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Methods for Evaluating and Treating ASR-Affected Structures: Results of Field Exposure Sites.
| 题名： | Methods for Evaluating and Treating ASR-Affected Structures: Results of Field Exposure Sites. |
| 作者： | Drimalas, T.; Folliard, K. J.; Fournier, B.; Garber, S. I.; Thomas, M. D. A. |
| 关键词： | Alkali-silica Reaction(asr); Concrete Durability; Concrete Structures; Construction; Cracking(fracturing); Exposure; Field Investigation; Hardened Concrete; Laboratory Testing; Non-destructive Analysi |
| 摘要： | As part of the FHWA ASR Development and Deployment Program, two sites were built to study ASR in new concrete construction. Concrete blocks were produced with a range of aggregates and cementitious materials and placed on outdoor exposure sites at the University of Hawaii in Manoa on the inland of Oahu and at a DOT storage facility in Lawrence, Massachusetts. The main purpose of these studies was to (i) provide information on the reactivity of local aggregates which could be used as a benchmark to calibrate standard laboratory tests. (ii) determine the efficacy of various preventive measures for controlling ASR expansion, and (iii) provide data to validate guidelines such as AASHTO PP65-11. |
| 报告类型： | 科技报告 |
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