Abstract
To explore the effects of the replacement rate of recycled aggregate, the content of graphene oxide (GO) and GO oxygen content on the fracture performance of recycled concrete (RC). In this paper, three point bending method was used to study the fracture property of GO-RC. The results show that the use of recycled aggregate will reduce the fracture property of RC, and the fracture property of RC will gradually improve with the increase of GO content. With the same amount of GO, the strengthening effect of 20% GO with oxygen is better than 40% GO with oxygen. The fracture energy and fracture toughness increase with the addition of GO, so GO plays an important role in improving the fracture performance of RC.
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