原文传递
Guidelines for Using Prime and Tack Coats.
| 题名： | Guidelines for Using Prime and Tack Coats. |
| 作者： | cross, s. a. shrestha, p. p. |
| 关键词： | environmental effects, decision making, prime coat, pavement overlays, bituminous concretes |
| 摘要： | Prime and tack coats have a purpose in the pavement construction process, yet many times they are misused or eliminated during the project. While most of the time no harm appears to occur to the roadway, technical guidance is warranted to assure appropriate usage. The objective of this study was to produce a prime and tack coat guide publication developed for project development and field personnel to provide decision-making guidance on how to use, when to keep, and when to eliminate prime and tack coats. A literature search, which focused on handbooks and technical reports, was conducted to determine the applicability and benefits of prime and tack coat, prime and tack coat effectiveness, materials used and when and where they are used. CFLHDs current construction specifications were compared with best practices determined from the literature and phone surveys of current practice of state DOTs from the CFLHD region. Finally, a review of the potential harmful and positive environmental effects of the prime and tack coat process, including the various bituminous products used, was undertaken. Based on the information collected, a guideline for CFLHD project development and field personnel was developed. The guideline provides decision-making guidance on how to use, when to keep, and when to eliminate prime and tack coats. / NOTE: Final rept. / Supplementary Notes: Sponsored by Federal Highway Administration, Denver, CO. Central Federal Lands Highway Div. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| 总页数： | u0710；111p |
| 报告类型： | 科技报告 |
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