Prediction of creep of polymer concrete

Polymer concrete possesses viscoelastic properties conditioned by relaxatio n processes in the polymer binder. Their acceleration with an increase of t emperature (principle of time-temperature equivalence) is used in predictin g the long-term creep of polymer concrete. Physical aging of the polymer bi nder influences the creep of polymer concrete. To predict the long-term cre ep accounting for the aging process, an attempt to improve the time-tempera ture equivalence principle was undertaken. As a result of the experimental study of polyester resin-based concrete and its structural components (a re sin unfilled and filled with diabase flour), it has been established that t he changes in the creep compliance of the material follow according to the principle of the time-aging time equivalence with the reduction function de pending on aging temperature. To predict the long-term creep of polymer con crete, a function of the time-temperature-aging time reduction was applied. (C) 1999 John Wiley & Sons, Inc.