原文传递
Swelling Pavement: KY 499 Estill County.
| 题名： | Swelling Pavement: KY 499 Estill County. |
| 作者： | BECKHAM, T. L.; HOPKINS, T. C. |
| 关键词： | *Swelling-; *Pavements-.;Laboratory-tests; Absorption-; Expansion-; Chemical-reactions. |
| 摘要： | A field and laboratory investigation was performed to determine why excessive swelling was occurring on a pavement section of Kentucky Rout 499 that was about four years old. Swelling occurred on a section of roadway that had been constructed with a hydrated lime-stabilized subgrade. As shown by laboratory sell tests, swelling of the pavement was due to the absorption of water and expansion of the compacted clay shale subgrade. Results of laboratory sell tests showed that the hydrated lime stabilization of the shale actually reduced swelling. Chemical reactions between calcium, present in the hydrated lime, and sulfates, which were present in small amounts did not contribute to swell. |
| 报告类型： | 科技报告 |
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