Experimental Study on Effects of Adding Recycled Aggregate on Concrete Mechanical Properties
In this paper,the effects of adding recycled aggregate on the mechanical properties of concrete are studied experimentally.The effects of different recycled aggregate replacement rates on the basic physical and mechanical properties of concrete are analyzed,and the effects of age on the mechanical properties of concrete are discussed.In the experiment,waste materials formed by road maintenance are selected as the source of reclaimed coarse aggregate,and river sand is supplemented as fine aggregate.Seven groups of samples with different reclaimed aggregate substitution rates are designed.The results show that appropriate addition of recycled aggregate in a certain range can improve the compressive strength,tensile strength and flexural strength of concrete,and will not significantly reduce its basic physical properties.Age also has a certain influence on the mechanical properties of concrete.Therefore,this paper provides a reference for the application of recycled aggregate in concrete production.
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