(Received 6 April 2002; accepted 19 May 2003)
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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.
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,
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