Detection Method On Fundamental Mechanical Behavior Of The Brick Masonry Before And After Reinforcement Based On The Dirlled Core Test

Cored drilling test has been widely used as a partially destructive test method in concrete structure as it could really reflect the actual stress states quality of the material of the structural elements,it also could be used to detect the concrete which stays under long ages fire and cold chemical erosion.Since now cored drilling test has been just used to test the shear strength of the horizontal mortar joint in brick masonry.So it still needs further study such as compressive strength of brick masonry before and after reinforcement and interface shear strength between inner masonry and outer polymer mortar by cored drilling test.In view of this,this dissertation conducts a further study upon detection method on fundamental mechanical behavior of brick masonry before and after reinforcement by cored drilling test:In the first place,making the feasibility research of detection method on fundamental mechanical behavior of brick masonry before reinforcement by core drilling test,a total of 234 core samples and 18 masonry standard parts were tested for compressive test.Analyze the result from construction feasibility and data reasonableness to convent that whether the method is feasibility through 234 core simples and 18 masonry standard components.According to the requirement of the feasibility research experiment and subsequent compressive strength before and after reinforcement and interface shear strength between inner masonry and outer polymer mortar,and the specific position of the core types and samples in the masonry structure,the basic mechanical test bearing for the cored drilling test is designed by theoretical analysis.By adjusting the center angle of the test bearing to ensure the compressive strength of the core before and after reinforcement is roughly 2 to 3 times than the value of the masonry standard components.Afterwards,drilling and managing 630 core simples from the 315 pieces of the brick masonry,through the compressive strength and interface shear strength showed by the 630 core simples and 45 masonry standard components,we concluded the relationship between the core simples and masonry standard components,the law of compressive strength and interface shear strength of the core simples which have the same bricks and different kinds of mortars,the comparison tables of compressive strength and interface shear strength of the core simples which have the different mortars and different kind of bricks with masonry standard components.At length,provide the matters needing attention of the method when detect the compressive strength and interface shear strength according to technical specification for testing concrete strength with drilled core method and technical specification for testing shear strength of masonry.