THE PHYSICAL AND MECHANICAL CHARACTERISTICS RESEARCH OF POLYSTYRENE BY WATER ABSORPTION
Results of prolonged water absorption test of expandable polystyrene (EPS) and extruded polystyrene  (XPS) are set forth in this paper. Dependence between the water absorpion of polystyrene  slabs and the continuance of theirs seasoning in water was determine for the reason of experimental data. It was researched the influence of prolonged water absorption on the  compression resistance when having 10% of linear strain, on the hardness by Shore's method of testing, on the quantity of linear growth or swelling. In this paper it is forth the polymer  structure with strongly pronounced process of texture anisotropy progres in the issue of destruction