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Continuous loading device capable of being used for freeze-thaw cycle test

A technology of loading device and freeze-thaw cycle, which is used in measuring devices, using stable tension/pressure to test the strength of materials, instruments, etc., which can solve the problems of complicated operation, difficult freeze-thaw test devices, and limited number of equipment.

Pending Publication Date: 2021-07-30
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These devices are complicated to operate when loading, and the structure occupies a large space, so it is difficult to be used in the existing freeze-thaw test device, and the limited number of equipment cannot realize the comparative test

Method used

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  • Continuous loading device capable of being used for freeze-thaw cycle test

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Embodiment Construction

[0016] specific implementation plan

[0017] In order to enable relevant experimenters to better understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings.

[0018] This test device is used for concrete test blocks of 100*100*400mm, and the freeze-thaw test is carried out after the basic curing conditions are met.

[0019] The upper steel backing plate 6 and the lower steel backing plate 9 are made of flat and high-quality steel plates, the mold box is placed in the existing freeze-thaw cycle test device, the concrete test block is placed between the steel backing plate 6 and the steel backing plate 9, and the force sensor 7 Placed above the steel backing plate 6 and in close contact with the swivel bearing 3 , while the swivel bearing 3 is connected with the pressure screw rod 1 .

[0020] Place the concrete test block flatly, and place the steel backing plate 6 and the force sensor 7 in sequence. C...

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Abstract

The invention relates to a continuous loading device capable of being used for a freeze-thaw cycle test. The continuous loading device is characterized in that the bottom part of a mold is connected with a steel base plate through a high-strength spring, the upper part of the mold is composed of a screw pressure rod, a swivel bearing, a pressure sensor and the steel base plate, the screw pressure rod is connected with a box door through a screw hole, and the swivel bearing, the pressure sensor and the steel base plate are sequentially arranged below the screw pressure rod from top to bottom. The continuous loading device capable of being used for the freeze-thaw cycle test is simple in structure, convenient to use and low in manufacturing cost, and can realize the freeze-thaw cycle test of the concrete test block in a continuous loading state.

Description

technical field [0001] The invention belongs to the field of mechanical property tests of civil engineering compression components, and in particular relates to a continuous loading test device which can be used for freeze-thaw cycle tests. Background technique [0002] Concrete structures in cold regions are often subjected to coupling effects of freeze-thaw cycles and loads during work, which adversely affects the safety and durability of structures. At present, many scholars have studied the durability of concrete under the single factor of freeze-thaw cycle, and only a few scholars have studied the coupling effect of freeze-thaw cycle and load. Therefore, the establishment of a continuous loading device that can be used in freeze-thaw cycle tests is of great significance for future research on the coupling effect of freeze-thaw cycles and loads. [0003] At present, the continuous load test of concrete compression members is mainly carried out by means of jack loading a...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N3/18G01N3/04G01N25/00
CPCG01N3/04G01N3/08G01N3/18G01N25/00G01N2203/0019G01N2203/0224
Inventor 冯川孙杰
Owner WUHAN UNIV OF SCI & TECH
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