6 th International Conference on Materials Science and Nanotechnology For Next Generation (MSNG2019), Niğde, Turkey, 16 - 18 November 2019, pp.364-370
If the concrete is affected by high temperature, significant decreases in strength are observed. The temperature of the concrete at
250-300 °C is considered as a limit. It is stated that the damage occurring below this temperature is insignificant. As the
temperature progresses into the concrete during the fire, the regions where the temperature rises above these limits are damaged
and the carrier part of the structure decreases gradually.
In this study, we researched the strength properties of the geopolymer concretes produced from the mortar, which is a mixture of
slag, fly ash and sodium silicate (Na2SiO3) solution. Uniaxial compressive strengths (UCS), point load strengths (PLS), and the
stress-strain curves were revealed and the optimal condition for geopolymer concrete production were determined. After the
optimum conditions were selected, the concrete specimens were exposured to high temperatures (400, 500 and 600 °C). Effect of
the high temperatures on strength of the produced specimens were examined.