In this paper steel slag is considered as an aggregate which could improve fire resistance of concrete due to the fact that it is a material that occurs at high temperatures. Three concrete mixtures were exposed to high temperatures impact. Upon cooling of the specimens, their residual mechanical properties were tested. Achieved results and microstructural analysis promote the theory that steel slags could be used as fire resistant aggregates. This characteristic of material is important in case of use in railway tunnels.
COBISS.SI-ID: 1696615
As an economic measure for the rehabilitation and/or upgrading of existing railway lines, geogrids for reinforcement have successfully been installed. The geogrid reinforcement restrains lateral deformations of the sub-base through shear interaction, which reduces permanent horizontal strains and vertical stresses in the long run. The paper presents results from field measurements of a geogrid reinforced railway embankment on soft soil.
COBISS.SI-ID: 1691495