APPLICATION AND FIELD EVALUATION OF VERY THIN SKID RESISTANT PAVEMENT SURFACES
The objective of this study was to improve skid resistance on worn, structurally sound, portland cement concrete pavements. This was accomplished through the evaluation of predetermined mixes and application techniques in the field through the application of very thin, concrete overlays. The overlays 3/8 inch or less in depth, were applied by two distinct application techniques, brooming and screeding. The four predetermined mixes were applied in twelve overlays. The goals of the field work were: (1) evaluation of the application techniques; (2) evaluation of the predetermined mixes; (3) evaluation of adhesion. The evaluation of the mixes with respect to performed over time and adhesion will be monitored for a period of one year. At that time the most promising overlays will then be considered for further testing on a larger scale. This Report covers the field work installation of the overlays. In the Fall of 1977, some application of overlays was conducted for experience and adhesion testing purposes. In the Spring of 1978, twelve strips each 3 feet wide by 1250 feet long, were placed. The first four were screeding and rest were brooming. Two admixtures, latex and acrylic, were used to improve adhesion between the overlay and pavement. Both proved to be intially effective. The overlay skid resistance was evaluated by the use of a skid trailer. Initially, broomed overlays using the lightweight aggregate gave the highest skid resistance with the screeded overlays providing the least skid resistance. /FHWA/
- Conducted in cooperation with the Federal Highway Administration. Part of the research study titled "Thin Applied Surfacing for Improving Skid Resistance on Concrete Pavements".
Purdue University/Indiana Department of Transportation JHRPPurdue University, School of Civil Engineering
West Lafayette, IN United States 47907-1284
- Forrestal, R R
- Publication Date: 1978-8-2
- Pagination: 69 p.
- TRT Terms: Adhesion; Field tests; Overlays (Pavements); Portland cement concrete; Skid resistance
- Subject Areas: Highways; Materials; Pavements;
- Accession Number: 00195894
- Record Type: Publication
- Source Agency: Federal Highway Administration
- Report/Paper Numbers: FHWA-IN-78-12 Intrm Rpt.
- Contract Numbers: 1(16) Part II
- Files: TRIS, ATRI, USDOT
- Created Date: Aug 28 1979 12:00AM