International Journal of Concrete Structures and Materials

Korea Concrete Institute (한국콘크리트학회)
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Study of the Anisotropy of the Roller Compacted Concrete (RCC) for Pavement

  • Zdiri, Mustapha (Civil Engineering Laboratory, National Engineering School of Tunis) ;
  • Abriak, Nor-edine (Laboratoire de Genie Civil et Environnemental Ecole des Mines de Douai) ;
  • Ouezdou, Mongi Ben (Civil Engineering Laboratory, National Engineering School of Tunis) ;
  • Neji, Jamel (Applied Mechanics and Systems Research Laboratory - Polytechnic School of Tunis)
  • Received : 2009.09.17
  • Accepted : 2010.04.30
  • Published : 2010.06.30
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Abstract

The roller compacted concrete (RCC) is supposed to be isotropic, whereas the compaction of this material, which is achieved using the same machines used for the soil, appears only unidirectional, making the RCC an anisotropic material. In this experimental work, the influence of the phenomenon of compaction on the isotropy of the RCC is studied. This study was carried out through an evaluation of the compressive strengths and ultrasonic tests which were used for measurements of the elastic modulus and the dynamic Poisson's ratio of the RCC as well as a qualitative judgement of the RCC aspect at the hardened state. The results of this work proved the anisotropy of the RCC and they showed the sensitivity of the mechanical strengths and the elastic modulus to the compaction direction.

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References

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