MECHANICAL STRENGTH OF SELF COMPACTING MORTAR AT HIGH TEMPERATURES

Abstract

Nowadays, the ecological trend is directed towards restricting the utilization of natural resources materials in the construction sector. This study examines the impact of high temperatures on the mechanical properties of self compacting mortars (SCMs) that include marble dust (MD). For this aim, four SCMs were prepared with the objective of replacing the cement with MD at varying proportionsof 0, 10, 15 and 20% by weight and compared to reference mortar. The mechanical properties of SCMs are investigated separately at different curing days (2, 7, 28-d) and high temperatures (300°C, 600°C and 900°C) over a period of 1hour. Based on the results, it was established that maintaining a temperature of 300°C is crucial for achieving optimal mechanical properties in the cured SCMs, as any temperature beyond this range leads to a decline in its performance.