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An interface bonding static and dynamic performance test device and test method

An interface bonding and test device technology, which is applied in the measurement device, strength characteristics, preparation of test samples, etc., can solve the problem of high cost of time and consumables, and achieve the effect of simple structure, simple operation and low test cost.

Active Publication Date: 2022-03-18
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For example, the test devices in the above two applications can only test the shear stress performance or tensile stress performance respectively. If it is necessary to conduct a more comprehensive study on the static and dynamic mechanical properties of the interface bonding of the same material, it is necessary to prepare Two test rigs and casting at least two sets of test pieces for adapted sample shapes for both test rigs, both time and consumable costs are high

Method used

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  • An interface bonding static and dynamic performance test device and test method
  • An interface bonding static and dynamic performance test device and test method
  • An interface bonding static and dynamic performance test device and test method

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Embodiment 1

[0067] The following will be combined with Figure 1~Figure 6 The interface bonding static and dynamic performance test device of the present invention will be further described in detail.

[0068] Such as figure 1 and figure 2 As shown, the test piece unit 1 of the present embodiment comprises an inner mold one 10 and an inner mold two 11, the inner mold one 10 and the inner mold two 11 are square cylinders with openings at both ends, the inner mold one 10 and the inner mold two 11 The shape and size are all the same and symmetrically arranged, and the two inner molds each have an end face connected to each other; from figure 1 and figure 2 Viewed from the angle of view, the front side of the inner mold 10 is close to the docking position with the inner mold 2 11, and a rectangular side opening 100 is opened, so that the front side of the inner mold 10 is in a sideways "concave" shape. A side opening 100 with the same shape and size is also provided at the same height p...

Embodiment 2

[0080] This embodiment shows the test method utilizing the interface bonding static and dynamic performance test device of embodiment 1, and the steps are as follows:

[0081] 1. Preparation of test pieces:

[0082] a1. As soon as the test piece is prepared, install the baffle plate 12 at the side opening 100 of the inner mold 10, pour concrete material into the inner mold 10 until it is flush with the end surface of the inner mold 10, and form a test piece 4 ;

[0083] a2. Preparation of test piece 2. After the maintenance of test piece 14 is completed, the inner mold 11 is docked and fixed with the inner mold 10 through the baffle plate 12, and other materials are poured into the inner mold 11, such as concrete, rubber, polyurethane, etc. The material that forms the bonding interface with the concrete is specifically determined according to the test requirements. It is poured until it is flush with the end surface of the inner mold 2 11 to form the specimen 2 5. At this tim...

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Abstract

The invention discloses an interface bonding static and dynamic performance test device and a test method, belonging to the technical field of material interface tests. The device includes a test piece unit, which includes an inner mold 1 and an inner mold 2 whose end faces are connected; an outer mold 1 has an assembly hole 1 on it, and the inner mold 1 is detachably connected to the assembly hole 1, and the outer mold 1 faces the inner mold 2. Protrusions are formed on the end surface of the outer mold 2, and an assembly hole 2 is opened on it, and the inner mold 2 is detachably connected to the assembly hole 2, and the end surface of the outer mold 2 facing the inner mold 1 is formed with a mating projection. The chute, the length of the chute is greater than the length of the bump; when the bump is connected with the chute, the height of the first bottom surface of the outer mold is lower than the height of the second bottom surface of the outer mold, and the height of the first top surface of the outer mold is lower than the second top surface of the outer mold height position. The invention only needs one test device to realize the static and dynamic performance test of the bonding interface under the action of tensile and shear loading, the device is easy to assemble and the test cost is low.

Description

technical field [0001] The invention belongs to the technical field of material interface tests, and more specifically relates to a test device and a test method for the static and dynamic performance of interface bonding. Background technique [0002] Concrete is one of the most important contemporary civil engineering materials. It has the advantages of high compressive strength and good durability. When applying concrete materials, it is inevitable to form a bond with other building materials or even with old concrete. Interface, the strength and durability of the bonded interface are often less than the concrete material itself, so the study of the mechanical properties of the bonded interface is a key factor to study whether concrete can work together with other materials. [0003] There are many indicators to characterize the mechanical properties of the bonded interface, such as interface tensile strength, interface shear strength, interface fracture energy, interface...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/24G01N3/08G01N3/04G01N1/36
CPCG01N3/24G01N3/08G01N3/04G01N1/36G01N2203/0025G01N2001/366
Inventor 金浩
Owner SOUTHEAST UNIV