再生骨料对再生混凝土力学性能的影响研究OA

In order to deeply explore the influence of recycled aggregate on the mechanical properties of recycled concrete,recycled concrete samples were prepared by using recycled coarse aggregate of different proportions instead of the original natural aggregate,and the basic physi-cal and mechanical properties of the samples were tested and analyzed.The results show that with the increase of recycled aggregate content,the water absorption and voidage of recycled concrete show a gradual increase trend,while the density decreases correspondingly.When the re-cycled aggregate content reaches 40%,the density of recycled concrete shows a significant decrease of about 1.26%compared with that of nat-ural aggregate.In addition,the mechanical properties of recycled concrete,such as compressive strength and splitting tensile strength,are sig-nificantly different from those of natural aggregate concrete.