Akademik Veri Yönetim Sistemi
8th INTERNATIONAL CONGRESS ON CONTEMPORARY SCIENTIFIC RESEARCH, Stockholm, İsveç, 1 - 08 Temmuz 2025, ss.510-519, (Tam Metin Bildiri)
Roller-compacted
concrete (RCC) is widely used in applications such as airports, industrial
facilities, dams, and road construction due to its low binder content,
cost-effectiveness, and rapid placement. However, the stringent fire safety
requirements in these areas have increased the significance of understanding
RCC’s behavior under high-temperature exposure. In this study, the influence of
varying thermal conditions on the mechanical characteristics of RCC was
examined, with particular emphasis on compressive strength and weight losses.
For this purpose, four different concrete mixtures were produced by the maximum
density method. Each mixture having a water-cement ratio of 0.42 and contained
300 kg/m³ of CEM I 42.5 R type cement as the binder material. The prepared
concrete specimens were then subjected to 25°C, 300°C, 600°C, and 900°C
temperatures to evaluate the high-temperature performance of RCC. The results
indicated a significant reduction in compressive strength and increased weight
loss at elevated temperatures, particularly noticeable at 600°C and 900°C.
Contrary to these results, a 7-9% increase in compressive strength was observed
at 300°C. These findings underscore the importance of considering thermal
effects in the design and application of RCC, particularly in fire-prone
environments. Further research is essential to optimize RCC formulations to
enhance their thermal resistance and overall performance under extreme
conditions.