Study On The Interfacial Bonding Performance Between Steel Fiber Polymer Concrete And Old Concrete

The author first through the use of different steel fiber polymer concrete mix as repairmaterials, research new and old concrete bonding interface agent is applied, differentbonding of old concrete bonding interface bonding old concrete curing period afterforming the drawing affect performance and interfacial shear properties.Determined thebest steel fiber polymer concrete mix which so that to achieve the best performancebond between new and old concrete bonding interface bonding performance. at thesame time, the results show that polymer cement slurry has greatly increased the use ofinterface agent of the old and new concrete interface bond properties.Through the case of steel fiber polymer concrete slab with the old benchmarkthree-point bending beam experiments in different steel fiber polymer concrete mix asordinary concrete repair materials and repair material as a contrast study of the oldconcrete bonding interface fracture properties.While in the case of the destruction of oldconcrete fracture studies continue to exert pressure on the flexural properties of oldconcrete bonding after.Through the experimental study of steel fiber polymer concreteas the repairing material after fracture and bending performance is far stronger than theordinary concrete, at the same time established the best mixture ratio of steel fiberpolymer concrete as the repairing material.In terms of microstructure：1.using scanning electron microscopy study of steel fiberpolymer concrete microscopic morphology2.The effect of the incorporation of steelfiber polymer emulsion density and porosity of the concrete by water absorptionexperiment of steel fiber polymer concrete.Through the experimental study for theanalysis of steel fiber polymer concrete microstructure affect the performance of thenew and old concrete bonding surface bonding.