Relationship Between Gas Adsorption and the Shrinkage and Creep of Recycled Aggregate Concrete

    Volume 25, Issue 2 (December 2003)

    ISSN: 0149-6123

    CODEN: CCAOAD

    Page Count: 7


    Gómez-Soberón, JMV
    Ph.D., Technical University of Catalonia, Spain, studied the M.Eng. (Construction) at the National University of Mexico and Civil Engineer of the Autonomous University of Puebla in Mexico,

    (Received 6 April 2002; accepted 19 May 2003)

    Abstract

    In this work, an experimental analysis is described of specimens of recycled concrete (RC) made with replacement of natural aggregate with recycled aggregate originating from concrete (RCA). An experimental analysis to obtain the shrinkage and creep properties (basic and by drying) of RC was performed. The replacement fraction of natural aggregate with RCA were 0 %, 15 %, 30 %, 60 % and 100 % and the test conditions were 50 % RH and 20 °C. The results of these trials were compared with mercury intrusion porosimetry (MIP) and gas adsorption (nitrogen) tests, at 90 days. In the results, an increase in the shrinkage and creep properties of the RC with respect to conventional concrete was observed, while porosity values increased. However, the deformation evolution over time is similar to conventional concrete.


    Paper ID: CCA10442J

    DOI: 10.1520/CCA10442J

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    Author
    Title Relationship Between Gas Adsorption and the Shrinkage and Creep of Recycled Aggregate Concrete
    Symposium , 0000-00-00
    Committee C01