Citation

Scholer CF, Forrestel RR. Transp. Res. Rec. 1980; 752: 17-21.

Copyright

(Copyright © 1980, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

An experimental project conducted on an old concrete pavement to evaluate two methods of reestablishing pavement skid resistance is described. Both methods involve using very thin overlays to enhance skid resistance rather than improving the structural capacity of the pavement. Good skid resistance was ensured by selecting aggregates that had proved to give superior skid performance when subjected to polishing action. Adhesion of the very thin overlay to the existing pavement surface was enhanced by the use of admixtures. Both latex and acrylic emulsions were found to be effective. Placement methods were by screeding on a 0.6-cm (0.25-in) thickness or by brooming on a 0.3-cm (0.125-in) thickness. The brooming method was successful, but the screeding was not because the material lost adhesion in many areas. Placement details and skid-test data are presented. The excellent results, in regard to both skid resistance and adhesion, warrant further applications of the technique in order to evaluate its performance under conditions of heavier traffic.