Aging of standard concretes and their effect on concrete cone failure

The safe design of infrastructure demands accurate long-term predictions of load carrying mechanisms associated with different physical mechanisms of all structural elements and materials that might lead to changes in structural response throughout time. In particular, those phenomena that lead to deterioration and/or failure have to be understood and captured by suitable prediction models. However, also the accurate prediction of time-variant material properties such as compressive strength, tensile strength, and fracture energy is of significance. In the present paper we present an experimental campaign aiming at a full characterization of one chosen concrete mix (compressive strength, Young’s modulus, fracture energy, indirect tensile strength) as well as pull-out tests and shear tests of headed stud anchors at different ages. The evolution of material properties is compared to the respective fib Model Code prediction equations. The significance of the obtained data and formulations is evaluated based on the current compressive strength based design equations for anchor pull-out loads with concrete cone failure