Study on creep coefficient formulae of concrete

Directed towards the use limitation of the current prediction model of creep, to combine the current characteristic of concrete material and the available test data, and referring to the pertinent model abroad, the method that the other factors are controlled under standard state but only this factor varies is adopted to evaluate the feasibility of the model. In the prediction of creep of high performance concrete each influencing factor can be quantified and it avoids the limitation of the need of a large number of test data. It also supplements the defect that the factors considered are simple in the common prediction model of concrete. The calculation is simple and convenient and the fitting accuracy is better.