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Evaluation of the Fatigue and Toughness of Fiber Reinforced Concrete for use as a New Highway Pavement Design.
| 题名： | Evaluation of the Fatigue and Toughness of Fiber Reinforced Concrete for use as a New Highway Pavement Design. |
| 作者： | Kevern, J.; Runow, T.; Mulheron, M.; Collier, Z.; Icenogle, P. |
| 关键词： | Louisiana, Fatigue behavior, Toughness, Fiber reinforced concrete structures, Evaluation, Highway design, Pavement design, Reinforcement (Structures), Performance, Steel fibers, Louisiana Department of Transportation and Development(LADOTD), Morganza Spillway Bridge, TECH SUMMARY, Roller Integrated Compaction Monitoring (RICM) |
| 摘要： | Concrete pavement design is currently centered on steel reinforcement, whether that reinforcement be in the form of dowel bars, as is the case in jointed plain concrete pavement (JPCP), or in the form of continuous rebar reinforcement, continuously reinforced concrete pavement (CRCP). The use of steel in concrete pavements presents durability problems due to the corrodibility of steel. This study evaluates the use of polypropylene fibrillated, polypropylene macro, carbon, and steel fibers as primary reinforcement in concrete pavements. Results showed that fiber reinforcement can be used to improve both the fatigue and toughness performance of concrete. When post-cracked strength or toughness is the concern, concrete containing more fibers and fibers with higher tensile strength are desirable. Carbon fibers maintained greater load-carrying capacity at lower deflections than the steel fibers, which produced the greatest ductility. However, toughness and fatigue performance did not correlate for small deflections, suggesting that polypropylene macro fibers may be adequate for repeated, low stress loading. This study also found that when repeated low deflections |
| 总页数： | Kevern, J.; Runow, T.; Mulheron, M.; Collier, Z.; Icenogle, P. |
| 报告类型： | 科技报告 |
相关文献
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