Effect of high temperature or fire on heavy weight concrete properties
Temperature plays an important role in the use of concrete for shielding nuclear reactors.
In the present work, the effect of different durations (1, 2 and 3 h) of high temperatures (250, 500, 750 and 950 jC) on the physical, mechanical and radiation properties of heavy concrete was studied.
The effect of fire fitting systems on concrete properties was investigated.
Results showed that ilmenite concrete had the highest density, modulus of elasticity and lowest absorption percent, and it had also higher values of compressive, tensile, bending and bonding strengths than gravel or baryte concrete.
Ilmenite concrete showed the highest attenuation of transmitted gamma rays.