of Standards Volume: 04.03
Developed by Subcommittee: E17.21
Pages: 12
DOI: 10.1520/E0670-09R20
ICS Code: 93.080.20