Predicting the deformability of expanded polystyrene in long-term compression
Santrauka
The interval prediction of creep strain on the basis of 15 years is carried out for slabs of expanded polystyrene (EPS) subjected to a compressive load. The expansion of the confidence interval caused by the discounted prediction information is allowed for by an additional factor. The creep compliance c (t = 15) of the EPS is determined based on empirically estimating the long-term creep of this material subjected to a compressive stress σ c = 0.3σ10% for 15 years. A relationship between c (t = 15) and EPS density in the slabs is established.