Pavement Designer ile SSB Yol Tasarımı (RCC Pavement Design on Pavement Designer)
Автор: Dr. Yavuz Abut
Загружено: 2021-04-14
Просмотров: 482
www.pavementdesigner.org
Roller-compacted concrete (RCC) pavements are a type of concrete pavement that do not include embedded steel or load transfer devices and typically is not jointed due to its method of placement. Load transfer is provided in an RCC pavement by way of enhanced aggregate interlock developed due to the compaction of the fresh RCC in addition to an optimized aggregate gradation that includes a higher percentage of fine aggregates relative to conventional paving concrete. The strength development is much quicker relative to conventional paving concrete (see figure to the right) due to the enhanced aggregate interlock provided by a dense, well-graded aggregate gradation. The dry nature of RCC, along with its dense aggregate gradation, allows the pavement to be compacted using vibratory rollers. It is typically specified that within 45-60 minutes of mixing, final compaction should be completed.
Additionally, RCC is unlike the other concrete pavement types because it is placed using a paver (which could be a high density paver or a typical paver used for asphalt paving) and compacted with rollers similar to the process of asphalt paving.
A detailed background can be found in the Guide For Roller-Compacted Concrete Pavements:
http://wikipave.org/index.php?title=G...
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