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Temperature-Dependent Performance of Polymer Concrete Wearing Surface System on the Poplar Street Bridge; Final rept
| 题名： | Temperature-Dependent Performance of Polymer Concrete Wearing Surface System on the Poplar Street Bridge; Final rept |
| 作者： | Gopalaratnam, V. S.; Baldwin, J. W.; Cao, W. M. |
| 关键词： | Epoxy resins; Bridge decks; Coverings; Box girders; Field tests; Mechanical properties; Cracking fracturing; Metal plates; Polymer concretes; Flexural strength; Bend tests; Steels |
| 摘要： | The report details a five-year study of the performance of the epoxy (polymer) concrete wearing surface placed on the orthotrohic steel-plate deck of the Polar Street Bridge in St. Louis, Missouri. This study invovled inspections, field testing and laboratory experiments and analyses. During the first few years, the focus was on the field study components. Later when some cracks were observed on the wearing surface, a detailed experimental and analytical investigation was incorporated to understand the cause of the cracks and study potential crack-repair procedures. Laboratory experiments were undertaken to study the temperature-dependent mechanical properties of the polymer concrete materials used on the bridge deck. Experiments included a series of static flexural tests, axial compression tests and flexural fatigue tests on the polymer concrete specimens under three different test temperatures. Temperature-dependent mechanical properties such as modulus of elasticity and fatigue strength were obtained from the tests. |
| 总页数： | 90p |
| 报告类型： | 科技报告 |
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