Measurement of Temperature of the Core of Concrete during Progressive Compressive Loading using Temperature Sensors

Abstract

Structural health monitoring and health diagnosis have become the integral parts of 21st century structural engineering practice. Many non-destructive tests are being used to assess the condition of the concrete in existing RCC structures. In addition to these Non-destructive tests sensing systems are also used to monitor the structural health of RCC structures. If a structure fails pre maturely; the consequences are not only the in effective usage of materials and reduction in life span of structures but also loss of money and sometimes loss of lives. When the load is applied on a structural element, it undergoes some deformation or volume change. Deterioration of concrete may be due to many reasons. But the serviceability is very important for the structures. During the application of external loading, concrete structures, and offer resistance and during this process, energy is utilized by the structure to resist the external load. The concrete is solid like a stone and some heat is developed in concrete during the process of loading. By embedding the temperature sensors in the concrete, it is possible to read the temperature developed inside the concrete. In the present investigation an attempt is made to find the change in temperature of concrete at different ages at regular intervals of progressive compressive loading starting from no load to failure of concrete. This will be useful for estimating the health of concrete structures as it is possible to find the temperature changes and the condition of concrete at different percentages of ultimate load.