Freezing-thawing environment-based concrete splitting tension testing device
A test device, a technology for concrete specimens, applied in the direction of measuring devices, applying stable tension/pressure to test material strength, instruments, etc., can solve the peeling of mortar on the surface of specimens, inability to carry out research work more conveniently, quality loss, etc. problem, achieve the effect of realizing automation and avoiding the loss of test piece quality
Inactive Publication Date: 2017-05-10
CHINA THREE GORGES UNIV
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Problems solved by technology
[0002] At present, there are many types of freeze-thaw chambers for concrete materials subject to freeze-thaw cycles, but it is not possible to perform split-pull tests immediately after freeze-thaw cycles, and certain quality loss and test results will be caused during the process of hoisting and transporting test pieces. The peeling of the mortar on the surface of the parts has a certain adverse effect on the study of the split-tension test of the concrete under the action of freeze-thaw cycles.
At the same time, the splitting test of saturated concrete subjected to freezing and thawing in the water environment is limited by the existing experimental equipment, and it is not convenient to carry out research work
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[0020] As shown in the figure, a concrete splitting test device based on a freeze-thaw environment includes a freeze-thaw box 2 and a split box 3, the split box 3 is fixed in the freeze-thaw box 2, and the split box 3 is also equipped with Concrete specimen 1, freeze-thaw liquid drain valve 8 and freeze-thaw liquid inlet valve 10 are provided on freeze-thaw chamber 2, split-pull box 3 is provided with split-box drain valve 9 and split-box water inlet valve 11, freeze-thaw liquid The liquid drain valve 8, the freeze-thaw liquid inlet valve 10, the split box drain valve 9 and the split box water inlet valve 11 are all arranged outside the freeze-thaw box 2;
[0021] Also be provided with the first capacitive sensor 12 and freeze-thaw box temperature sensor 14 on the inner wall of freeze-thaw box 2, be provided with the second capacitive sensor 13 on the inner wall of split box 3, first capacitive sensor 12, the second capacitive sensor 13 and Freezing-thawing box temperature sen...
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A freezing-thawing environment-based concrete splitting tension testing device comprises a freezing-thawing tank and a splitting tension box, wherein the splitting tension box is fixedly arranged in the freezing-thawing tank, a concrete sample is also arranged in the splitting tension box, the freezing-thawing tank is provided with a freezing-thawing draining valve and a freezing-thawing liquid inlet valve, the splitting tension box is provided with a splitting tension box draining valve and a splitting tension box inlet valve, and the freezing-thawing draining valve, the freezing-thawing liquid inlet valve, the splitting tension box draining valve and the splitting tension box inlet valve are all arranged on the outer side of the freezing-thawing tank; the inner side wall of the freezing-thawing tank is also provided with a first capacitive sensor and a freezing-thawing tank temperature sensor, the inner side wall of the splitting tension box is provided with a second capacitive sensor, and the first capacitive sensor, the second capacitive sensor and the freezing-thawing tank temperature sensor are all connected with a controller. By adopting the structure of the freezing-thawing environment-based concrete splitting tension testing device, a quick splitting tension test can be performed after freezing-thawing cyclic load acts on concrete, thus effectively avoiding sample mass loss and sample surface mortar peeling in a sample carrying process and ensuring the accuracy of a test result.
Description
technical field [0001] The invention relates to the field of concrete splitting and pulling tests, in particular to a concrete splitting and pulling test device based on a freeze-thaw environment. Background technique [0002] At present, there are many types of freeze-thaw chambers for concrete materials subject to freeze-thaw cycles, but it is not possible to perform split-pull tests immediately after freeze-thaw cycles, and certain quality loss and test results will be caused during the process of hoisting and transporting test pieces. The peeling of the mortar on the surface of the parts has a certain adverse effect on the study of the split-tension test of the concrete subjected to the freeze-thaw cycle load. At the same time, the split-tension test of saturated concrete after freeze-thaw in water environment is limited by the existing experimental equipment and cannot be carried out more conveniently. Contents of the invention [0003] The technical problem to be so...
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IPC IPC(8): G01N3/08G01N3/18G01D21/02
CPCG01N3/08G01D21/02G01N3/18G01N2203/0016G01N2203/0228
Inventor 谢京辉陈灯红
Owner CHINA THREE GORGES UNIV