Akademik Veri Yönetim Sistemi
2. Uluslararası İzmir Fen, Mühendislik ve Uygulamalı Kongresi, İzmir, Türkiye, 14 - 16 Ekim 2023, ss.1-4
Due to the high energy demand and high CO2 emissions associated with cement production, the potential use of fly ash, an industrial waste, and tincal ore rich in boron minerals within the geopolymer matrix has been investigated in this study. In the research, fly ash in the size range of -212 +106 µm and ground tincal were activated with 12M sodium hydroxide. After this activation, cementless cylindrical samples based on fly ash and tincal with dimensions of 14x28 mm were prepared. The samples were cured at 70 ºC for different curing times of 6, 12, and 24 hours, and subsequently, their compressive strengths were measured at 14, 28, and 90-day intervals. Curing time is a critical factor determining the mechanical properties of geopolymer material. The results of this study show that as the curing time increases, the compressive strength also increases. Especially in the samples cured for 24 hours, the strength was observed to be at its highest level. The best compressive strength results, recorded as 4.39 MPa, were obtained from samples activated with 12M NaOH, cured at 70ºC for 24 hours, and measured at the end of 90 days. These results indicate that high-performance geopolymer composites can be produced by using fly ash and tincal in the right proportions under suitable conditions and with the correct curing times.