Comparative Study of Various Creep and Shrinkage Prediction Models for Concrete.

Various prediction models have been developed to predict the creep and shrinkage in concrete. Experimental studies to measure the creep and shrinkage in concrete have also been carried out by researchers and reported in the literature. RILEM has compiled all these experimental studies which are stored in a computerized data bank. This paper briefly describes some of the recent models which are based on the extensive research and experimental studies. Creep and shrinkage have been predicted up to 5,000 days of observation by the ACI-209R-82 model, the B3 model, the CEB-FIP model code 1990, and the GL2000 model for various grades of concrete. Predicted values of creep and shrinkage were compared with the experimental results of Russell and Larson, in 1989, as well as the RILEM data bank. Prediction of creep and shrinkage by GL2000 model is found to be the closest to the experimental results. [ABSTRACT FROM AUTHOR]