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Evaluating Air-Entraining Admixtures for Highway Concrete.
| 题名： | Evaluating Air-Entraining Admixtures for Highway Concrete. |
| 作者： | nagi, m. a. okamoto, p. a. kozikowski, r. l. hover, k. |
| 关键词： | admixtures, design, highways, pavements, performance evaluation, criteria, freezing, thawing, durability, testing |
| 摘要： | This report presents a recommended procedure for evaluating air-entraining admixtures used in highway concrete. The procedure involves the testing of non-air-entrained concrete and concrete containing the air-entraining admixture under simulated field conditions. Criteria are proposed for acceptance of admixtures for use in either highway pavements or structures. The recommended procedure and acceptance criteria will guide materials engineers in evaluating and selecting air-entraining admixtures that should contribute to appropriate freeze-thaw durability and thus to good performance and long service life. The content of the report will be of immediate interest to materials engineers, researchers, and others concerned with the design of concrete mixtures for use in highway pavements and structures. / Supplementary Notes: Prepared in cooperation with Construction Technology Labs., Skokie, IL. and Cornell Univ., Ithaca, NY. Sponsored by American Association of State Highway and Transportation Officials, Washington, DC. and Federal Highway Administration, Washington, DC. / Availability Note: Product reproduced from digital image. 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： | u0723；60p |
| 报告类型： | 科技报告 |
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