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CONDITION EVALUATION OF CONCRETE BRIDGES RELATIVE TO REINFORCEMENT CORROSION. VOLUME 3: METHOD FOR EVALUATING THE CONDITON OF ASPHALT-COVERED DECKS.
| 题名： | CONDITION EVALUATION OF CONCRETE BRIDGES RELATIVE TO REINFORCEMENT CORROSION. VOLUME 3: METHOD FOR EVALUATING THE CONDITON OF ASPHALT-COVERED DECKS. |
| 作者： | Algongi-AJ; Clemena-GG; Cady-PD |
| 关键词： | REINFORCED-CONCRETE-BRIDGES; CONDITION-MONITORING; STEEL-RENFORCEMENT; CORROSION-; MODELS-; STRATEGIC-HIGHWAY-RESEARCH-PROGRAM; DELAMINATION-; RADAR-; SOFTWARE- |
| 摘要： | This volume describes the development of a technique for nondestructively determining the presence of delaminations at the top and bottom reinforcement levels. The technique employs the use of short pulse, ground-penetrating radar. Extensive radio frequency modeling of the bridge deck scenario was carried out in order to establish theoretical limits of paramters and capabilites. The best discriminant for delamination at the top renforcement level is signal attenuation, and at the bottom reinforcement level, increase in the amplitude of the bottom rebar signal. Advanced radar data acquistion and signal processing equipment and software were also developed to provide a useable system at the practical level. |
| 总页数： | 1992/09. pp84 (Figs., Tabs., 17 Ref.) |
| 报告类型： | 科技报告 |
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