PFA concrete: influence of simulated in situ curing on elasto-plastic load response

A study comparing the elasto-plastic load response of OPC and PFA concretes was undertaken using temperaturematched curing (TMC) to simulate in situ conditions. For a given strength, the concrete type and curing regime had no sign$cant effect on the modulus of elasticity. However, PFA concrete showed a more ductile failure than the corresponding OPC concrete. In addition, higher plastic strain energies for the PFA concretes indicated better postfailure toughness than that of the OPC concretes.