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PCCP Texturing Methods
Project IR(CX) 070-4 (153)
| 题名： | PCCP Texturing Methods Project IR(CX) 070-4 (153) |
| 作者： | Ahmad Ardani, Skip Outcalt |
| 关键词： | surface texture, tinning frictional characteristics, skid numbers noise properties |
| 摘要： | This report presents a 5- year evaluation and construction details of nine test sections with varying textural characteristics, Included in the report is an overview of the methodologies used to texture concrete pavement surfaces and a discussion of Frictional attributes of various textures at different speeds and their impact on noise properties. Also included in the report are descriptions of texture measuring devices and texture-installing equipment, a description of the state-of-the-art equipment used to acquire sound pressure levels, plus a thorough discussion of data acquisition/analysis. Frictional characteristics of the individual test sections were evaluated using the ASTM E 274 skid testing procedure. Ribbed-tire and smooth-tire friction tests were conducted to acquire skid numbers at three different speeds of 40,50, and 65 mph. To examine the noise properties of the test sections, noise measurements were acquired to acoustically assess the impact of various surface textures at three different locations; • Inside the test vehicle • 25 feet from the center line (3 feet away from the right shoulder) • Near the tight rear tire of the test vehicle, away from the exhaust pipe The results of this study indicated that longitudinal tining, in addition to possessing adequate frictional property, is easier to install and, more importantly, produces a much lower noise level than the traditional CDOT's transverse tining. CDOT has already adopted the longitudinal tining as a preferred method of texturing concrete pavements. |
| 报告类型： | 科技报告 |
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