Title: The Prediction of Long Term Creep in Concrete Based on Early Age Testing

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Publication: CIA

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Date: 2/28/2011

Abstract:
With the increasing need to build high rise structures on confined sites with useable space requirements dictating off centre cores a new focus has come onto the elastic and plastic behaviour of concrete. Designers of high rise structures are now more frequently needing to more accurately predict the short term elastic and longer term creep and drying shrinkage deformation of concrete. Understanding of this behaviour allows the designer to better estimate column and core wall shortening and better balance this in design. In this paper the author acknowledges previous work on these issues and proposes a modification in model for estimating the longer term creep using earlier age test results as well as a new model for estimating concrete modulus of elasticity.