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Intelligent tester for concrete permeability

A technology of intelligent measurement and permeability, applied in the direction of measuring devices, material inspection products, material analysis through electromagnetic means, etc., can solve problems such as copper mesh electrode breakage

Inactive Publication Date: 2009-06-10
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defect that the copper grid electrode is easily broken due to electrolytic reaction during the measurement process in the prior art, the invention provides an intelligent measurement device for concrete permeability

Method used

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Experimental program
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specific Embodiment approach 1

[0005] Specific implementation mode one: the following combination figure 1 This embodiment will be described. It consists of a cathode chamber container 1 with one side open, an anode chamber container 3 with an open side, a specimen fixing chamber 2, a cathode terminal 9, an anode terminal 10, a No. 1 graphite electrode 6 and a No. 2 graphite electrode 11. The specimen fixing chamber 2 is a cavity with open ends. The cathode chamber container 1 is buckled on one end surface of the specimen fixing chamber 2 so that the inner cavities of the two are connected and the buckled position is sealed. The anode chamber container 3 is buckled. On the other end surface of the specimen fixing chamber 2, the inner cavities of the two are connected and the fastening position is sealed. The cathode terminal 9 is fixed between the inner and outer surfaces of the cathode chamber container 1, and the anode terminal 10 is fixed in the anode chamber. Between the inner and outer surfaces of the...

specific Embodiment approach 2

[0006] Specific implementation mode two: the following combination figure 1 This embodiment will be described. The difference between this embodiment and Embodiment 1 is that it also includes a sealing gasket 8, an annular groove 2-1 is opened in the inner cavity of the specimen fixing chamber 2, and the sealing gasket 8 is arranged in the annular groove 2-1. In this way, the cylindrical concrete sample 7 is inserted into the ring groove 2-1 provided with the sealing gasket 8 to ensure reliable isolation between the cathode chamber container 1 and the anode chamber container 3 . Other components and connections are the same as those in Embodiment 1.

specific Embodiment approach 3

[0007] Specific implementation mode three: the following combination figure 1 This embodiment will be described. The difference between this embodiment and Embodiment 1 is that it also includes No. 1 bolt 12 and No. 2 bolt 13. The No. 1 bolt 12 is screwed between the cathode chamber container 1 and the anode chamber container 3 to fix the two. No. bolt 13 is tightened between the cathode chamber container 1 and the anode chamber container 3 to fix the two. With such arrangement, the installation and disassembly of the device are very convenient. Other components and connections are the same as those in Embodiment 1.

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Abstract

The invention relates to concrete penetrability intelligent measuring device that includes an open mouthed cathode room container, an open mouthed anode room container, sample fixing room, and a cavity. The invention adopts graphite electrode that avoids the measuring error caused by copper net electrolyzing broken and / or the air bubble from electrode reaction.

Description

technical field [0001] The invention relates to a device capable of quickly measuring the permeability of concrete. Background technique [0002] At present, the American ASTM C1202 test method is the most widely used rapid test method for concrete permeability measurement. The device consists of cathode chamber, anode chamber, copper mesh electrode, 60V DC power supply and ammeter. Seal the side of the concrete specimen with a diameter of 100mm and a thickness of 50mm after vacuum saturation, and then fix it between the cathode chamber and the anode chamber. Inject the NaCl solution with a content of 3% into the cathode chamber, inject the NaOH solution with a content of 0.3mol / L into the anode chamber, respectively connect the copper grid electrodes of the cathode and anode to the negative and positive electrodes of the 60V DC power supply, and connect the ammeter in series to the circuit, and every The current is recorded once every 30 minutes, and the electricity is co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/403G01N27/60G01N13/04G01N33/38
Inventor 巴恒静张武满邓红卫高小建关辉
Owner HARBIN INST OF TECH