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Prestress Losses in Prestressed Bridge Girders Cast with Self-Consolidating Concrete.
| 题名： | Prestress Losses in Prestressed Bridge Girders Cast with Self-Consolidating Concrete. |
| 作者： | ruiz, e. d. floyd, r. w. staton, b. w. do, n. h. hale, w. m. |
| 关键词： | self-consolidated concrete, steels, costs, aggregates, research program, arkansas, cements, compressive strength |
| 摘要： | The use of prestressed bridges in Arkansas is becoming more common. The increase in steel costs has contributed to the popularity of prestressed bridge girders. Prestressed girders are particularly common in areas that border neighboring states (and these areas are also typically rural). Self Consolidating Concrete (SCC) is a recent advancement in the concrete industry. SCC is a type of concrete that can be placed without consolidation and is beginning to be widely accepted. Some states are allowing the use of SCC bridge girders. SCC is not much different from conventional concrete. The constituent materials are the same, but SSC typically contains more fine aggregate and cement, but less coarse aggregate. This research program examined the prestress losses of beams cast with SCC and compares those to losses of control beams cast with conventional concrete of the same compressive strength. Additionally, the research program examined the transfer and development length of SCC beams. / NOTE: Rept. for 1 Jul 05-31 Dec 07. / Supplementary Notes: Sponsored by Department of Transportation, Washington, DC. Research and Special Programs Administration. / 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： | u0825；98p |
| 报告类型： | 科技报告 |
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