Investigation of the Compressive Stress of the Layered-Structure Dual-Density Mineral Wool Slabs

Abstract

This paper provides with the experimental results obtained by determination the dependence of the compressive stress at
the 10 % deformation of the layered-structure dual-density mineral wool slabs (or their parts) on their density, also the
influence of the density of separate layers on the compressive stress of the whole product and different density layers of
the dual-density structure mineral wool. The test results show that, while applying to the layered-structure dual-density
specimen by the compressive load, firstly, the lower-density slab part (layer) deforms, and, after it reaches a certain limit
of consistence, the higher-density layer slightly deforms, as well. The values of the compressive stress of the layeredstructure
dual-density stone wool slabs depend on the density, and the values of the compressive stress of the whole
product depend more on the density of the layer having the lower-density and its compressive stress.