Durability Assessment of Roller Compacted Concrete Using NDT

Abstract

The primary scope of this research is to study the durability of roller compacted concrete (RCC) samples that were constructed in the laboratory using roller compactor manufactured at local market. A total of 60 slab sample of (38×38×10) cm have been constructed using the roller device, cured for 28 days, then 180 sawed beams were obtained from RCC slab. The specimens were subjected to 60 cycles of each of the durability testing parameters including freezing and thawing, soundness against sulfate attack cycles and wetting and drying. The effect of implementation of two types of coarse aggregate (crushed and rounded) and cement content on the durability of RCC were investigated using the nondestructive test technique (NDT). The results indicated that RCC that contain crushed aggregate has superior quality when compared to RCC that contain rounded aggregate after durability testing. Based on the testing results, it was concluded that the resistance of RCC specimens to freezing and thawing, wetting and drying and sulfate attack test increase as cement content increase.