Citation

Clemmer HF, Smith NG. Highw. Res. Board bull. 1958; 186: 48-53.

Copyright

(Copyright © 1958, National Research Council (U.S.A.), Highway Research Board)

DOI

unavailable

PMID

unavailable

Abstract

Coefficient of friction determinations were made with the generals motor's trailer equipment on the principal types of pavement surfaces in the district of columbia. Data were collected from finished portland cement concrete, bituminous concrete, sheet asphalt, and various other types of surface treatments. Data obtained indicate that the higher type surfaces of sheet asphalt, asphaltic concrete and finished portland cement concrete have satisfactory skid resistance characteristics. The equipment developed by general motors appears to have definite advantages including: Simplicity of equipment design, a relatively small capital outlay, ease of making numerous determinations without interference to traffic, a minimum number of individuals involved in obtaining data, ease of applying water so that the test can be made on wet surface, and ease of making determinations over a wide range of speeds.