Steel slags are by-products in the steel production industry and can be used for different purposes; e.g. as aggregates in concrete. It is thermally unstable, and upon heating it undergoes volume changes. Upon heating above 800 °C wustite decomposes into magnetite and this transformation is being accompanied by volumetric expansion, which introduces cracks in the the refractory concrete and drastically worsens its mechanical properties. If slag is heated up to a temperature of 1000 °C, slag become thermally stable in become suitable for use at elevated temperature.
COBISS.SI-ID: 1753959
The dissipated energy is determined from the stress-strain hysteresis loop. The pore water pressure is divided into the residual and temporary parts, both corelated with dissipated energy. Such a formulation allows response modeling, which includes a description of: the dynamic load, the residual and temporary parts of pore pressure and the temporary strain during the time of dynamic loads.
COBISS.SI-ID: 14990614