Test die for concrete impermeability test

Abstract

The invention discloses a test die for a concrete impermeability test, which has certain improvements on the conventional test die for the concrete impermeability test. Referring to a detailed drawing 1, permanent screw-down pressing devices (8, 9 and 10) are arranged on an original test die; for the improved test die, the operations of dismounting the pressing devices, reversely placing the pressing devices on a tester platform and the like are not needed after finishing the wax-sealing between a test block and the test die, but, the pressing devices are not dismounted and the test die is not placed reversely, and the pressing devices are directly placed and fixed on the tester platform to perform a test after screwing down the test block and pressing the test block against the test die, thereby overcoming the influence on the accuracy of the test result due to the water seepage which is caused by wax-sealing cracking between the test block and the test die because of the operations of dismounting a pressure device, cooling the test die, placing the test die reversely and the like. So the improved test die provides a forceful guarantee for the accuracy of the concrete impermeability test result and convenient operation, and obtains a very good effect in application.

Description

Technical field: [0001] The impermeability index test of impervious concrete used in civil engineering, this test model for impermeability experiment is suitable for determining the impermeability level of concrete after the impervious concrete test block is hardened. Background technique: [0002] detailed figure 1 , the traditional test mold for this technology is a circular table tube with a bottom inner diameter of 186mm, a top inner diameter of 176mm, and a height of 150mm. According to the size of the test mold 1, the concrete test block 2 is made correspondingly, and after hardening to a certain strength, the surrounding area is rolled with hot wax 3 , and then two people use the special pressurization device 4 to press the test block into the test mold, and then withdraw the pressure after the hot wax solidifies, take out the test mold with the test block up and down (the bottom of the test mold faces down) and install it on the impervious Put it on the experimental...

AI Technical Summary

Problems solved by technology

In this way, the problem of water seepage due to the relatively sliding wax seal of the test block and the test mold being damaged and water seepage is better solved after decompression and removal of the special pressurizing device after the test block and the test mold wax seal is cooled. The pressure device on the top of the mold can easily remove the test block from the test mold under the action of pressure water

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