EVALUATION OF FULL-SCALE EXPERIMENTAL CONCRETE HIGHWAY FINISHES
Results on an evaluation of two sets of full-scale experimental concrete test sections are summarized. Eighteen experimental concrete finishes were evaluated in terms of skid resistance under standard trailer water conditions and under simulated rainfall conditions. In addition the change in texture depths and skid values with time were measured. Results indicate that (1) texture depths of 0.060 in. (0.152 cm) or greater can easily and economically be constructed with 0.125 in. (0.318 cm) metal times spaced closer than 0.50 in. (1.27 cm) apart, (2) under normal traffic conditions all concrete textures can be expected to wear-down approximately 25 to 35 percent during the first 1/2 year and then remain relatively unchanged for a prolonged period, (3) skid measurements made under standard trailer water conditions may not be indicative of real life conditions in wet weather, (4) low skid values could be obtained in almost any rainfall in which the pavement is completely wetted, and (5) under simulated rain conditions deep transverse texturing will result in the greatest improvement in skid values.
- Research performed in cooperation with DOT, FHWA. Research Study Title: Quality of Portland Cement Concrete Pavement as Related to Environmental Factors and Handling Practices During Construction.
Arlington, TX USA 76011
- Ledbetter, W B
- Meyer, A H
- Ballard, D E
- Publication Date: 1974-9
- Features: Appendices; Figures; References; Tables;
- Pagination: 81 p.
- TRT Terms: Concrete; Concrete pavements; Depth; Experimental roads; Moisture content; Pavement grooving; Pavements; Rain; Seal coats; Simulation; Skid resistance tests; Skid trailers; Surface course (Pavements); Test sections; Texture; Time; Wear
- Uncontrolled Terms: Wet conditions
- Subject Areas: Highways; Pavements;
- Accession Number: 00083954
- Record Type: Publication
- Report/Paper Numbers: TTI-2-6-70-141-4F Final Rpt.
- Contract Numbers: 2-6-70-41
- Files: TRIS
- Created Date: Apr 8 1975 12:00AM