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Protection of Reinforcement with Corrosion Inhibitors, Phase 1; Final rept
| 题名： | Protection of Reinforcement with Corrosion Inhibitors, Phase 1; Final rept |
| 作者： | Allyn, M.; Frantz, G. C.; Stephens, J. E. |
| 关键词： | Reinforcing steels; Corrosion prevention; Concrete pavements; Corrosion inhibitors; Bridge(Structures); Concrete durability; Tests; Salts; Ice prevention |
| 摘要： | Costs due to corrosion in reinforcement in concrete caused by deicing salts has been estimated at up to $1 billion per year in the US alone. For most situations, corrosion inhibiting admixtures offer significant advantages over other protection methods to delay initiation of corrosion for the service life of the structure. Two new prototype corrosion inhibiitng chemicals were evaluated and compared with two commercial corrosion inhibiting admixtures as well as with a typical air-entrained control concrete. Corrosion testing consisted of weekly wetting (with salt solution) and drying cycles applied to slab type specimens and to both 2-inch and 3-inch diamter lollipop specimens. Some lollipop specimens were also 'pre-cracked' prior to corrosion testing. Linear polarization techniques measured corrosion rates. Reinforcing bar were removed and visually examined at completion of testing. Other concrete material test results included compression strength, freeze-thaw resistance, and absorption. |
| 总页数： | 204p |
| 报告类型： | 科技报告 |
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