The Bearing Capacity of The Recycled Concrete Two-Way Composite Slab Tests

In this paper, recycled aggregate from waste concrete is used as coarse aggregate, and fly ash is added to replace part of cement. According to the mixture performance and 28 day compressive strength of ordinary concrete, the optimal mix proportion of recycled concrete is obtained, and then the composite plates of two materials are designed and manufactured by ourselves. By testing the compressive strength of recycled concrete and ordinary concrete, and calculating the bearing capacity of the composite plate, the results show that the recycled concrete designed in this paper has the advantages of good compressive strength, good workable slump and low cost. The composite plate has good bearing capacity in theory and meets the design requirements.