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Flexural behavior and analysis of prestressed ultra-high-performance concrete beams made from locally available materials
| 题名： | Flexural behavior and analysis of prestressed ultra-high-performance concrete beams made from locally available materials |
| 其他题名： | 1.Graybeal,B.2008."UHPC in the U.S.Highway Transportation System."In Ultra-High Performance Concrete(UHPC):Proceedings of the Second International Symposium on Ultra High Performance Concrete,Kassel,Germany,March 5-7,2008.Kassel,Germany:Kassel University Press. |
| 正文语种： | 英文 |
| 作者： | Andrew J. Giesler |
| 关键词： | Experimental testing;local materials;UHPC;ultra-high-performance concrete |
| 摘要： | Ultra-high-performance concrete (UHPC) is a ce-mentitious material with a dense microstructure. This contributes to high compressive strengths, as well as enhanced durability properties resulting in improved, sustainable construction. The material also possesses significant postcracking strength and ductility due to the addition of steel fibers. These characteristics produce a material that provides advantages over conventional concrete; however, the high costs of materials and production, lack of industry familiarity, and absence of standardized design procedures have impeded its widespread use. Producing UHPC with locally available materials creates a more economical product. This research focused on the design, flexural testing, and analysis of three large-scale prestressed beams using UHPC mixture proportions developed with materials local to the state of New Mexico. Parameters varied among the prestressed specimens and included the removal of all mild steel reinforcement and the effect of a composite cast-in-place concrete deck. Experimental strengths were compared to design strengths according to the American Association of State Highway and Transportation Officials' AASHTO LRFD Bridge Design Specifications. |
| 出版年： | 2018 |
| 论文唯一标识： | J-30Y2018V63N06034 |
| 英文栏目名称： | Innovation |
| 期刊名称： | PCI-Prestressed Concrete Institute Journal |
| 拼音刊名(出版物代码)： | J-30 |
| 卷： | 63 |
| 期： | 06 |
| 页码： | 66-80 |
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