PCC PAVEMENT TEXTURING IN ILLINOIS
Seven textures were formed in the plastic surface of a CRC pavement during construction. They were formed using transverse tines, transverse broom, artificial turf, transverse roller, artificial turf-transverse tine combination, longitudinal broom, and longitudinal tines. Construction observations indicated that the use of one machine for both texturing and applying curing membrane is unsatisfactory since the timing of the two operations is incompatible. Care must be taken in texturing to avoid overlapping of transverse textures, edge damage, and damage due to stopping with the texturing device on the pavement. Preliminary tests, before the pavement was open to traffic, indicated that the artificial turf-transverse tine combination had the highest friction numbers at the three test speeds and one of the lower speed gradients. The transverse roller surface was completely inadequate from a frictional standpoint. Texture-depth measurements indicated the superiority of the artificial turf, transverse tine and the turf-tine combination. The noise tests showed that the turf-tine combination had the lowest noise level inside the vehicle but that none of the textures except the transverse roller (like rumble strip) should be ruled out for noise without further study. Roadometer tests gave Roughness Index values in inches/mile ranging from 72 for the longitudinal broom to 91 for the turf-tine combination. /Author/
- This study is conducted in cooperation with the U.S. Department of Transportation, Federal Highway Administration.
Illinois Department of TransportationBureau of Materials and Physical Research
126 East Ash Street
Springfield, IL USA 62704-4766
- Davidson, J N
- Publication Date: 1977-5
- Features: Figures; References; Tables;
- Pagination: 43 p.
- TRT Terms: Concrete curing; Construction equipment; Data processing; Friction; Pavement grooving; Pavements; Paving; Portland cement concrete; Roughness; Sound level; Speed; Surface course (Pavements); Texture
- Subject Areas: Highways; Pavements;
- Accession Number: 00172871
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: FHWA-IL-PR-74 Intrm Rpt.
- Contract Numbers: IHR-408
- Files: TRIS, STATEDOT
- Created Date: Apr 12 1978 12:00AM