A Method for Obtaining Changes of Aggregate-mortar Bonding Strength in Concrete
A technology for bonding strength and concrete, which is applied in the direction of applying stable tension/pressure to test material strength, strength characteristics, and analysis of materials, and can solve the problem of inability to effectively obtain changes in the bond strength of the aggregate-mortar interface and difficulty in clamping, etc. problems, to achieve the effect of easy access and accuracy
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[0038] The present invention provides a scheme that can directly and effectively obtain the change of the bond strength of the aggregate-mortar interface in concrete. Its core is to calculate the proportion of the split aggregate on the split surface of the concrete split tensile test piece. The area ratio indirectly obtains the bond strength of the aggregate-mortar in the concrete, and draws out the relationship between the split aggregate ratio and the split compressive strength, and finally confirms the change of the aggregate-mortar interface strength through calculation. Such as figure 2 As shown, the implementation process of the present invention mainly consists of splitting tensile strength test of concrete specimens, image collection of splitting surfaces, calculation of split aggregate and desizing aggregate area, calculation of split aggregate ratio, and fitting split bone The relationship diagram of material ratio-fracture compressive strength and the change of aggr...
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