Dongqing Zhang;Zheng Wang;Shuang Lu;
<正>In cold area,the freeze-thaw cycling durabiliy of building materials is the one of the primary influence factor.This paper studied on the loss ratio of the relative dynamic elastic modulus of the autoclaved fly ash bricks,which is according to the ultrasonic speed after suffering different freeze-thaw cycles.After that the corresponding numerical model has been established accordingly.The results indicate that the calculated results by the model can fit with the experimental data very well.Further,the model can be applied for predicting the service life by using environment parameters as the factors in the model.
Freeze-thaw cycling;;Autoclaved fly ash brick;;model;;dynamic elastic modulus;;Durability
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