Test device used for measuring durability of concrete under multi-factors action

Abstract

The invention discloses a test device used for measuring durability of concrete under multi-factors action. The test device comprises two vertical plates; the two vertical plates are connected with atransverse support plate; the lower parts of the two vertical plates are connected through two transverse connecting rods; the middle part of the transverse support plate is provided with a hole; a vertical threaded connecting rod is capable of moving in the hole; a nut is arranged below the transverse support plate, and is connected with the vertical threaded connecting rod; the top of the vertical threaded connecting rod is connected with a bearing plate, and the bottom is fixedly connected with a semi-elliptic cylinder shaped pressing head; the upper part of each vertical plate is providedwith an operation hole; each vertical plate is provided with three vertical elliptical clamping grooves, and the three vertical elliptical clamping grooves are arranged in an inverted triangle pattern; the two ends of each movable support rods are movable connected with corresponding vertical elliptical clamping grooves. The test device is capable of realizing measuring of the durability of concrete samples under stress, corrosion, and freezing and thawing cycle actions, controlling loading value of concrete samples accurately; test of three concrete samples can be completed at one time; and test time is short.

Description

technical field [0001] The invention relates to a tool for concrete testing, in particular to a testing device for measuring the durability performance of concrete under the action of multiple factors. Background technique [0002] Studies have shown that load action, corrosive environment and freeze-thaw cycles have a great influence on the durability of structures. It has become the main factor affecting the performance degradation of reinforced concrete structures. The concrete structure in this environment, in addition to being under load for a long time, is also affected by the surrounding environmental factors, that is, the actual concrete structure is in a complex working condition with multiple factors acting together. [0003] The current test equipment is relatively simple, and the test method is relatively simple. For the research on the durability of concrete, the test device used for the test cannot accurately control the load value applied to the component, so...

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Problems solved by technology

[0003] The current test equipment is relatively simple and the test method is relatively single. For the research on the durability of concrete, the test device used for the test cannot accurately control the load value applied to the component, so the research on the influence of different load values ​​on the durability of concrete cannot be accurate. determination

In addition, the current test is still limited to the case where only a single factor is considered, and it is impossible to guarantee the corrosion and freeze-thaw cycle experiments of the components under load.

For example: According to the concrete frost resistance test method stipulated in the national standard "Ordinary Concrete Long-term Performance and Durability Test Method Standard GB / T50082-2009", the stress effect on the durability performance of the concrete specimen cannot be considered at the same time during the freeze-thaw cycle. influences

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