Abstract
The deformation characteristics of unsealed concrete specimens during heating have been studied in connection with fire research and a hypothetical core failure in a nuclear reactor. A substantial increase of creep rates was observed during the temperature increase in the concrete. It is not possible to compare the non-steady state creep with those creep deformations, which have been observed under isothermal creep conditions. Even if concrete is treated as a material without memory and the appropriate law of superposition is applied the deformations under transient (rapid heating) conditions cannot be described by creep laws being derived under isothermal conditions. The test results suggest a creep law, which is directly related to the concrete deformations being observed under transient temperature conditions.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
