Concrete early age basic creep Experimen

This study investigates the influence of temperature on basic creep strains of concrete at an early age, particularly in the context of massive structures where temperature can rise significantly before equilibrating with the environment. The objective is to assess how constant and transient temperature variations affect the basic creep behavior of concrete. The methodology involves conducting compressive basic creep tests under controlled temperature conditions in a climatic chamber, utilizing a specialized measurement setup that minimizes external temperature influences on strain and load-rate measurements. Experimental results demonstrate that increasing the temperature can amplify basic creep strains by a factor of two to three, while transient temperature decreases can also lead to complications such as cracking. The findings reveal that the inherent properties of the materials involved are affected under varying thermal conditions, providing insights into concrete behavior during early stages of hydration and loading. This research contributes to better understanding and modeling of concrete performance in real-world conditions, with implications for engineering practices in the construction of massive structures.