Investigation of Thermal Properties of Normal Weight Concrete for Different Strength Classes

Concrete is a common construction material which its thermal properties influence on energy consumption of buildings, significantly. The main aim of this study is to investigate the thermal properties of normal weight concrete for different strength classes and the performance of normal weight concrete was measurement by studying the mechanical, physical and thermal properties. Also, develop the correlations between thermal properties with mechanical and physical properties. The results showed that the thermal properties of concrete would be changed based on its different strength classes. The results indicated that the thermal conductivity, specific heat capacity and thermal diffusivity of normal weight concrete with a compressive strength in the range of 15 to 62 MPa are in the range of 1.6 to 3.2 W/m.K, 0.92 to 1.16 kJ/kg.K and 0.69 to 1.34 (×10 m /s), respectively.