STUDY ON THE FRESH STATE PROPERTIES OF SELF COMPACTING CONCRETE MODIFIED WITH RECYCLED CONCRETE AGGREGATE

In recent years, self-compacting concreteis becoming a popular method of construction because of its unique ability like filling formworks with congested steel reinforcement and no need for mechanical compaction. Due to the environmental effects associated with the natural aggregates in concrete production, a more sustainable approach in producing self- Compacting concrete is to replace natural aggregates with that of Recycled concrete aggregate this form of concrete provides a suitable alternative way of reducing the environmental issues associated with the extraction and depletion of natural resources. This experimental research provides information about the fresh and hardened properties of different forms of selfcompacting Concrete by utilizing RCA. The results of the setting of cement revealed that it has a progressive effect on the fresh state properties of SCC and critically reduces the occurance of shrinkages. At the same time, these RCA reduce the heat in the exothermic hydration reactions of cement in SCC and limit their cracking due to thermal shrinkage