Device for testing binding force of reinforcing steel bar and concrete

A testing device and concrete technology, which is applied in the direction of measuring devices, mechanical devices, and preparation of test samples, etc., can solve problems such as complicated manufacturing steps, reduced safety, applicability and durability of reinforced concrete, and large experimental errors. Achieve easy operation and application, reduce test costs, and make simple effects
CN102680397AInactive Publication Date: 2012-09-19SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2012-09-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a device for testing binding force of a reinforcing steel bar and concrete. The device comprises a reinforcing steel bar, a cylindrical substrate PVC (Poly Vinyl Chloride) pipe, an internal round steel board, an external round steel board, a base PVC pipe and an adhesive tape. The external round steel board is fixedly connected with an outer wall at the bottom of the cylindrical substrate PVC pipe through the adhesive tape, so as to form a cylindrical barrel device; the base PVC pipe is arranged on a horizontal surface; the cylindrical barrel device is arranged on the base PVC pipe; the reinforcing steel bar passes through the external round steel board and the base PVC pipe in sequence, and reaches the horizontal surface; and after concreting is completed, the internal round steel board passes through the reinforcing steel bar, and is arranged in the base PVC pipe, so as to correct a center position of the reinforcing steel bar. Compared with the prior art, the device provided by the invention has the advantages of being simple in manufacturing, high in precision, low in cost and the like.
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Description

technical field

[0001] The invention relates to the field of an experimental test device for the performance of civil engineering materials, in particular to a test device for the bonding force between steel bars and concrete. Background technique

[0002] Reinforced concrete structure is one of the most widely used structural forms in modern civil engineering structures. With the passage of structural service time and the erosion of the service environment, the materials continue to age, the structural performance degrades, and the service life decreases. The durability of reinforced concrete structures It has become a key issue for the sustainable development of buildings. A large number of studies have shown that there are many factors that affect the durability of reinforced concrete structures, such as steel corrosion, concrete freeze-thaw damage, and concrete alkali-aggregate reaction. The most important factor of deterioration. The bonding force between steel bars an...

Claims

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