No AccessAn activation energy approach for the temperature dependence of basic creep of hardened cement paste

Abstract

Arrhenius rate theory is used to describe the temperature dependence of basic creep of hardened cement paste, within certain temperature limits. The time shift principle is coupled with this Arrhenius temperature dependence to obtain an overall power law relationship between creep strain and equivalent time (which accounts for both temperature and time dependence). This enables the formulation of an extrapolation technique for basic creep strains in situations where there are time or temperature constraints on experimentation. Two distinct values of activation energy corresponding to two different temperature ranges, are used to arrive at possible creep mechanisms that would operate in each of these ranges.