原文传递
BOND CONTRIBUTION TO WHITETOPPING PERFORMANCE ON LOW-VOLUME ROADS.
| 题名： | BOND CONTRIBUTION TO WHITETOPPING PERFORMANCE ON LOW-VOLUME ROADS. |
| 作者： | Grove-JD; Harris-GK; Skinner-BJ |
| 关键词： | BONDED-CONCRETE-OVERLAYS; BONDING-STRENGTH; ASPHALT-PAVEMENTS; POWER-BROOMING; POWER-BROOMING-WITH-AIR-BLAST; MILLING-; CEMENT-GROUTS; TACK-COATS; PERFORMANCE-EVALUATIONS; LOW-VOLUME-ROADS |
| 摘要： | Research was initiated in 1991 as a part of a whitetopping project to study the effectiveness of various techniques to enhance bond strength between a new portland cement concrete (PCC) overlay and an existing asphalt cement concrete (ACC) pavement surface. A 1676-m (5,500-ft) section of County Road R16 in Dallas County, Iowa, was divided into 12 test sections. Techniques used to enhance bond were power brooming, power brooming with air blast, milling, cement and water grout, and emulsion tack coat. As a part of these bonding techniques, two pavement thicknesses were placed, two concrete proportions were used, and two sections were planed to a uniform cross slope. Bond strength was perceived to be the key to determining an appropriate design procedure for whitetopping. If adequate bond is achieved, a bonded PCC overlay technique can be used for design. Without sufficient bond development, an unbonded overlay procedure should be used. The research found that bond was developed in every section, regardless of the bond enhancement technique used. The underlying ACC does contribute to the composite structure and can be considered in the design. The sections on which the underlying ACC contributed the greatest amount of structure to the composite pavement were not the sections with the highest bond strength. |
| 总页数： | Transportation Research Record. 1993. (1382) pp104-110 (1 Phot., 1 Fig., 6 Tab.) |
| 报告类型： | 科技报告 |
相关文献
- International Conference on Low-Volume Roads, 2003 (8th). Held in Reno, Nevada on June 22-25, 2003. Planning and Administration; Energy and Environment; Design; Materials, Construction, and Maintenance; Operations and Safety. Transportation Research Record No. 1819, Volume 1.
- International Conference on Low-Volume Roads 2003, (8th). Held in Reno, Nevada on June 22-25, 2003. Planning and Administration; Energy and Environment; Design; Materials, Construction, and Maintenance; Operations and Safety. Transportation Research Record No. 1819, Volume 2.
- LOW-VOLUME ROAD GEOMETRIC DESIGN PRACTICES IN THE NATIONAL FORESTS OF THE UNITED STATES.
- Investment Prioritization Methods for Low-Volume Roads. National Cooperative Highway Research Program (NCHRP) Synthesis 521. A Synthesis of Highway Practice.
- Low-Volume Roads 2011, Volume 2. Transportation Research Record: Journal of the Transportation Research Board, No. 2204
- Low Volume Roads 2015: Volume 2. Transportation Research Record: Journal of the Transportation Research Board, No. 2473.
检索历史
应用推荐
