Material Properties Concrete admin May 20, 2016January 17, 2017 Material Properties for Concrete Physical specifications of materials. Materials Concrete Description Density g/cc 1.28 lb/in^3 0.04625 Hardness Brinell unless specified Tensile Strength ultimate Mpa Ksi Yield Strength MPa Ksi Modulus of Elasticity Gpa 10^6 Psi Poisson’s Ratio %Elongation at break %Reduction of area Izod Impact J Ft-lb Fracture Toughness Mpa(m)^0.5 0.9 Ksi(in)^0.5 0.81 Thermal conductivity W/m-K 0.51 Btu/ft-h-F 0.29479768782 Specific Heat Cpacity J/g-K Btu/lb-F Coefficient of thermal expansion 1E-6/K 1E-6/F Electrical Resistivity Ohm-cm