Özet:

One of the most important durability features for the building elements is the resistance they showed after exposing to the high temperature effect. In this study, the characteristics of high-temperature effects of concrete samples produced with the additions of the polished high oven curve (IÖYFC), basalt (BZ) and overoxide (U) were studied. For this purpose, the concrete mixture in accordance with the requirements specified in the TS 802 standard, instead of the thin aggregate, has been added to the mass of 10-20% high oven curve, 10-20% basalt and 1-2% overoxide. Examples of 7 and 28 days with high oven curve, basalt and overoxide contributed were left at an hour temperature of 600 and 800 °C and subjected to two different cooling regimes, in the air and in the water. Examples exposed to high temperatures have been tested with pressure resistance and ultrasonic wave speed. Examples also performed 7 and 28 day pressure resistance, ultrasound transition speed and stretching tests. Exposure to a high temperature effect of 600 °C shows that the pressure resistance values in the air after cooling are 40–20–8% compared to the reference sample, and the pressure resistance values in the water after cooling are 60–55–42 compared to the reference sample, and that the contribution of IOFC10, IOFC20 and U1 increases the resistance values against the high temperature effect. This assessment has shown that the contribution of high oven curve and overoxide can be used in the production of concrete resistant to the high temperature effects in concrete mixture as a thin aggregate. Keywords: Basalt, High oven curve, Sustainability, High temperature

Anahtar Kelimeler:

Özet:

One of the most important durability properties for structural elements is the strength they show after being exposed to high temperature effects. In this study, the properties of concrete samples produced with ground blast furnace slag (İÖYFC), basalt (BZ) and ulexite (U) additives under high temperature effect were investigated. For this purpose, 10-20% blast furnace slag, basalt 10-20% and ulexite 1-2% were added by mass instead of fine aggregate in the concrete mixture in accordance with the requirements specified in the TS 802 standard. 7 and 28 days old samples with blast furnace slag, basalt and ulexite were exposed to 600 and 800 ° C temperature for one hour and subjected to two different cooling regimes, air and water. Compressive strength and ultrasonic wave velocity tests were performed on samples exposed to high temperatures. In addition, 7 and 28 days compressive strength, ultrasound velocity and abrasion tests were performed on the samples. The compressive strength values after air cooling of the samples exposed to 600 ° C high temperature effect are 40% -20% -8% compared to the reference sample and the compressive strength values after cooling in water are 60% -55% -42% compared to the reference sample for GBFS10, GBFS20 and It shows that the U1 contribution increases the resistance values against the high temperature effect. With this evaluation, it has shown that blast furnace slag and ulexite admixture can be used as fine aggregate in the concrete mixture in the production of concrete resistant to high temperature effects. Keywords: Basalt, Ground Blast Furnace Slag, Boron Wastes, Durability, High temperature