International Journal of Concrete Structures and Materials

Korea Concrete Institute (한국콘크리트학회)
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Evaluation of Internally Cured Concrete Pavement Using Environmental Responses and Critical Stress Analysis

  • Kim, Kukjoo (Engineering School of Sustainable Infrastructure and Environment, University of Florida) ;
  • Chun, Sanghyun (Engineering School of Sustainable Infrastructure and Environment, University of Florida)
  • Received : 2015.05.26
  • Accepted : 2015.09.25
  • Published : 2015.12.31
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Abstract

Three full-scale instrumented test slabs were constructed and tested using a heavy vehicle simulator (HVS) to evaluate the structural behavior of internally cured concrete (ICC) for use in pavements under Florida condition. Three mix designs selected from a previous laboratory testing program include the standard mixture with 0.40 water-cement ratio, the ICC with 0.32 water-cement ratio, and the ICC mixture with 0.40 water-cement ratio. Concrete samples were prepared and laboratory tests were performed to measure strength, elastic modulus, coefficient of thermal expansion and shrinkage properties. The environmental responses were measured using strain gages, thermocouples, and linear variable differential transformers instrumented in full-scale concrete slabs. A 3-D finite element model was developed and calibrated using strain data measured from the full-scale tests using the HVS. The results indicate that the ICC slabs were less susceptible to the change of environmental conditions and appear to have better potential performance based on the critical stress analysis.

Keywords

References

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