A MODEL FOR CONCRETE DURABILITY DEGRADATION IN FREEZE-THAWING CYCLES

Up to now, how to control the durability of concrete structures is still a pending research topic in civil engineering. Owing to the fact that concrete durability can be affected by many non-mechanical factors, it is very difficult to research durability only based on mechanics.However, the phenomenon of failure caused by non-mechanical factors is similar to that caused by loads. As frost durability reflects the comprehensive durability of concrete in a certain sense,the specific failure process is analyzed and a damage model is introduced, which can describe the durability degradation process of concrete in the whole freeze-thawing cycle.

A MODEL FOR CONCRETE DURABILITY DEGRADATION IN FREEZE-THAWING CYCLES

Up to now,how to control the durability of concrete structures is still a pending research topic in civil engineering.Owing to the fact that concrete durability can be affected by many non-mechanical factors,it is very difficult to research durability only based on mechanics. However,the phenomenon of failure caused by non-mechanical factors is similar to that caused by loads.As frost durability reflects the comprehensive durability of concrete in a certain sense, the specific failure process is analyzed and a damage model is introduced,which can describe the durability degradation process of concrete in the whole freeze-thawing cycle.