原文传递
Experimental evaluation of overlays for precast concrete decks used in accelerated bridge construction
| 题名： | Experimental evaluation of overlays for precast concrete decks used in accelerated bridge construction |
| 其他题名： | 1.Issa,M.A.,A.A.Yousif,M.A.Issa,I.I.Kaspar,and S.Y.Khayyat.1995."Field Performance of Full-Depth Precast Concrete Panels in Bridge Deck Reconstruction."PCI Journal 40(3):82-108. |
| 正文语种： | 英文 |
| 作者： | Erika D. Weber |
| 关键词： | Bond;bridge;carbon-fiber-reinforced polymer;CFRP;chlorides;corrosion;deck;overlay;posttensioning |
| 摘要： | In accelerated bridge construction, bridge decks are constructed using precast concrete elements ranging from half-depth or full-depth precast concrete panels to decks constructed on entire bridge superstructures moved with self-propelled modular transporters or slide-in bridges. The ability of different bridge-deck-overlay materials to protect the concrete against intrusion of chloride ions is investigated. Two panel configurations were tested considering accelerated bridge construction methods: application of the overlay before movement of the bridge-deck panels and application of the overlay after movement of the bridge-deck panels. Three types of bridge-deck-overlay materials were investigated: thin bonded polymer, polyester polymer concrete, and methyl methacrylate. Criteria used to evaluate the three types of overlay materials included bond strength between the overlay and precast concrete bridge-deck panels and chloride penetration into the deck panels. Although the overlays had slightly different bond performance, they offered similar protection against chlorides. There was no significant difference between the performance of the overlays applied prior to placement of the precast concrete deck panels and that of overlay systems applied after the placement of the precast concrete deck panels. |
| 出版年： | 2015 |
| 论文唯一标识： | J-30Y2015V60N05027 |
| 英文栏目名称： | PCI Journal's 60th Anniversary |
| 期刊名称： | PCI-Prestressed Concrete Institute Journal |
| 拼音刊名(出版物代码)： | J-30 |
| 卷： | 60 |
| 期： | 05 |
| 页码： | 65-75 |
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